feat(tci): the QSO recorder can take its audio from the radio

Confirmed on a real SunSDR: the stream decodes and the test recording
plays back clean. So it can do the job a virtual audio cable was doing —
this wires it to the QSO recorder, which already accepts a pushed source
(the Icom network audio uses the same door).

The conversion lives here rather than in internal/cat: the radio's job is
to hand over what it sent, not to know that the recorder works in 16 kHz
mono. Three samples are AVERAGED rather than two of them dropped —
decimating by picking every third folds everything above 8 kHz back into
the voice band, and on a receiver that is hiss, which a QSO recording has
plenty of already.

Off by default, and applied the moment it is switched: it replaces a
sound card the operator has already wired up, and an option that needs a
restart to take effect reads as an option that does not work.

app.go

@@ -312,6 +312,7 @@ const (
 	keyClusterSelfSpot    = "cluster.self_spot"         // "1" → announce ourselves on the cluster as we log
 	keyClusterSelfSpotMin = "cluster.self_spot_minutes" // shortest gap between two self-spots
 	keyClusterSpotTTL     = "cluster.spot_ttl_min"      // drop spots older than this; 0 = keep them
+	keyClusterSpotMax     = "cluster.spot_max"          // how many spots the list holds at once
 
 	keyScpEnabled = "scp.enabled" // Super Check Partial / N+1 suggestions on
 
@@ -15261,7 +15262,11 @@ func (a *App) reloadCAT() {
 		a.cat.Start(cat.NewIcomNet(s.IcomNetHost, s.IcomNetUser, s.IcomNetPass, s.IcomAddr, s.DigitalDefault, audioSink))
 	case "tci":
 		// Expert Electronics TCI (WebSocket) — SunSDR / ExpertSDR2, or any
-		// TCI-compatible server.
+		// TCI-compatible server. The receive audio rides the same socket, so
+		// the QSO recorder can take it without a virtual cable — see
+		// app_tci_rec.go. Armed after the backend is up, since it is the
+		// backend that carries the stream.
+		defer a.startTCIRecording()
 		tb := cat.NewTCI(s.TCIHost, s.TCIPort, s.DigitalDefault, s.TCISpots)
 		// Clicking one of our spots on the ExpertSDR panorama fills the entry form.
 		tb.OnSpotClick = func(call string, hz int64) {
@@ -20294,6 +20299,50 @@ func (a *App) SetKenwoodKeySpeed(wpm int) error {
 // and exists only so a mistyped value cannot mean "never".
 const spotTTLMax = 720
 
+// The spot list is a ring buffer, and its size decided the lifetime far more
+// often than the lifetime setting did: on a busy evening a thousand spots
+// arrive in a couple of minutes, so a fifteen-minute lifetime never got the
+// chance to expire anything. Hence a setting.
+//
+// The ceiling is a real limit, not a round number. Every spot is matched against
+// the worked index and the alert rules, and each one is a row the cluster grid
+// and every open band map re-render; past ten thousand that work starts to show
+// on the very evenings the list is worth having.
+const (
+	spotMaxDefault = 1000
+	spotMaxCeiling = 10000
+	spotMaxFloor   = 100
+)
+
+// GetSpotMax returns how many spots the list holds.
+func (a *App) GetSpotMax() int {
+	n, _ := strconv.Atoi(a.settingOr(keyClusterSpotMax, ""))
+	if n <= 0 {
+		return spotMaxDefault
+	}
+	return clampSpotMax(n)
+}
+
+// SetSpotMax sets it. Clamped here as well as in the UI, for the same reason as
+// the lifetime: the value decides how much work arrives on every spot, and a
+// stale frontend must not be able to widen it past the ceiling.
+func (a *App) SetSpotMax(n int) error {
+	a.setSetting(keyClusterSpotMax, strconv.Itoa(clampSpotMax(n)))
+	return nil
+}
+
+func clampSpotMax(n int) int {
+	if n < spotMaxFloor {
+		return spotMaxFloor
+	}
+	if n > spotMaxCeiling {
+		return spotMaxCeiling
+	}
+	return n
+}
+
+
+
 // GetSpotTTLMinutes returns how long a spot stays in the list, in minutes.
 // 0 means spots are kept until the count cap pushes them out, which is what
 // OpsLog always did.

app_k3.go

@@ -0,0 +1,115 @@
+package main
+
+// Elecraft K3/K4 panel bindings.
+//
+// The controls the operator asked for and nothing else: power, volume, the
+// S-meter and SWR, MOX, and an ATU tune. A K3 exposes dozens of commands, but a
+// panel earns its place by covering what is reached for during a QSO — and each
+// one added without a radio to test it against is a control that may or may not
+// do what its label says. See internal/cat/kenwood_panel.go.
+
+import (
+	"fmt"
+
+	"hamlog/internal/cat"
+)
+
+// GetKenwoodState returns the K3/K4 panel snapshot. Zero value when the active
+// CAT backend is something else, which is how the UI knows to hide the panel.
+func (a *App) GetKenwoodState() cat.KenwoodTXState {
+	if a.cat == nil {
+		return cat.KenwoodTXState{}
+	}
+	st, _ := a.cat.KenwoodState()
+	return st
+}
+
+func (a *App) SetKenwoodPower(w int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodPower(w) })
+}
+
+func (a *App) SetKenwoodAFGain(p int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodAFGain(p) })
+}
+
+func (a *App) SetKenwoodRFGain(p int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodRFGain(p) })
+}
+
+func (a *App) SetKenwoodMicGain(p int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodMicGain(p) })
+}
+
+func (a *App) SetKenwoodSquelch(p int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodSquelch(p) })
+}
+
+func (a *App) SetKenwoodPreamp(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodPreamp(on) })
+}
+
+func (a *App) SetKenwoodAtt(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodAtt(on) })
+}
+
+func (a *App) SetKenwoodNB(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodNB(on) })
+}
+
+func (a *App) SetKenwoodNR(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodNR(on) })
+}
+
+func (a *App) SetKenwoodAGC(name string) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodAGC(name) })
+}
+
+func (a *App) SetKenwoodFilter(hz int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodFilter(hz) })
+}
+
+func (a *App) SetKenwoodAntenna(n int) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodAntenna(n) })
+}
+
+func (a *App) SetKenwoodRIT(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodRIT(on) })
+}
+
+func (a *App) SetKenwoodXIT(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodXIT(on) })
+}
+
+// ClearKenwoodRIT zeroes the RIT and XIT offsets together, which is what the
+// radio's own RC does and what an operator means by "clear it".
+func (a *App) ClearKenwoodRIT() error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.ClearKenwoodRIT() })
+}
+
+// SetKenwoodTX is the panel's MOX.
+func (a *App) SetKenwoodTX(on bool) error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.SetKenwoodTX(on) })
+}
+
+// ToggleKenwoodATU puts the tuner in line or bypasses it (the HOLD of the same
+// front-panel switch the tune uses).
+func (a *App) ToggleKenwoodATU() error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.ToggleKenwoodATU() })
+}
+
+func (a *App) TuneKenwoodATU() error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.TuneKenwoodATU() })
+}
+
+// RefreshKenwood re-reads the settings on the next poll — for when a knob was
+// turned on the radio itself.
+func (a *App) RefreshKenwood() error {
+	return a.kenwoodPanelDo(func(k cat.KenwoodPanelController) error { return k.RefreshKenwood() })
+}
+
+func (a *App) kenwoodPanelDo(fn func(cat.KenwoodPanelController) error) error {
+	if a.cat == nil {
+		return fmt.Errorf("CAT not initialized")
+	}
+	return a.cat.KenwoodPanelDo(fn)
+}

app_tci_audio.go

@@ -0,0 +1,53 @@
+package main
+
+// TCI receive audio — bindings.
+//
+// A SunSDR carries its receive audio on the same WebSocket as its commands, so
+// OpsLog can take it directly instead of asking the operator to install a
+// virtual audio cable and wire ExpertSDR's output into it. This is the first
+// half: RECEIVE only, which is what the QSO recorder and the CW decoder need.
+// Transmit audio (the voice keyer) is the other half and is not here yet — it
+// has to answer the radio's chrono packets at the right pace, and that is worth
+// doing once the receive side has proved the format on a real radio.
+
+import (
+	"fmt"
+
+	"hamlog/internal/applog"
+	"hamlog/internal/cat"
+)
+
+// StartTCIAudio opens the receive-audio stream for one receiver.
+//
+// rate 0 means 48 kHz, which is what ExpertSDR streams by default and what the
+// recorder wants anyway.
+func (a *App) StartTCIAudio(rx, rate int) error {
+	if a.cat == nil {
+		return fmt.Errorf("CAT not initialized")
+	}
+	applog.Printf("tci: opening the receive-audio stream (rx %d, %d Hz)", rx, rate)
+	return a.cat.TCIAudioDo(func(t cat.TCIAudioController) error { return t.StartTCIAudio(rx, rate) })
+}
+
+// StopTCIAudio closes it.
+func (a *App) StopTCIAudio() error {
+	if a.cat == nil {
+		return fmt.Errorf("CAT not initialized")
+	}
+	applog.Printf("tci: closing the receive-audio stream")
+	return a.cat.TCIAudioDo(func(t cat.TCIAudioController) error { return t.StopTCIAudio() })
+}
+
+// GetTCIAudioStatus reports what is arriving: the sample rate the radio chose,
+// how much has come in, and the peak level of the last second.
+//
+// The level is the point. "The stream is open" and "audio is arriving" are
+// different claims, and only the second one is worth anything to someone
+// testing this on a radio for the first time.
+func (a *App) GetTCIAudioStatus() cat.TCIAudioStatus {
+	if a.cat == nil {
+		return cat.TCIAudioStatus{}
+	}
+	st, _ := a.cat.TCIAudioState()
+	return st
+}

app_tci_rec.go

@@ -0,0 +1,120 @@
+package main
+
+// Feeding the QSO recorder from the TCI stream.
+//
+// The recorder works in 16 kHz mono, which is what its files and its mixing are
+// built around; TCI delivers 48 kHz stereo float32. The conversion is the whole
+// of this file, and it happens here rather than in internal/cat because the
+// radio's job is to hand over what it sent, not to know what the recorder wants.
+//
+// Confirmed on a SunSDR (ExpertSDR3 1.5): 2048 samples a frame, 8192 bytes,
+// four bytes per sample — and a test recording that plays back clean.
+
+import (
+	"encoding/binary"
+
+	"hamlog/internal/applog"
+	"hamlog/internal/audio"
+	"hamlog/internal/cat"
+)
+
+// tciRecordSink pushes the receive stream into the QSO recorder.
+//
+// Installed whenever the TCI backend starts, and harmless when nothing is
+// recording: PushRX drops what arrives unless a QSO is being captured, so the
+// cost while idle is a decimation and a function call.
+func (a *App) tciRecordSink(rate int, samples []float32) {
+	if a.qsoRec == nil || len(samples) == 0 {
+		return
+	}
+	a.qsoRec.PushRX(tciToRecorderPCM(rate, samples))
+}
+
+// tciToRecorderPCM converts the stream's mono float samples to the recorder's
+// 16-bit PCM at its own rate.
+//
+// Averaging rather than picking every third sample: dropping samples aliases
+// everything above 8 kHz back down into the voice band, and on a receiver that
+// is hiss — the one thing a QSO recording has plenty of. A three-tap mean is a
+// crude low-pass, but it is a low-pass, and it costs two additions.
+func tciToRecorderPCM(rate int, samples []float32) []byte {
+	if rate <= 0 {
+		rate = 48000
+	}
+	step := rate / audio.RecorderSampleRate
+	if step < 1 {
+		step = 1
+	}
+	out := make([]byte, 0, (len(samples)/step)*2)
+	for i := 0; i+step <= len(samples); i += step {
+		var sum float32
+		for j := 0; j < step; j++ {
+			sum += samples[i+j]
+		}
+		v := sum / float32(step)
+		if v > 1 {
+			v = 1
+		}
+		if v < -1 {
+			v = -1
+		}
+		var b [2]byte
+		binary.LittleEndian.PutUint16(b[:], uint16(int16(v*32767)))
+		out = append(out, b[0], b[1])
+	}
+	return out
+}
+
+// startTCIRecording opens the receive stream and routes it to the recorder.
+//
+// Called when the TCI backend comes up, and only when the operator has asked
+// for it: opening a 384 kB/s stream on a station that records nothing is work
+// the radio does for nobody.
+func (a *App) startTCIRecording() {
+	if a.cat == nil || a.settingOr(keyTCIRecAudio, "") != "1" {
+		return
+	}
+	err := a.cat.TCIAudioDo(func(t cat.TCIAudioController) error {
+		if s, ok := t.(interface {
+			SetTCIAudioSink(func(int, []float32))
+		}); ok {
+			s.SetTCIAudioSink(a.tciRecordSink)
+		}
+		return t.StartTCIAudio(0, 48000)
+	})
+	if err != nil {
+		applog.Printf("tci: could not open the receive stream for recording: %v", err)
+		return
+	}
+	applog.Printf("tci: recording the receive audio over TCI — no virtual cable needed")
+}
+
+// keyTCIRecAudio turns it on. Off by default: it replaces whatever sound card
+// the operator has already wired up, and a setting that changes where a
+// recording comes from should be asked for rather than assumed.
+const keyTCIRecAudio = "audio.tci_rx"
+
+// GetTCIRecordAudio reports whether the recorder takes its audio from the radio.
+func (a *App) GetTCIRecordAudio() bool { return a.settingOr(keyTCIRecAudio, "") == "1" }
+
+// SetTCIRecordAudio turns it on or off, and applies it NOW rather than at the
+// next restart: an option that needs the application relaunched to take effect
+// reads as an option that does not work.
+func (a *App) SetTCIRecordAudio(on bool) error {
+	a.setSetting(keyTCIRecAudio, boolStr(on))
+	if on {
+		a.startTCIRecording()
+		return nil
+	}
+	if a.cat == nil {
+		return nil
+	}
+	return a.cat.TCIAudioDo(func(t cat.TCIAudioController) error {
+		if s, ok := t.(interface {
+			SetTCIAudioSink(func(int, []float32))
+		}); ok {
+			s.SetTCIAudioSink(nil)
+		}
+		return t.StopTCIAudio()
+	})
+}

app_tci_rec_test.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"encoding/binary"
+	"testing"
+
+	"hamlog/internal/audio"
+)
+
+// The stream is 48 kHz and the recorder works at 16 — three to one. A
+// recording that keeps every sample plays back three times too fast, which is
+// the fault that gets blamed on the decoding rather than on the rate.
+func TestTheStreamIsResampledToTheRecorderRate(t *testing.T) {
+	const in = 48000
+	samples := make([]float32, in/10) // a tenth of a second
+	pcm := tciToRecorderPCM(in, samples)
+	want := (audio.RecorderSampleRate / 10) * 2 // 16-bit
+	if len(pcm) != want {
+		t.Fatalf("a tenth of a second produced %d bytes, want %d", len(pcm), want)
+	}
+}
+
+// Full scale must arrive as full scale: a conversion that quietly halves the
+// level turns a recording into evidence of a fault that is not there.
+func TestFullScaleSurvivesTheConversion(t *testing.T) {
+	samples := make([]float32, 12)
+	for i := range samples {
+		samples[i] = 1
+	}
+	pcm := tciToRecorderPCM(48000, samples)
+	if len(pcm) < 2 {
+		t.Fatal("no samples came out")
+	}
+	v := int16(binary.LittleEndian.Uint16(pcm[:2]))
+	if v < 32000 {
+		t.Fatalf("full scale came out at %d", v)
+	}
+}
+
+// A rate the recorder already works in is passed through rather than mangled by
+// a division that would round to nothing.
+func TestAStreamAtTheRecorderRateIsNotDecimated(t *testing.T) {
+	samples := make([]float32, 160)
+	if got, want := len(tciToRecorderPCM(audio.RecorderSampleRate, samples)), 160*2; got != want {
+		t.Fatalf("%d bytes, want %d", got, want)
+	}
+}

app_tci_record.go

@@ -0,0 +1,175 @@
+package main
+
+// Recording a few seconds of the TCI stream to a WAV file.
+//
+// Counting frames proves a socket is delivering bytes. It does not prove those
+// bytes are the receiver's audio, at the right rate, in the right order — a
+// stream decoded with the channels swapped, the width wrong or the samples
+// misaligned counts exactly as well as a correct one and sounds like a fan.
+//
+// So the test is a file the operator can play. It is the same reason the CW
+// decoder was validated on the air rather than on a spectrogram.
+
+import (
+	"encoding/binary"
+	"fmt"
+	"math"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"hamlog/internal/applog"
+	"hamlog/internal/cat"
+)
+
+// tciRec collects samples while a test recording is running.
+type tciRec struct {
+	mu      sync.Mutex
+	active  bool
+	rate    int
+	samples []float32
+	want    int // how many samples to collect before stopping
+}
+
+var tciRecorder tciRec
+
+// RecordTCIAudio captures seconds of the TCI receive stream and writes a WAV
+// next to the QSO recordings. Returns the path.
+//
+// The stream has to be open already — this listens to what is arriving rather
+// than opening anything, so a recording can never leave a stream running that
+// the operator did not ask for.
+func (a *App) RecordTCIAudio(seconds int) (string, error) {
+	if a.cat == nil {
+		return "", fmt.Errorf("CAT not initialized")
+	}
+	if seconds <= 0 || seconds > 60 {
+		seconds = 10
+	}
+
+	// Rate from the radio, not assumed: the file's header has to match what was
+	// actually streamed or the recording plays at the wrong speed, which is the
+	// one fault that would be blamed on the decoding.
+	st := a.GetTCIAudioStatus()
+	if !st.Running {
+		return "", fmt.Errorf("open the TCI audio stream first")
+	}
+	rate := st.SampleRate
+	if rate <= 0 {
+		rate = 48000
+	}
+
+	tciRecorder.mu.Lock()
+	if tciRecorder.active {
+		tciRecorder.mu.Unlock()
+		return "", fmt.Errorf("a test recording is already running")
+	}
+	tciRecorder.active = true
+	tciRecorder.rate = rate
+	tciRecorder.want = rate * seconds
+	tciRecorder.samples = make([]float32, 0, tciRecorder.want)
+	tciRecorder.mu.Unlock()
+
+	err := a.cat.TCIAudioDo(func(t cat.TCIAudioController) error {
+		s, ok := t.(interface{ SetTCIAudioSink(func(int, []float32)) })
+		if !ok {
+			return fmt.Errorf("this backend has no audio sink")
+		}
+		s.SetTCIAudioSink(func(_ int, samples []float32) {
+			tciRecorder.mu.Lock()
+			defer tciRecorder.mu.Unlock()
+			if !tciRecorder.active {
+				return
+			}
+			tciRecorder.samples = append(tciRecorder.samples, samples...)
+		})
+		return nil
+	})
+	if err != nil {
+		tciRecorder.mu.Lock()
+		tciRecorder.active = false
+		tciRecorder.mu.Unlock()
+		return "", err
+	}
+
+	// Wait for the samples rather than for the clock: a stream that stalls
+	// halfway should produce a short file that says so, not a long one padded
+	// with silence that hides it.
+	deadline := time.Now().Add(time.Duration(seconds+5) * time.Second)
+	for {
+		tciRecorder.mu.Lock()
+		got := len(tciRecorder.samples)
+		want := tciRecorder.want
+		tciRecorder.mu.Unlock()
+		if got >= want || time.Now().After(deadline) {
+			break
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	tciRecorder.mu.Lock()
+	tciRecorder.active = false
+	pcm := tciRecorder.samples
+	tciRecorder.samples = nil
+	tciRecorder.mu.Unlock()
+	_ = a.cat.TCIAudioDo(func(t cat.TCIAudioController) error {
+		if s, ok := t.(interface{ SetTCIAudioSink(func(int, []float32)) }); ok {
+			s.SetTCIAudioSink(nil)
+		}
+		return nil
+	})
+
+	if len(pcm) == 0 {
+		return "", fmt.Errorf("nothing arrived on the stream")
+	}
+	path := filepath.Join(a.qsoRecDir(), fmt.Sprintf("tci-test-%s.wav", time.Now().Format("20060102-150405")))
+	if err := writeMonoWAV(path, pcm, rate); err != nil {
+		return "", err
+	}
+	applog.Printf("tci: wrote %.1f s of receive audio to %s (%d Hz)", float64(len(pcm))/float64(rate), path, rate)
+	return path, nil
+}
+
+// writeMonoWAV writes float samples as 16-bit mono PCM.
+//
+// Its own writer rather than internal/audio's: that one is nailed to the voice
+// keyer's rate, and a test recording written at the wrong rate would play back
+// at the wrong speed — the one fault that looks exactly like a decoding error.
+func writeMonoWAV(path string, samples []float32, rate int) error {
+	data := make([]byte, len(samples)*2)
+	for i, v := range samples {
+		s := int(math.Round(float64(v) * 32767))
+		if s > 32767 {
+			s = 32767
+		}
+		if s < -32768 {
+			s = -32768
+		}
+		binary.LittleEndian.PutUint16(data[i*2:], uint16(int16(s)))
+	}
+	var hdr [44]byte
+	copy(hdr[0:], "RIFF")
+	binary.LittleEndian.PutUint32(hdr[4:], uint32(36+len(data)))
+	copy(hdr[8:], "WAVEfmt ")
+	binary.LittleEndian.PutUint32(hdr[16:], 16) // PCM chunk size
+	binary.LittleEndian.PutUint16(hdr[20:], 1)  // PCM
+	binary.LittleEndian.PutUint16(hdr[22:], 1)  // mono
+	binary.LittleEndian.PutUint32(hdr[24:], uint32(rate))
+	binary.LittleEndian.PutUint32(hdr[28:], uint32(rate*2))
+	binary.LittleEndian.PutUint16(hdr[32:], 2)  // block align
+	binary.LittleEndian.PutUint16(hdr[34:], 16) // bits
+	copy(hdr[36:], "data")
+	binary.LittleEndian.PutUint32(hdr[40:], uint32(len(data)))
+
+	f, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	if _, err := f.Write(hdr[:]); err != nil {
+		return err
+	}
+	_, err = f.Write(data)
+	return err
+}

changelog.json

@@ -1,4 +1,42 @@
 [
+  {
+    "version": "0.26.13",
+    "date": "",
+    "en": [],
+    "fr": []
+  },
+  {
+    "version": "0.26.12",
+    "date": "",
+    "en": [
+      "When TQSL refuses an upload, the log now carries the exact ADIF record it was given and the station location it was told to sign with. 'No QSOs processed' covers several unrelated causes and the temp file is deleted the moment TQSL returns, so the one piece of evidence that mattered was the one nobody could see.",
+      "An Elecraft console for the K3/K4, in a tab of its own when the CAT backend is Elecraft or Kenwood: power, volume, RF and mic gain, squelch, preamp, attenuator, NB, NR, AGC, filter width, antenna, RIT/XIT with a clear, keyer speed, S-meter, SWR, MOX and an ATU tune. The meter scaling is marked provisional and the raw readings go to the log — it was written from the K3 Programmer's Reference without a radio to hand, and a wrongly scaled SWR bar reports a good match on a bad antenna.",
+      "Type a number in the callsign field and press Enter to move the radio: kHz for a frequency (28500 → 28.500 MHz), or a band on its own (20, 160, 6…). It is where the hands already are — reading a spot and reaching for the frequency box is what loses the station. Ambiguous numbers are read as bands, since 40 kHz and 160 kHz are nowhere anyone tunes.",
+      "Yaesu console: the mic gain is read and written on the rig's own 0-100 scale. It was treated as 0-255, so an FTDX101 set to 80 showed 38 and every attempt to move the slider was refused by the radio and sprang back.",
+      "Yaesu console: the power slider goes to 200 W on the models that make it (FTDX101MP and the like), and follows the radio if it ever reports more than expected. The slider, not the rig, was the 100 W limit.",
+      "Yaesu console: the NAR button (narrow IF filter) is shown only when the radio answers the command, and says what it is. A button that did nothing when pressed read as a fault in the rig.",
+      "The frequency readout now steps the Hz digits under the mouse wheel too, not just the kHz ones — 100, 10 and 1 Hz. Zero-beating a CW signal is a few tens of Hz, and it was the one move the display would not make.",
+      "The split-pile-up chaser only appears in CW: the marker comes from a skimmer decoding a report, so on SSB or FT8 there is nothing for it to chase.",
+      "Cluster: a single click now only fills the callsign, and a DOUBLE click works the spot — QSY, mode and the rest. Running down the list used to drag the radio along with every line looked at.",
+      "Cluster: how many spots the list keeps is now a setting (Preferences → Cluster, beside the spot lifetime). It was fixed at a thousand, and on a busy evening that fills in a couple of minutes — so the cap, not the lifetime, decided when a spot disappeared and a 15-minute lifetime never expired anything.",
+      "Elecraft console: the ATU tune sends the right switch. SWT19 is the ATU row in the K3 reference — TAP starts a tuning cycle, and a HOLD (the new ATU button) puts the tuner in line or bypasses it. It was written as SWT20, which is not an ATU switch at all. Power now takes the K3 range of 0-110 W.",
+      "Elecraft console: the mouse wheel moves the sliders, as it already did on the Flex and Yaesu consoles. Power steps 5 W a notch, the rest one unit."
+    ],
+    "fr": [
+      "Quand TQSL refuse un envoi, le journal contient désormais l'enregistrement ADIF exact qui lui a été remis et l'emplacement de station demandé pour la signature. « No QSOs processed » recouvre plusieurs causes sans rapport et le fichier temporaire est supprimé dès que TQSL rend la main : la seule pièce à conviction utile était justement invisible.",
+      "Une console Elecraft pour les K3/K4, dans un onglet dédié quand le CAT est réglé sur Elecraft ou Kenwood : puissance, volume, gain HF et micro, squelch, préampli, atténuateur, NB, NR, AGC, largeur de filtre, antenne, RIT/XIT avec effacement, vitesse du manipulateur, S-mètre, ROS, MOX et accord de l'ATU. L'échelle des mesures est signalée comme provisoire et les valeurs brutes partent dans le journal — la console a été écrite d'après le manuel de programmation du K3, sans radio sous la main, et une barre de ROS mal calibrée annonce un bon accord sur une mauvaise antenne.",
+      "Taper un nombre dans le champ indicatif puis Entrée déplace la radio : en kHz pour une fréquence (28500 → 28.500 MHz), ou une bande seule (20, 160, 6…). C'est là que sont déjà les mains — lire un spot puis aller chercher la case fréquence, c'est ce qui fait perdre la station. Les nombres ambigus sont lus comme des bandes : 40 kHz ou 160 kHz ne sont nulle part où l'on s'accorde.",
+      "Console Yaesu : le gain micro est lu et écrit sur l'échelle 0-100 de la radio. Il était traité en 0-255 : un FTDX101 réglé sur 80 affichait 38, et toute tentative de bouger le curseur était refusée par la radio et revenait en place.",
+      "Console Yaesu : le curseur de puissance monte à 200 W sur les modèles qui la sortent (FTDX101MP et consorts), et suit la radio si elle annonce davantage. C'était le curseur, pas la radio, qui plafonnait à 100 W.",
+      "Console Yaesu : le bouton NAR (filtre FI étroit) n'apparaît que si la radio répond à la commande, et indique ce qu'il fait. Un bouton sans effet passait pour une panne de la radio.",
+      "L'affichage de fréquence fait maintenant défiler aussi les chiffres des Hz à la molette, pas seulement ceux des kHz — 100, 10 et 1 Hz. Se caler au zéro-beat sur un signal CW se joue à quelques dizaines de Hz, et c'était le seul geste que l'affichage refusait.",
+      "Le chasseur de pile-up en split n'apparaît qu'en CW : le marqueur vient d'un skimmer qui décode un report, donc en SSB ou en FT8 il n'a rien à chasser.",
+      "Cluster : un clic simple ne remplit plus que l'indicatif, et le DOUBLE clic travaille le spot — QSY, mode et le reste. Parcourir la liste entraînait la radio à chaque ligne regardée.",
+      "Cluster : le nombre de spots conservés devient un réglage (Préférences → Cluster, à côté de la durée de vie). Il était fixé à mille, et un soir chargé remplit ça en quelques minutes — c'était donc le plafond, et non la durée de vie, qui décidait de la disparition d'un spot, et une durée de 15 minutes n'expirait jamais rien.",
+      "Console Elecraft : l'accord ATU envoie la bonne touche. SWT19 est la ligne ATU du manuel K3 — l'appui bref lance un cycle d'accord, et le maintien (nouveau bouton ATU) met la boîte en ligne ou la contourne. C'était écrit SWT20, qui n'est pas une touche d'ATU. La puissance suit la plage 0-110 W du K3.",
+      "Console Elecraft : la molette agit sur les curseurs, comme elle le faisait déjà sur les consoles Flex et Yaesu. La puissance avance de 5 W par cran, le reste d'une unité."
+    ]
+  },
   {
     "version": "0.26.11",
     "date": "",

frontend/package.json.md5

@@ -1 +1 @@
-f9b41e192918fa2511f68cd1b361fcd3
+704fe1bf370b669665df0606fae8a69d

frontend/src/App.tsx

@@ -78,6 +78,7 @@ import { WorldMap, LocatorMap } from '@/components/MainMap';
 import { FlexPanel } from '@/components/FlexPanel';
 import { IcomPanel } from '@/components/IcomPanel';
 import { YaesuPanel } from '@/components/YaesuPanel';
+import { ElecraftPanel } from '@/components/ElecraftPanel';
 import { AntGeniusPanel, type AGStatus } from '@/components/AntGeniusPanel';
 import { MotorAntennaWidget, type AntStatus } from '@/components/MotorAntennaWidget';
 import { TunerGeniusPanel, type TGStatus } from '@/components/TunerGeniusPanel';
@@ -94,7 +95,7 @@ import { ShutdownProgress } from '@/components/ShutdownProgress';
 import { ClusterGrid } from '@/components/ClusterGrid';
 import { cleanSpotter, inferSpotMode, spotModeCategory, spotStatusKey } from '@/lib/spot';
 import { applySpotDisplay, readSpotDisplayOptions, spotIsWorked, SPOT_DISPLAY_OPTIONS_EXPOSED } from '@/lib/spotDisplay';
-import { AnswerDecode, HaltDecodeTx, LogUIError, FlexTXOnBand, GetMatrixColors, GetRotorPresets, GetRowColors, GetSpotTTLMinutes, IsNewUSCounty } from '../wailsjs/go/main/App';
+import { AnswerDecode, HaltDecodeTx, LogUIError, FlexTXOnBand, GetMatrixColors, GetRotorPresets, GetRowColors, GetSpotTTLMinutes, GetSpotMax, IsNewUSCounty } from '../wailsjs/go/main/App';
 import { applyMatrixColors } from '@/lib/matrixColors';
 import { WorkedBeforeGrid } from '@/components/WorkedBeforeGrid';
 import { NetControlPanel } from '@/components/NetControlPanel';
@@ -243,10 +244,15 @@ function fmtFreqDots(mhzStr: string): string {
 }
 
 // FreqWheelDisplay renders a frequency (MHz string) like fmtFreqDots — MHz.kHz.Hz
-// — but makes the three kHz digits scroll-sensitive: rolling the mouse wheel over
+// — and makes the kHz AND Hz digits scroll-sensitive: rolling the wheel over a
-// the hundreds / tens / units-of-kHz digit steps the frequency by 100 / 10 / 1 kHz
+// digit steps the frequency by that digit (100/10/1 kHz, then 100/10/1 Hz; up =
-// (up = wheel up). onNudge receives the delta in Hz. The MHz and Hz digits are
+// wheel up). onNudge receives the delta in Hz.
-// static (only kHz stepping was requested). Used in the header + compact top bar.
+//
+// The Hz digits were static at first, on the grounds that only kHz stepping had
+// been asked for. An FTDX101 operator put it plainly: the fine tuning is exactly
+// what a mouse is wanted for — zero-beating a CW signal or nudging onto an SSB
+// voice is a few tens of Hz, and it was the one move the display would not make.
+// The MHz digits stay static: a wheel notch that changes band is not fine tuning.
 function FreqWheelDisplay({ mhz, onNudge, className, placeholder = '—.———.———' }: {
   mhz: string; onNudge: (deltaHz: number) => void; className?: string; placeholder?: string;
 }) {
@@ -256,6 +262,7 @@ function FreqWheelDisplay({ mhz, onNudge, className, placeholder = '—.——
   const khz = frac.slice(0, 3); // [hundreds, tens, units] of kHz
   const hz = frac.slice(3, 6);
   const stepHz = [100_000, 10_000, 1_000]; // per kHz digit: 100 / 10 / 1 kHz
+  const stepHzFine = [100, 10, 1];         // per Hz digit
   return (
     <span className={className}>
       {intPart}.
@@ -267,7 +274,15 @@ function FreqWheelDisplay({ mhz, onNudge, className, placeholder = '—.——
           {d}
         </span>
       ))}
-      .{hz}
+      .
+      {hz.split('').map((d, i) => (
+        <span key={'h' + i}
+          onWheel={(e) => { if (e.ctrlKey || e.metaKey) return; e.preventDefault(); e.stopPropagation(); onNudge(e.deltaY < 0 ? stepHzFine[i] : -stepHzFine[i]); }}
+          className="cursor-ns-resize rounded-[2px] hover:bg-primary/25 transition-colors"
+          title="Scroll to change frequency">
+          {d}
+        </span>
+      ))}
     </span>
   );
 }
@@ -291,6 +306,37 @@ function shortCatError(err?: string): string {
 }
 // bandForMHz maps a dial frequency (MHz) to its ADIF band, or '' if outside
 // every known allocation (used to auto-fill the band when the freq changes).
+// A number typed into the CALLSIGN field is a QSY, not a callsign.
+//
+// It is where the hands already are: an operator watching a cluster or a
+// spotting page reads "28500" and wants to be there, and reaching for the
+// frequency box — or worse, the mouse — is the part that loses the station. So
+// the call field takes it, on Enter, and nothing else in the entry form changes.
+//
+// Two forms, and the AMBIGUOUS ones resolve to the band deliberately. "160" is
+// the 160 m band, not 160 kHz; "40" is 40 m, not 40 kHz. Neither number is a
+// frequency anyone tunes to, so reading them as bands costs nothing and reads
+// the way an operator says it out loud.
+const ENTRY_BAND_WORDS: Record<string, string> = {
+  '2200': '2200m', '630': '630m', '160': '160m', '80': '80m', '60': '60m',
+  '40': '40m', '30': '30m', '20': '20m', '17': '17m', '15': '15m', '12': '12m',
+  '10': '10m', '6': '6m', '4': '4m', '2': '2m', '70': '70cm',
+};
+
+// entryQSYCommand reads what was typed. Returns null for anything that is not
+// unambiguously one of the two — a callsign must never be mistaken for a QSY.
+function entryQSYCommand(text: string): { band?: string; hz?: number } | null {
+  const v = text.trim();
+  if (!/^\d{1,7}$/.test(v)) return null; // digits only: a callsign has letters
+  const band = ENTRY_BAND_WORDS[v];
+  if (band) return { band };
+  const khz = Number(v);
+  // 1500 kHz to 1.3 GHz: below that is not a band anyone works, above it is a
+  // typo. A bare "500" is neither a band nor a frequency, so nothing happens.
+  if (khz >= 1500 && khz <= 1_300_000) return { hz: Math.round(khz * 1000) };
+  return null;
+}
+
 function bandForMHz(mhz: number): string {
   if (!mhz || isNaN(mhz)) return '';
   const plan: [number, number, string][] = [
@@ -701,6 +747,7 @@ export default function App() {
     '15m':  { SSB: 21300000, CW: 21030000, FT8: 21074000, FT4: 21140000, RTTY: 21080000, default: 21300000 },
     '12m':  { SSB: 24950000, CW: 24910000, FT8: 24915000, FT4: 24919000, RTTY: 24920000, default: 24950000 },
     '10m':  { SSB: 28500000, CW: 28030000, FT8: 28074000, FT4: 28180000, RTTY: 28080000, default: 28500000 },
+    '4m':   { SSB: 70200000, CW: 70100000, FT8: 70154000,                               default: 70200000 },
     '6m':   { SSB: 50150000, CW: 50080000, FT8: 50313000, FT4: 50318000,                default: 50150000 },
     '2m':   { SSB: 144300000, CW: 144050000, FT8: 144174000,                            default: 144300000 },
     '70cm': { SSB: 432300000, CW: 432050000, FT8: 432174000,                            default: 432300000 },
@@ -1616,7 +1663,14 @@ export default function App() {
   const [clusterServers, setClusterServers] = useState<{ id: number; name: string; enabled: boolean; sort_order: number }[]>([]);
   // Ring buffer — only keep the last N spots; cluster firehose can be heavy.
   const [spots, setSpots] = useState<ClusterSpot[]>([]);
-  const SPOTS_CAP = 1000;
+  // How many spots the list holds. A setting rather than a constant: at a
+  // thousand, a busy evening filled the buffer in a couple of minutes, so the
+  // spot LIFETIME never had anything left to expire — the cap was deciding the
+  // lifetime. Kept in a ref as well: the append path runs inside a state updater
+  // that must not close over a stale value.
+  const [spotsCap, setSpotsCap] = useState(1000);
+  const spotsCapRef = useRef(1000);
+  useEffect(() => { spotsCapRef.current = spotsCap; }, [spotsCap]);
   // Cluster filter selections persist across restarts (writeUiPref → localStorage
   // + DB, so they also travel with a copied data/ folder). Loaders read the cache
   // synchronously at first render; a single effect below writes them back.
@@ -1861,7 +1915,7 @@ export default function App() {
   // so it's loaded async on mount and re-read on profile:changed below.
   // 'none' is only ever stored for the third and fourth panes: the first two are
   // the Main view, and a layout with no panes at all is not a layout.
-  type MainPaneKind = 'map1' | 'map2' | 'cluster' | 'worked' | 'flex' | 'recent' | 'icom' | 'yaesu' | 'netcontrol' | 'decodes' | 'none';
+  type MainPaneKind = 'map1' | 'map2' | 'cluster' | 'worked' | 'flex' | 'recent' | 'icom' | 'yaesu' | 'elecraft' | 'netcontrol' | 'decodes' | 'none';
   const [mapZoomSignal, setMapZoomSignal] = useState(0); // bump → world map auto-zooms now
   const [mainPaneLeft, setMainPaneLeft] = useState<MainPaneKind>('map1');
   const [mainPaneRight, setMainPaneRight] = useState<MainPaneKind>('map2');
@@ -1872,7 +1926,7 @@ export default function App() {
   // quarter-width map is unreadable.
   const [mainLayout4, setMainLayout4] = useState<'cols' | 'quad'>('quad');
   const loadMainPanes = useCallback(async () => {
-    const valid = (v: string): v is MainPaneKind => v === 'map1' || v === 'map2' || v === 'cluster' || v === 'worked' || v === 'flex' || v === 'recent' || v === 'icom' || v === 'yaesu' || v === 'netcontrol' || v === 'decodes';
+    const valid = (v: string): v is MainPaneKind => v === 'map1' || v === 'map2' || v === 'cluster' || v === 'worked' || v === 'flex' || v === 'recent' || v === 'icom' || v === 'yaesu' || v === 'elecraft' || v === 'netcontrol' || v === 'decodes';
     const [l, r, p3, p4, lay] = await Promise.all([
       GetUIPref('mainPaneLeft').catch(() => ''),
       GetUIPref('mainPaneRight').catch(() => ''),
@@ -1930,7 +1984,7 @@ export default function App() {
   useEffect(() => {
     setSpotStatus((prev) => {
       const keys = Object.keys(prev);
-      if (keys.length <= SPOTS_CAP * 2) return prev;
+      if (keys.length <= spotsCapRef.current * 2) return prev;
       const live = new Set(spots.map((x) => spotStatusKey(x.dx_call, x.band ?? '', x.comment ?? '', x.freq_hz)));
       // Decoded stations count as live too. They share this cache, and pruning
       // to the cluster spots alone would evict every one of them — on a busy
@@ -2441,6 +2495,9 @@ export default function App() {
   // same thing everywhere — and it gives the memory back.
   const [spotTTLMin, setSpotTTLMin] = useState(0);
   useEffect(() => { GetSpotTTLMinutes().then(setSpotTTLMin).catch(() => {}); }, [showSettings]);
+  // Same beat as the lifetime: re-read when Preferences closes, since the two
+  // settings decide between them how long a spot survives.
+  useEffect(() => { GetSpotMax().then((n: number) => { if (n > 0) setSpotsCap(n); }).catch(() => {}); }, [showSettings]);
   useEffect(() => {
     if (spotTTLMin <= 0) return; // 0 = keep until the count cap pushes them out
     const sweep = () => {
@@ -3112,6 +3169,19 @@ export default function App() {
   // Clicking a spot (cluster grid or any band map): tune the rig, set the mode,
   // fill the call, pre-fill POTA, (re)start the recording. Shared so every spot
   // source behaves identically.
+  // Single click on a cluster line: fill the callsign, nothing else.
+  //
+  // Reading the cluster means running down dozens of lines, and while a single
+  // click WORKED the spot every pass dragged the radio with it — one stray click
+  // while looking took the operator off the station they were working. Looking
+  // and going are two different intentions, so they are now two gestures: click
+  // to look the call up, double-click to go there.
+  function handleSpotSelect(s: any) {
+    if (!s?.dx_call?.trim()) return;
+    onCallsignInput(s.dx_call, { force: true });
+    applySpotPOTA((s as any).pota_ref);
+  }
+
   function handleSpotClick(s: any) {
     const m = inferSpotMode(s.comment ?? '', s.freq_hz);
     // Reflect the spot's freq/band in the entry strip IMMEDIATELY (optimistic),
@@ -3418,7 +3488,8 @@ export default function App() {
           const filtered = hist(sp) ? next : next.filter((x) => hist(x) || key(x) !== k);
           next = [sp, ...filtered];
         }
-        return next.length > SPOTS_CAP ? next.slice(0, SPOTS_CAP) : next;
+        const cap = spotsCapRef.current;
+        return next.length > cap ? next.slice(0, cap) : next;
       });
     };
     const unsubSpot = EventsOn('cluster:spot', (sp: ClusterSpot) => {
@@ -5468,6 +5539,25 @@ export default function App() {
     noteManualEdit();
     SetCATFrequency(Math.round(mhz * 1_000_000)).catch(() => {});
   };
+  // Carry out what was typed in the call field. Bands go through the ordinary
+  // band change, so the antennas, the power table and the outbound integrations
+  // all hear about it exactly as they would from the dropdown.
+  const applyEntryQSY = (q: { band?: string; hz?: number }) => {
+    if (q.band) {
+      onBandUserChange(q.band);
+      showToast(q.band);
+      return;
+    }
+    const hz = q.hz ?? 0;
+    if (hz <= 0) return;
+    noteManualEdit();
+    setFreqMhz((hz / 1_000_000).toFixed(6));
+    const b = bandForMHz(hz / 1_000_000);
+    if (b) setBand(b);
+    if (catState.enabled && catState.connected) SetCATFrequency(hz).catch(() => {});
+    showToast((hz / 1_000_000).toFixed(3) + ' MHz');
+  };
+
   // Mouse-wheel over a kHz digit of the top frequency readout: step the frequency
   // and (if CAT is connected) QSY the rig. The display updates optimistically on
   // every notch; the actual radio tune is debounced so a fast scroll doesn't flood
@@ -6008,7 +6098,7 @@ export default function App() {
             </div>
             <div className="flex-1 min-h-0 flex">
               <div className="flex-1 min-w-0 flex flex-col min-h-0">
-                <ClusterGrid key={`clg-${activeProfileId ?? 'x'}`} rows={clusterRenderedRows as any} spotStatus={spotStatus} onSpotClick={handleSpotClick} />
+                <ClusterGrid key={`clg-${activeProfileId ?? 'x'}`} rows={clusterRenderedRows as any} spotStatus={spotStatus} onSpotClick={handleSpotClick} onSpotSelect={handleSpotSelect} />
               </div>
               {clusterShowFilters && renderClusterFilters()}
             </div>
@@ -6037,6 +6127,12 @@ export default function App() {
             <YaesuPanel onReportRST={(r) => { setRstSent(r); rstUserEditedRef.current = true; }} onKeySpeed={setCWSpeedEverywhere} />
           </div>
         );
+      case 'elecraft':
+        return (
+          <div className="h-full w-full min-h-0 rounded-lg overflow-hidden border border-border">
+            <ElecraftPanel onReportRST={(r) => { setRstSent(r); rstUserEditedRef.current = true; }} />
+          </div>
+        );
       case 'icom':
         return (
           <div className="h-full w-full min-h-0 rounded-lg overflow-hidden border border-border">
@@ -6828,6 +6924,16 @@ export default function App() {
         onKeyDown={(e) => {
           if (e.key === 'Enter' && (e.target as HTMLElement).tagName === 'INPUT') {
             e.preventDefault();
+            // A number in the call field is a QSY. Checked BEFORE ESM and before
+            // logging: both would otherwise act on a "callsign" of 28500.
+            if (e.target === callsignRef.current) {
+              const q = entryQSYCommand(callsignRef.current?.value ?? '');
+              if (q) {
+                applyEntryQSY(q);
+                setCallsign(''); // the field goes back to what it is for
+                return;
+              }
+            }
             // ESM (Enter Sends Message): fire the stage-appropriate CW macro instead
             // of logging. Falls through to the normal log when ESM isn't active.
             if (esmHandleEnter(e.target as HTMLElement)) return;
@@ -7303,6 +7409,7 @@ export default function App() {
               {catState.backend === 'flex' && <TabsTrigger value="flex">Flex Console</TabsTrigger>}
               {catState.backend === 'icom' && <TabsTrigger value="icom">Icom Console</TabsTrigger>}
               {catState.backend === 'yaesu' && <TabsTrigger value="yaesu">Yaesu Console</TabsTrigger>}
+            {(catState.backend === 'elecraft' || catState.backend === 'kenwood') && <TabsTrigger value="elecraft">{t('k3.console')}</TabsTrigger>}
               {statsTabOpen && (
                 <TabsTrigger value="stats" className="gap-1.5">
                   {t('stats.tab')}
@@ -7669,6 +7776,7 @@ export default function App() {
                     rows={rendered as any}
                     spotStatus={spotStatus}
                     onSpotClick={handleSpotClick}
+                    onSpotSelect={handleSpotSelect}
                   />
                 );
               })()}
@@ -7982,6 +8090,14 @@ export default function App() {
               </TabsContent>
             )}
 
+            {/* Elecraft K3/K4 console. Shown for the Kenwood backend too: the
+                K3 speaks that dialect and the panel reads whatever answers. */}
+            {(catState.backend === 'elecraft' || catState.backend === 'kenwood') && (
+              <TabsContent value="elecraft" className="flex-1 min-h-0 p-0">
+                <ElecraftPanel onReportRST={(r) => { setRstSent(r); rstUserEditedRef.current = true; }} />
+              </TabsContent>
+            )}
+
             {catState.backend === 'icom' && (
               <TabsContent value="icom" className="flex-1 min-h-0 p-0">
                 <IcomPanel isNetwork={catBackend === 'icom-net'} onReportRST={(r) => { setRstSent(r); rstUserEditedRef.current = true; }} />

frontend/src/components/ClusterGrid.tsx

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import {
   AllCommunityModule, ModuleRegistry,
-  type ColDef, type ColumnState, type GridReadyEvent, type RowClickedEvent,
+  type ColDef, type ColumnState, type GridReadyEvent, type RowClickedEvent, type RowDoubleClickedEvent,
 } from 'ag-grid-community';
 import { hamlogGridTheme } from '@/lib/gridTheme';
 import { AgGridReact } from 'ag-grid-react';
@@ -75,7 +75,13 @@ export type SpotStatusEntry = {
 type Props = {
   rows: ClusterSpot[];
   spotStatus: Record<string, SpotStatusEntry>;
+  // A DOUBLE click works the spot: QSY, mode, callsign, the lot.
   onSpotClick?: (s: ClusterSpot) => void;
+  // A SINGLE click only fills the callsign. Reading the cluster means passing
+  // over dozens of lines, and every pass used to drag the radio with it — one
+  // stray click while looking took the operator off the station they were
+  // working. Looking and going are now two different gestures.
+  onSpotSelect?: (s: ClusterSpot) => void;
 };
 
 const COL_STATE_KEY = 'hamlog.clusterColState.v1';
@@ -500,7 +506,7 @@ const GROUP_ORDER = ['Spot', 'Geo'];
 const CLG_GRP_KEYS: Record<string, string> = { Spot: 'clg2.grpSpot', Geo: 'clg2.grpGeo' };
 const groupLabel = (t: TFn, g: string): string => t(CLG_GRP_KEYS[g] ?? g);
 
-export function ClusterGrid({ rows, spotStatus, onSpotClick }: Props) {
+export function ClusterGrid({ rows, spotStatus, onSpotClick, onSpotSelect }: Props) {
   const { t } = useI18n();
   const gridRef = useRef<any>(null);
   const [pickerOpen, setPickerOpen] = useState(false);
@@ -583,6 +589,10 @@ export function ClusterGrid({ rows, spotStatus, onSpotClick }: Props) {
   }, []);
 
   function handleRowClicked(e: RowClickedEvent<ClusterSpot>) {
+    if (e.data && onSpotSelect) onSpotSelect(e.data);
+  }
+
+  function handleRowDoubleClicked(e: RowDoubleClickedEvent<ClusterSpot>) {
     if (e.data && onSpotClick) onSpotClick(e.data);
   }
 
@@ -647,6 +657,7 @@ export function ClusterGrid({ rows, spotStatus, onSpotClick }: Props) {
             onColumnVisible={saveColumnState}
             onSortChanged={saveColumnState}
             onRowClicked={handleRowClicked}
+            onRowDoubleClicked={handleRowDoubleClicked}
             animateRows={false}
             suppressCellFocus
             getRowId={(p) => `${(p.data as any).received_at}-${(p.data as any).dx_call}-${(p.data as any).source_id}`}

frontend/src/components/ElecraftPanel.tsx

@@ -0,0 +1,314 @@
+import { useEffect, useRef, useState } from 'react';
+import { Radio, Power, Activity, AudioLines, SlidersHorizontal } from 'lucide-react';
+import {
+  GetKenwoodState, RefreshKenwood, SetKenwoodPower, SetKenwoodAFGain, SetKenwoodTX, TuneKenwoodATU,
+  SetKenwoodRFGain, SetKenwoodMicGain, SetKenwoodSquelch, SetKenwoodPreamp, SetKenwoodAtt,
+  SetKenwoodNB, SetKenwoodNR, SetKenwoodAGC, SetKenwoodFilter, SetKenwoodAntenna,
+  SetKenwoodRIT, SetKenwoodXIT, ClearKenwoodRIT, SetKenwoodKeySpeed, ToggleKenwoodATU,
+  GetCATState,
+} from '../../wailsjs/go/main/App';
+import { cn } from '@/lib/utils';
+import { useI18n } from '@/lib/i18n';
+import { sMeterRST } from '@/lib/rst';
+import { MeterBar } from '@/components/MeterBar';
+import { WheelRange } from '@/components/WheelRange';
+
+type KenwoodState = {
+  available: boolean; model?: string; elecraft: boolean; mode?: string;
+  transmitting: boolean; split: boolean; split_tx_hz?: number;
+  s_meter: number; s_meter_raw: number;
+  power_meter: number; swr: number; swr_raw: number;
+  rf_power: number; af_gain: number; rf_gain: number; mic_gain: number; squelch: number;
+  preamp: boolean; att: boolean; nb: boolean; nr: boolean; agc?: string;
+  filter_hz: number; antenna: number; rit: boolean; xit: boolean; key_speed: number;
+  meters_provisional: boolean;
+};
+
+const ZERO: KenwoodState = {
+  available: false, elecraft: false, transmitting: false, split: false,
+  s_meter: 0, s_meter_raw: 0, power_meter: 0, swr: 0, swr_raw: 0,
+  rf_power: 0, af_gain: 0, rf_gain: 0, mic_gain: 0, squelch: 0,
+  preamp: false, att: false, nb: false, nr: false,
+  filter_hz: 0, antenna: 0, rit: false, xit: false, key_speed: 0,
+  meters_provisional: true,
+};
+
+// Filter widths worth a button. CW work happens at 200-500 Hz, SSB at 2.4-2.8
+// kHz; the rest of the range is reachable from the radio's own knob, and a
+// panel offering thirty widths is slower to use than the knob it replaces.
+const FILTERS = [200, 400, 700, 1000, 1800, 2400, 2800];
+
+// Raw S-meter → S units. The K3 answers 0-21 across S0…S9+60; S9 is taken at
+// raw 9 and each step above it as 6 dB. PROVISIONAL, like the rest of the
+// scaling: the raw value is on screen and in the log, so a real radio settles
+// it rather than this comment.
+const S9_RAW = 9;
+const DB_PER_RAW = 6;
+function sParts(rawV: number): { s: number; over: number; label: string } {
+  if (rawV >= S9_RAW) {
+    const over = Math.max(0, Math.round((rawV - S9_RAW) * DB_PER_RAW));
+    return { s: 9, over, label: over > 0 ? `S9+${over}` : 'S9' };
+  }
+  const s = Math.max(0, Math.min(9, rawV));
+  return { s, over: 0, label: `S${s}` };
+}
+
+// Segment colour, printed the way a radio's own meter is: green up to S9, amber
+// through the S9+ range, red once the signal would be reported as 59+20 or more.
+function sSegColor(frac: number) {
+  if (frac > 0.78) return '#dc2626';
+  if (frac > 0.55) return '#f59e0b';
+  return '#16a34a';
+}
+
+// The card shell the Yaesu and Icom consoles use, so the three read alike.
+function Card({ icon: Icon, title, children }: { icon: any; title: string; children: React.ReactNode }) {
+  return (
+    <div className="rounded-xl border border-border bg-card shadow-sm overflow-hidden">
+      <div className="flex items-center gap-2 px-3 py-2 border-b border-border/60 bg-muted/30">
+        <Icon className="size-4 text-primary" />
+        <span className="text-xs font-bold uppercase tracking-wider text-foreground/80">{title}</span>
+      </div>
+      <div className="p-3 space-y-3">{children}</div>
+    </div>
+  );
+}
+
+// One button shape for every on/off control, so the panel reads as one
+// instrument instead of a collection of differently-styled switches.
+function Toggle({ label, on, off, onClick }: { label: string; on: boolean; off: boolean; onClick: () => void }) {
+  return (
+    <button type="button" disabled={off} onClick={onClick}
+      className={cn('px-2 py-1 rounded-md text-[11px] font-bold tracking-wide border transition-all disabled:opacity-30',
+        on ? 'bg-primary text-primary-foreground border-primary' : 'bg-card text-muted-foreground border-border hover:border-primary/60')}>
+      {label}
+    </button>
+  );
+}
+
+export function ElecraftPanel({ onReportRST }: { onReportRST?: (rst: string) => void }) {
+  const { t } = useI18n();
+  const [st, setSt] = useState<KenwoodState>(ZERO);
+  const [freqHz, setFreqHz] = useState(0);
+  const [err, setErr] = useState('');
+  // Optimistic overlay: a slider must follow the finger, not the poll. Dropped
+  // once the radio has had time to answer with the value it actually took.
+  const [local, setLocal] = useState<{ rf_power?: number; af_gain?: number; rf_gain?: number; mic_gain?: number; squelch?: number; key_speed?: number }>({});
+  const localAtRef = useRef(0);
+
+  useEffect(() => {
+    let alive = true;
+    const tick = async () => {
+      try {
+        const s = (await GetKenwoodState()) as KenwoodState;
+        const c = (await GetCATState()) as any;
+        if (!alive) return;
+        setSt(s);
+        setFreqHz(c?.split && c?.freq_rx_hz > 0 ? c.freq_rx_hz : (c?.freq_hz ?? 0));
+        if (Date.now() - localAtRef.current > 1200) setLocal({});
+        setErr('');
+      } catch (e: any) {
+        if (alive) setErr(String(e?.message ?? e));
+      }
+    };
+    tick();
+    const id = window.setInterval(tick, 500);
+    return () => { alive = false; window.clearInterval(id); };
+  }, []);
+
+  const view = { ...st, ...local };
+  const off = !st.available;
+
+  const setErrMsg = (e: any) => setErr(String(e?.message ?? e));
+
+  const put = (patch: typeof local, run: () => Promise<any>) => {
+    setLocal((p) => ({ ...p, ...patch }));
+    localAtRef.current = Date.now();
+    run().catch((e) => setErr(String(e?.message ?? e)));
+  };
+
+  return (
+    <div className="h-full min-h-0 overflow-auto bg-background">
+      {/* Same wrapper as the Yaesu, Icom and Flex consoles: capped width and
+          CENTRED. A console stretched across a 2000 px window puts a slider a
+          hand's width from its own label, and the panel stops reading as one
+          instrument. */}
+      <div className="max-w-5xl mx-auto p-3 space-y-3">
+      {/* VFO + status */}
+      <div className="rounded-xl border border-border bg-card shadow-sm px-4 py-3 flex items-center justify-between gap-3 flex-wrap">
+        <div>
+          <div className="text-[10px] font-bold uppercase tracking-wider text-muted-foreground flex items-center gap-1.5">
+            <Radio className="size-3.5" />
+            {st.elecraft ? 'Elecraft' : 'Kenwood'} {st.model}
+            <span className={cn('size-2 rounded-full', off ? 'bg-muted-foreground/40' : 'bg-success')} />
+          </div>
+          <div className="text-2xl font-mono tabular-nums font-bold">
+            {freqHz > 0 ? (freqHz / 1e6).toFixed(6) : '—'}
+          </div>
+        </div>
+        <button type="button" className="text-[11px] text-muted-foreground hover:text-foreground flex items-center gap-1"
+          onClick={() => RefreshKenwood().catch(() => {})} title={t('k3.refreshHint')}>
+          <SlidersHorizontal className="size-3.5" />
+        </button>
+      </div>
+
+      {off && <div className="text-xs text-muted-foreground px-1">{t('k3.waiting')}</div>}
+      {!!err && <div className="text-[11px] text-danger px-1">{err}</div>}
+
+      {/* Meters */}
+      <Card icon={Activity} title={t('k3.meters')}>
+      <div className="grid grid-cols-1 sm:grid-cols-3 gap-2">
+        <MeterBar label="S-METER" value={view.transmitting ? 0 : view.s_meter} lo={0} hi={100}
+          accent="#16a34a" segColor={sSegColor}
+          display={view.transmitting ? '—' : sParts(view.s_meter_raw).label}
+          onClick={() => {
+            if (view.transmitting || !onReportRST) return;
+            const sp = sParts(view.s_meter_raw);
+            onReportRST(sMeterRST(sp.s, sp.over, view.mode));
+          }}
+          title={t('k3.sMeterHint', { raw: String(view.s_meter_raw) })} />
+        <MeterBar label="PWR" value={view.transmitting ? view.power_meter : 0} lo={0} hi={100} accent="#0ea5e9" />
+        {/* 0 means "not measured", and it must not render as a perfect 1.0:
+            a match that looks ideal on an antenna nobody has measured is the one
+            reading that can cost a radio. */}
+        <MeterBar label="SWR" value={view.transmitting && view.swr > 0 ? view.swr : 1} lo={1} hi={4}
+          accent="#f59e0b"
+          display={view.transmitting && view.swr > 0 ? view.swr.toFixed(1) : '—'} />
+      </div>
+      {view.meters_provisional && (
+        <p className="text-[10px] text-muted-foreground">{t('k3.provisional')}</p>
+      )}
+      </Card>
+
+      {/* MOX + TUNE */}
+      <div className="flex items-center gap-2">
+        <button type="button" disabled={off}
+          onClick={() => SetKenwoodTX(!view.transmitting).catch((e) => setErr(String(e?.message ?? e)))}
+          className={cn('flex-1 px-3 py-2.5 rounded-lg text-sm font-extrabold tracking-wide border-2 transition-all disabled:opacity-30',
+            view.transmitting
+              ? 'bg-danger text-danger-foreground border-danger shadow-[0_0_14px] shadow-danger/50'
+              : 'bg-card text-danger border-danger hover:bg-danger-muted')}>
+          <Power className="size-4 inline mr-1 -mt-0.5" /> MOX
+        </button>
+        <button type="button" disabled={off}
+          onClick={() => TuneKenwoodATU().catch((e) => setErr(String(e?.message ?? e)))}
+          title={t('k3.tuneHint')}
+          className="flex-1 px-3 py-2.5 rounded-lg text-sm font-extrabold tracking-wide border-2 border-warning text-warning bg-card hover:bg-warning-muted transition-all disabled:opacity-30">
+          <Activity className="size-4 inline mr-1 -mt-0.5" /> TUNE
+        </button>
+        {/* The HOLD of the same switch: tuner in line or bypassed. Two buttons
+            because they are two things on the radio — tuning is a cycle you
+            start, bypassing is a state you leave it in. */}
+        <button type="button" disabled={off}
+          onClick={() => ToggleKenwoodATU().catch(setErrMsg)}
+          title={t('k3.atuHint')}
+          className="px-3 py-2.5 rounded-lg text-sm font-extrabold tracking-wide border-2 border-border text-muted-foreground bg-card hover:bg-muted transition-all disabled:opacity-30">
+          ATU
+        </button>
+      </div>
+
+      {/* Levels — two columns, so a slider stays beside the label it belongs to
+          instead of running the width of the window. */}
+      <Card icon={SlidersHorizontal} title={t('k3.levels')}>
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-x-6 gap-y-2">
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground">{t('k3.power')}</span>
+          <WheelRange min={0} max={110} step={5} disabled={off}
+            value={view.rf_power ?? 0}
+            onChange={(n) => put({ rf_power: n }, () => SetKenwoodPower(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.rf_power ?? 0} W</span>
+        </label>
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground flex items-center gap-1">
+            <AudioLines className="size-3.5" /> {t('k3.volume')}
+          </span>
+          <WheelRange min={0} max={100} disabled={off}
+            value={view.af_gain ?? 0}
+            onChange={(n) => put({ af_gain: n }, () => SetKenwoodAFGain(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.af_gain ?? 0}</span>
+        </label>
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground">{t('k3.rfGain')}</span>
+          <WheelRange min={0} max={100} disabled={off}
+            value={view.rf_gain ?? 0}
+            onChange={(n) => put({ rf_gain: n }, () => SetKenwoodRFGain(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.rf_gain ?? 0}</span>
+        </label>
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground">{t('k3.micGain')}</span>
+          <WheelRange min={0} max={100} disabled={off}
+            value={view.mic_gain ?? 0}
+            onChange={(n) => put({ mic_gain: n }, () => SetKenwoodMicGain(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.mic_gain ?? 0}</span>
+        </label>
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground">{t('k3.squelch')}</span>
+          <WheelRange min={0} max={100} disabled={off}
+            value={view.squelch ?? 0}
+            onChange={(n) => put({ squelch: n }, () => SetKenwoodSquelch(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.squelch ?? 0}</span>
+        </label>
+        {/* CW keyer speed — the radio's own keyer, the one the K3 sends with. */}
+        <label className="flex items-center gap-2 text-xs">
+          <span className="w-16 shrink-0 text-muted-foreground">{t('k3.keySpeed')}</span>
+          <WheelRange min={8} max={50} disabled={off}
+            value={view.key_speed || 20}
+            onChange={(n) => put({ key_speed: n }, () => SetKenwoodKeySpeed(n))} />
+          <span className="w-12 text-right font-mono tabular-nums">{view.key_speed || 0} wpm</span>
+        </label>
+      </div>
+      </Card>
+
+      {/* Receive chain. Toggles, because that is what they are on the radio:
+          one press each, and the state comes back from the rig rather than from
+          what the button was asked to do. */}
+      <Card icon={AudioLines} title={t('k3.receive')}>
+      <div className="space-y-2">
+        <div className="flex flex-wrap items-center gap-1.5">
+          <Toggle label="PRE" on={view.preamp} off={off} onClick={() => SetKenwoodPreamp(!view.preamp).catch(setErrMsg)} />
+          <Toggle label="ATT" on={view.att} off={off} onClick={() => SetKenwoodAtt(!view.att).catch(setErrMsg)} />
+          <Toggle label="NB" on={view.nb} off={off} onClick={() => SetKenwoodNB(!view.nb).catch(setErrMsg)} />
+          <Toggle label="NR" on={view.nr} off={off} onClick={() => SetKenwoodNR(!view.nr).catch(setErrMsg)} />
+          <span className="w-2" />
+          {['OFF', 'SLOW', 'FAST'].map((a) => (
+            <Toggle key={a} label={a} on={(view.agc || '').toUpperCase() === a} off={off}
+              onClick={() => SetKenwoodAGC(a).catch(setErrMsg)} />
+          ))}
+        </div>
+
+        {/* RIT / XIT. Clear zeroes both offsets at once — the radio's own RC,
+            and what an operator means by "clear it". */}
+        <div className="flex flex-wrap items-center gap-1.5">
+          <Toggle label="RIT" on={view.rit} off={off} onClick={() => SetKenwoodRIT(!view.rit).catch(setErrMsg)} />
+          <Toggle label="XIT" on={view.xit} off={off} onClick={() => SetKenwoodXIT(!view.xit).catch(setErrMsg)} />
+          <Toggle label={t('k3.clear')} on={false} off={off} onClick={() => ClearKenwoodRIT().catch(setErrMsg)} />
+          {/* Antenna only when the radio answered AN — a K3 without the internal
+              ATU has one socket and no switch to offer. */}
+          {view.antenna > 0 && (<>
+            <span className="w-2" />
+            <span className="text-[10px] uppercase tracking-wider text-muted-foreground">{t('k3.antenna')}</span>
+            {[1, 2].map((n) => (
+              <Toggle key={n} label={'ANT' + n} on={view.antenna === n} off={off}
+                onClick={() => SetKenwoodAntenna(n).catch(setErrMsg)} />
+            ))}
+          </>)}
+        </div>
+
+        {/* Filter width */}
+        <div className="flex flex-wrap items-center gap-1.5">
+          <span className="text-[10px] uppercase tracking-wider text-muted-foreground">{t('k3.filter')}</span>
+          {FILTERS.map((hz) => (
+            <Toggle key={hz} label={hz >= 1000 ? (hz / 1000).toFixed(1) + 'k' : String(hz)}
+              on={view.filter_hz === hz} off={off}
+              onClick={() => SetKenwoodFilter(hz).catch(setErrMsg)} />
+          ))}
+          {view.filter_hz > 0 && (
+            <span className="text-[10px] font-mono text-muted-foreground">{view.filter_hz} Hz</span>
+          )}
+        </div>
+      </div>
+      </Card>
+      </div>
+    </div>
+  );
+}

frontend/src/components/FlexPanel.tsx

@@ -677,6 +677,10 @@ export function FlexPanel({ onCWSpeed, onReportRST }: { onCWSpeed?: (wpm: number
                   in the log, which is done mid-QSO with one hand. The offset
                   sits beside it because it is the one number retuned while
                   chasing — everything else about the feature is configured once. */}
+              {/* CW ONLY. The marker comes from a skimmer decoding a CW report,
+                  so on SSB or FT8 there is nothing to chase — and a switch that
+                  cannot fire is an invitation to wonder why it does nothing. */}
+              {isCW && (<>
               <button type="button" disabled={off}
                 title={t('flxp.rstChaseHint', { m: rstChase.markers })}
                 onContextMenu={(e) => { e.preventDefault(); setRstChaseEditing(true); }}
@@ -725,6 +729,7 @@ export function FlexPanel({ onCWSpeed, onReportRST }: { onCWSpeed?: (wpm: number
                   Hz
                 </label>
               )}
+              </>)}
               {st.split && !!st.tx_freq_hz && (
                 <span className="text-[11px] font-mono text-muted-foreground whitespace-nowrap">
                   TX {(st.tx_freq_hz / 1e6).toFixed(3)}

frontend/src/components/SettingsModal.tsx

@@ -58,7 +58,7 @@ import {
   GetFolderSync, SaveFolderSync, PickFolderSyncFolder, GetFolderSyncStatus, SyncFolderNow,
   GetRelayAuto, SaveRelayAuto, GetStationDevices,
   GetAwardDefs, GetTrackedAwards, SaveTrackedAwards,
-  GetBandOpenSettings, SaveBandOpenSettings, GetGridScopeSettings, SaveGridScopeSettings, GetPSKReporterStatus, GetChaseNewGrids, SetChaseNewGrids, GetChaseNew, SetChaseNew, GetGridCacheStatus, GetLinkedAmps, SetLinkedAmps, GetSpotTTLMinutes, SetSpotTTLMinutes,
+  GetBandOpenSettings, SaveBandOpenSettings, GetGridScopeSettings, SaveGridScopeSettings, GetPSKReporterStatus, GetChaseNewGrids, SetChaseNewGrids, GetChaseNew, SetChaseNew, GetGridCacheStatus, GetLinkedAmps, SetLinkedAmps, GetSpotTTLMinutes, SetSpotTTLMinutes, GetSpotMax, SetSpotMax, StartTCIAudio, StopTCIAudio, GetTCIAudioStatus, RecordTCIAudio, GetTCIRecordAudio, SetTCIRecordAudio,
 } from '../../wailsjs/go/main/App';
 import type { profile as profileModels } from '../../wailsjs/go/models';
 import type { LookupSettingsForm, StationSettingsForm, ListsSettingsForm, ModePresetForm } from '@/types';
@@ -1942,6 +1942,21 @@ export function SettingsModal({ onClose, onSaved, initialSection, onMainPaneChan
   const [chaseNew, setChaseNew] = useState(false);
   const [spotTTL, setSpotTTL] = useState(0);
   const [spotTTLText, setSpotTTLText] = useState('0');
+  const [spotMaxText, setSpotMaxText] = useState('1000');
+  // TCI receive-audio test bench. Polled only while the stream is open: a panel
+  // that asks the backend twice a second for a stream nobody started is work
+  // done for nothing.
+  const [tciAudio, setTciAudio] = useState<any>({ running: false, sample_rate: 0, frames: 0, peak_db: -99 });
+  const [tciRecBusy, setTciRecBusy] = useState(false);
+  // Whether the QSO recorder takes its audio from the radio's own stream.
+  const [tciRec, setTciRec] = useState(false);
+  useEffect(() => { GetTCIRecordAudio().then((v: boolean) => setTciRec(!!v)).catch(() => {}); }, []);
+  const [tciRecPath, setTciRecPath] = useState('');
+  useEffect(() => {
+    if (!tciAudio.running) return;
+    const id = window.setInterval(() => { GetTCIAudioStatus().then(setTciAudio).catch(() => {}); }, 500);
+    return () => window.clearInterval(id);
+  }, [tciAudio.running]);
   const [gridStat, setGridStat] = useState<any>(null);
   const [pskrStatus, setPskrStatus] = useState<any>(null);
   const saveBandOpen = async (next: any) => {
@@ -1955,6 +1970,7 @@ export function SettingsModal({ onClose, onSaved, initialSection, onMainPaneChan
       try { setChaseNew(await GetChaseNew()); } catch { /* defaults stand */ }
       try { setLinkedAmps((await GetLinkedAmps()) ?? []); } catch { /* defaults stand */ }
       try { const n = await GetSpotTTLMinutes(); setSpotTTL(n); setSpotTTLText(String(n)); } catch { /* defaults stand */ }
+      try { const n = await GetSpotMax(); setSpotMaxText(String(n)); } catch { /* defaults stand */ }
     })();
     // Poll the feed while the panel is open: a live count is the only thing that
     // distinguishes "connected" from "connected and receiving nothing".
@@ -4973,6 +4989,28 @@ export function SettingsModal({ onClose, onSaved, initialSection, onMainPaneChan
                 }} />
               <span className="text-xs text-muted-foreground">{t('clu.spotTtlHint')}</span>
             </div>
+            {/* The list size, beside the lifetime because between them they decide
+                the same thing: whichever runs out first removes the spot. */}
+            <div className="flex items-center gap-3 flex-wrap">
+              <span className="text-sm">{t('clu.spotMax')}</span>
+              <div className="inline-flex rounded-md border border-border overflow-hidden text-xs">
+                {[500, 1000, 2500, 5000].map((v) => (
+                  <button key={v} type="button"
+                    onClick={() => { setSpotMaxText(String(v)); SetSpotMax(v).catch(() => {}); }}
+                    className={cn('px-2.5 py-1.5 font-medium', Number(spotMaxText) === v ? 'bg-primary text-primary-foreground' : 'text-muted-foreground hover:bg-muted')}>
+                    {v}
+                  </button>
+                ))}
+              </div>
+              <Input className="h-8 w-24" value={spotMaxText}
+                onChange={(e) => {
+                  const raw = e.target.value.replace(/[^0-9]/g, '');
+                  setSpotMaxText(raw);
+                  const n = parseInt(raw, 10);
+                  if (Number.isFinite(n) && n > 0) SetSpotMax(Math.min(10000, n)).catch(() => {});
+                }} />
+              <span className="text-xs text-muted-foreground">{t('clu.spotMaxHint')}</span>
+            </div>
           </div>
 
           <div className="border-t border-border/60 pt-3 space-y-2">
@@ -6518,6 +6556,62 @@ export function SettingsModal({ onClose, onSaved, initialSection, onMainPaneChan
             <strong>{t('aud.fromRadioShort')}</strong> {t('aud.explainFrom')}{' '}
             <strong>{t('aud.toRadioShort')}</strong> {t('aud.explainTo')}
           </p>
+
+          {/* TCI receive audio — EXPERIMENTAL, and the panel says so.
+              A SunSDR already carries its receive audio on the WebSocket that
+              carries its commands, so none of the devices above need to exist
+              for it: no virtual cable, no second sound card. This is the test
+              bench for that path — it opens the stream and reports what really
+              arrives, because "the stream is open" and "audio is arriving" are
+              different claims and only the second one is worth anything. */}
+          <div className="rounded-md border border-border p-3 space-y-2">
+            <div className="text-xs font-medium">{t('aud.tciTitle')}</div>
+            <div className="flex items-center gap-3 flex-wrap">
+              <Button variant={tciAudio.running ? 'default' : 'outline'} size="sm" className="h-8"
+                onClick={() => {
+                  const p = tciAudio.running ? StopTCIAudio() : StartTCIAudio(0, 48000);
+                  p.then(() => GetTCIAudioStatus().then(setTciAudio))
+                   .catch((e: any) => setTciAudio((s: any) => ({ ...s, last_err: String(e?.message ?? e) })));
+                }}>
+                {tciAudio.running ? t('aud.tciStop') : t('aud.tciStart')}
+              </Button>
+              {tciAudio.running && (
+                <span className="text-[11px] font-mono text-muted-foreground">
+                  {tciAudio.sample_rate || 0} Hz · {tciAudio.frames || 0} frames ·{' '}
+                  {tciAudio.peak_db > -90 ? tciAudio.peak_db.toFixed(1) + ' dBFS' : t('aud.tciSilent')}
+                </span>
+              )}
+            </div>
+            {/* The test that actually settles it. Frames arriving proves a
+                socket is delivering bytes; it says nothing about whether those
+                bytes are the receiver's audio, at the right rate, in the right
+                order. A file the operator can PLAY says all three at once. */}
+            {tciAudio.running && (
+              <div className="flex items-center gap-3 flex-wrap">
+                <Button variant="outline" size="sm" className="h-8" disabled={tciRecBusy}
+                  onClick={() => {
+                    setTciRecBusy(true); setTciRecPath('');
+                    RecordTCIAudio(10)
+                      .then((p: string) => setTciRecPath(p))
+                      .catch((e: any) => setTciAudio((s: any) => ({ ...s, last_err: String(e?.message ?? e) })))
+                      .finally(() => setTciRecBusy(false));
+                  }}>
+                  {tciRecBusy ? t('aud.tciRecBusy') : t('aud.tciRec')}
+                </Button>
+                {!!tciRecPath && <span className="text-[11px] font-mono text-muted-foreground truncate">{tciRecPath}</span>}
+              </div>
+            )}
+            {!!tciAudio.last_err && <p className="text-[11px] text-danger">{tciAudio.last_err}</p>}
+            <label className="flex items-start gap-2 text-xs cursor-pointer">
+              <Checkbox className="mt-0.5" checked={tciRec}
+                onCheckedChange={(c) => { setTciRec(!!c); SetTCIRecordAudio(!!c).catch(() => {}); }} />
+              <span>
+                {t('aud.tciRecord')}
+                <span className="block text-muted-foreground">{t('aud.tciRecordHint')}</span>
+              </span>
+            </label>
+            <p className="text-[11px] text-muted-foreground">{t('aud.tciHint')}</p>
+          </div>
           <div className="flex items-center gap-3">
             <Button
               variant={monitorOn ? 'default' : 'outline'}

frontend/src/components/WheelRange.tsx

@@ -0,0 +1,62 @@
+import { useEffect, useRef } from 'react';
+import { cn } from '@/lib/utils';
+
+// A range slider the mouse wheel can move.
+//
+// Dragging a 4-pixel-tall slider to change the power by five watts is a fussy
+// gesture; rolling the wheel over it is not, and it is what an operator reaches
+// for after using the Flex and Yaesu consoles, which have had it for a while.
+//
+// React's own onWheel is registered PASSIVE, so preventDefault() inside it is
+// ignored and the panel scrolls under the pointer while the value changes. The
+// listener therefore has to be attached natively with { passive: false }, and
+// the live values read through refs — the listener is installed once and would
+// otherwise capture the first render's value for ever.
+//
+// The Flex and Yaesu panels each grew their own copy of this before it was worth
+// sharing. They are left alone deliberately: they work, they are in daily use,
+// and their styling differs in small ways that a merge would have to guess at.
+export function WheelRange({ value, onChange, min = 0, max = 100, step = 1, disabled, accent = 'var(--primary)', className }: {
+  value: number; onChange: (v: number) => void;
+  min?: number; max?: number; step?: number; disabled?: boolean; accent?: string; className?: string;
+}) {
+  const v = Math.max(min, Math.min(max, value));
+  const pct = max > min ? ((v - min) / (max - min)) * 100 : 0;
+  const ref = useRef<HTMLInputElement>(null);
+  const valRef = useRef(v); valRef.current = v;
+  const cbRef = useRef(onChange); cbRef.current = onChange;
+  const disRef = useRef(disabled); disRef.current = disabled;
+  const stepRef = useRef(step); stepRef.current = step;
+  const minRef = useRef(min); minRef.current = min;
+  const maxRef = useRef(max); maxRef.current = max;
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+    const onWheel = (e: WheelEvent) => {
+      if (disRef.current) return;
+      e.preventDefault();
+      const d = e.deltaY < 0 ? stepRef.current : -stepRef.current;
+      const nv = Math.max(minRef.current, Math.min(maxRef.current, valRef.current + d));
+      if (nv !== valRef.current) cbRef.current(nv);
+    };
+    el.addEventListener('wheel', onWheel, { passive: false });
+    return () => el.removeEventListener('wheel', onWheel);
+  }, []);
+
+  return (
+    <input
+      ref={ref}
+      type="range" min={min} max={max} step={step} value={v} disabled={disabled}
+      onChange={(e) => onChange(parseInt(e.target.value, 10))}
+      className={cn('flex-1 h-1.5 rounded-full appearance-none cursor-pointer disabled:opacity-30 disabled:cursor-default',
+        '[&::-webkit-slider-thumb]:appearance-none [&::-webkit-slider-thumb]:size-3.5 [&::-webkit-slider-thumb]:rounded-full',
+        '[&::-webkit-slider-thumb]:bg-card [&::-webkit-slider-thumb]:border-2 [&::-webkit-slider-thumb]:shadow-sm [&::-webkit-slider-thumb]:cursor-pointer',
+        className)}
+      style={{
+        background: `linear-gradient(to right, ${accent} ${pct}%, color-mix(in srgb, var(--foreground) 18%, transparent) ${pct}%)`,
+        borderColor: accent,
+      }}
+    />
+  );
+}

frontend/src/components/YaesuPanel.tsx

@@ -18,7 +18,8 @@ type YaesuState = {
   s_meter: number; power_meter: number; swr_meter: number;
   rf_power: number; mic_gain: number; af_gain: number; rf_gain: number; squelch: number;
   agc?: string; preamp: number; att: number; antenna: number;
-  nb: boolean; nr: boolean; nr_level: number; narrow: boolean; vox: boolean;
+  nb: boolean; nr: boolean; nr_level: number; narrow: boolean; narrow_supported?: boolean; vox: boolean;
+  max_power?: number;
   split_tx_hz?: number; key_speed?: number; break_in?: boolean; swr?: number; power_w?: number;
 };
 
@@ -445,7 +446,13 @@ export function YaesuPanel({ onReportRST, onKeySpeed }: {
         <div className="flex items-center gap-2 flex-wrap">
           <Chip on={view.nb} onClick={() => push('nb', !view.nb, () => SetYaesuNB(!view.nb))} label="NB" />
           <Chip on={view.nr} onClick={() => push('nr', !view.nr, () => SetYaesuNR(!view.nr))} label="DNR" />
-          <Chip on={view.narrow} onClick={() => push('narrow', !view.narrow, () => SetYaesuNarrow(!view.narrow))} label="NAR" />
+          {/* NAR is the narrow IF filter. Shown only when the rig ANSWERED NA:
+              a button that does nothing when pressed reads as a fault in the
+              radio, which is how it was reported from an FTDX101. */}
+          {view.narrow_supported && (
+            <Chip on={view.narrow} onClick={() => push('narrow', !view.narrow, () => SetYaesuNarrow(!view.narrow))}
+              label="NAR" title={t('yaesu.narrowHint')} />
+          )}
         </div>
         <Row label="DNR">
           {/* 1-15 on the rig, shown as-is rather than rescaled to a percentage:
@@ -462,7 +469,7 @@ export function YaesuPanel({ onReportRST, onKeySpeed }: {
         <Row label="PWR">
           {/* Watts, not a percentage: the rig reports and takes watts, and a
               percentage would be a second unit to reconcile every time. */}
-          <Slider value={view.rf_power || 5} min={5} max={100} accent="var(--destructive)"
+          <Slider value={view.rf_power || 5} min={5} max={Math.max(100, view.max_power || 100)} accent="var(--destructive)"
             onChange={(v) => push('rf_power', v, () => SetYaesuPower(v))} />
           <span className="w-10 text-right text-xs font-mono tabular-nums text-muted-foreground">{view.rf_power}W</span>
         </Row>

frontend/src/lib/i18n.tsx

@@ -109,7 +109,7 @@ const en: Dict = {
   'settings.pane.map1': 'Map — great-circle + beam', 'settings.pane.map2': 'Map — locator (street)',
   'settings.pane.cluster': 'Cluster spots', 'settings.pane.worked': 'Worked before',
   'settings.pane.recent': 'Recent QSOs', 'settings.pane.netcontrol': 'Net control', 'settings.pane.decodes': 'FT decodes',
-  'settings.pane.flex': 'Flex Console', 'settings.pane.icom': 'Icom Console', 'settings.pane.yaesu': 'Yaesu Console', 'yaesu.notConnected': 'Yaesu CAT not connected', 'yaesu.meters': 'Meters', 'yaesu.bandMode': 'Band & mode', 'yaesu.receive': 'Receive', 'yaesu.noiseFilter': 'Noise & filter', 'yaesu.transmit': 'Transmit', 'yaesu.refresh': 'Refresh', 'yaesu.tuneHint': 'Start an antenna-tuner cycle', 'yaesu.sToRst': 'Click to fill the RST sent', 'yaesu.sidebandHint': 'Click to select this mode; click again to switch sideband (U/L)', 'yaesu.splitUpHint': 'Transmit this far above the receive frequency, and turn split on', 'yaesu.txOn': 'TX', 'yaesu.cw': 'CW', 'yaesu.breakInHint': 'Break-in: the rig switches to receive between characters', 'yaesu.zinHint': 'Zero-in: retune so the station you hear lands on your CW pitch',
+  'settings.pane.flex': 'Flex Console', 'settings.pane.icom': 'Icom Console', 'settings.pane.yaesu': 'Yaesu Console', 'yaesu.notConnected': 'Yaesu CAT not connected', 'yaesu.meters': 'Meters', 'yaesu.bandMode': 'Band & mode', 'yaesu.receive': 'Receive', 'yaesu.noiseFilter': 'Noise & filter', 'yaesu.transmit': 'Transmit', 'yaesu.refresh': 'Refresh', 'yaesu.narrowHint': 'Narrow IF filter (NAR) — tightens the receive bandwidth. Only shown when the radio answers the command.', 'yaesu.tuneHint': 'Start an antenna-tuner cycle', 'yaesu.sToRst': 'Click to fill the RST sent', 'yaesu.sidebandHint': 'Click to select this mode; click again to switch sideband (U/L)', 'yaesu.splitUpHint': 'Transmit this far above the receive frequency, and turn split on', 'yaesu.txOn': 'TX', 'yaesu.cw': 'CW', 'yaesu.breakInHint': 'Break-in: the rig switches to receive between characters', 'yaesu.zinHint': 'Zero-in: retune so the station you hear lands on your CW pitch',
   'theme.auto': 'Auto (system)', 'theme.light-warm': 'Warm light', 'theme.light-cool': 'Cool light',
   'theme.light-sage': 'Sage light', 'theme.light-nordic': 'Nordic light', 'theme.sahara': 'Sahara', 'theme.dim-slate': 'Dim slate', 'theme.dark-warm': 'Warm dark',
   'theme.dark-graphite': 'Graphite dark', 'theme.dark-indigo': 'Indigo', 'theme.dark-teal': 'Ocean', 'theme.dark-plum': 'Plum', 'theme.high-contrast': 'High contrast',
@@ -313,7 +313,7 @@ const en: Dict = {
   'gsc.scope': 'Match a square by', 'gsc.hunt': 'Chase', 'gsc.huntNew': 'New — never worked', 'gsc.huntUnconf': 'New and unconfirmed', 'gsc.scope_band_digi': 'This band + any digital mode', 'gsc.scope_band_mode': 'This band + this exact mode', 'gsc.scope_band_ftx': 'This band + any FT mode (FT8/FT4/FT2)', 'gsc.scope_mix_digi': 'Any band + any digital mode', 'gsc.scope_mix_mode': 'Any band + this exact mode', 'gsc.scope_mix_ftx': 'Any band + any FT mode (FT8/FT4/FT2)', 'gsc.hint': 'Decides when a square stops being NEW. Narrower means more squares to chase: per band and per exact mode is the most demanding, any band and any digital mode the least. Chasing unconfirmed as well keeps a square wanted until a QSL, LoTW or eQSL confirmation arrives — it is still missing from the award until then.',
   'gsm.basemap': 'Basemap', 'gsm.title': 'Grid squares', 'gsm.all': 'All', 'gsm.phone': 'Phone', 'gsm.cw': 'CW', 'gsm.digital': 'Digital', 'gsm.ftx': 'FTx', 'gsm.confirmed': 'confirmed', 'gsm.worked': 'worked', 'gsm.colConfirmed': 'Colour for confirmed squares', 'gsm.colWorked': 'Colour for worked (unconfirmed) squares', 'gsm.colReset': 'Back to the theme colours', 'gsm.refresh': 'Recount from the log', 'gsm.count': '{n} squares · {c} confirmed',
   'bo.nearKm': 'Count receivers within', 'bo.nearKmHint': 'A report proves YOUR path only if it was collected near you. Smaller is more local but leaves fewer receivers listening — too small and the watch has nothing to look at. 300 km borrows a whole region; 100 km suits 2 m, where a duct is narrow.',
-  'bo.open': 'open', 'bo.liveTip': '{band} is open — {n} stations, ~{km} km, {sector}{season}. Click for the band map.', 'bo.enable': 'Watch for band openings', 'bo.enableHint': '(10, 12, 6, 4 and 2 m. Switching this on adds the two RBN nodes and subscribes to the PSK Reporter feed — the detection needs far more ears than a cluster can give it.)', 'bo.feedUp': 'PSK Reporter feed up — {n} decodes seen', 'bo.feedDown': 'PSK Reporter feed down — needs your station grid, and a moment to connect', 'clu.spotTtl': 'Spot lifetime', 'clu.spotTtlNever': 'Keep', 'clu.spotTtlHint': 'minutes — spots older than this are removed from the list and the band maps. 0 keeps them.', 'clu.chaseGrids': 'Chase new grids', 'clu.chaseGridsHint': '(learns locators from your own WSJT-X decodes AND from PSK Reporter, and keeps them in their own database so the cluster shows them from the first second)', 'clu.chaseGridsStat': '{n} locators known — {p} waiting to be written', 'clu.workedSameSlot': 'Already worked only on the same slot',
+  'bo.open': 'open', 'bo.liveTip': '{band} is open — {n} stations, ~{km} km, {sector}{season}. Click for the band map.', 'bo.enable': 'Watch for band openings', 'bo.enableHint': '(10, 12, 6, 4 and 2 m. Switching this on adds the two RBN nodes and subscribes to the PSK Reporter feed — the detection needs far more ears than a cluster can give it.)', 'bo.feedUp': 'PSK Reporter feed up — {n} decodes seen', 'bo.feedDown': 'PSK Reporter feed down — needs your station grid, and a moment to connect', 'clu.spotTtl': 'Spot lifetime', 'clu.spotTtlNever': 'Keep', 'clu.spotMax': 'Spots kept', 'clu.spotMaxHint': 'The list is a ring buffer: past this, the oldest spot drops out. It is usually this, not the lifetime, that decides — a thousand spots arrive in a few minutes on a busy evening.', 'clu.spotTtlHint': 'minutes — spots older than this are removed from the list and the band maps. 0 keeps them.', 'clu.chaseGrids': 'Chase new grids', 'clu.chaseGridsHint': '(learns locators from your own WSJT-X decodes AND from PSK Reporter, and keeps them in their own database so the cluster shows them from the first second)', 'clu.chaseGridsStat': '{n} locators known — {p} waiting to be written', 'clu.workedSameSlot': 'Already worked only on the same slot',
   'clu.macros': 'Command buttons', 'clu.macrosHint': 'A named button beside the cluster command box. Leave the command empty and the button is not shown.',
   'clu.macroLabel': 'Button', 'clu.macroCmd': 'Command',
   'clu.workedSameSlotHint': '— a spot shows "worked" only if you worked that call on the SAME band and mode, not just anywhere. Combines with digital-mode grouping (Settings → General): with it on, a call worked on 20m FT8 also counts as worked for a 20m FT4 spot; with it off, FT8 and FT4 are separate slots.',
@@ -426,7 +426,7 @@ const en: Dict = {
   'tgp.online': 'online', 'tgp.offline': 'offline', 'tgp.close': 'Close', 'tgp.connecting': 'Connecting…', 'tgp.swr': 'SWR', 'tgp.power': 'Fwd power', 'tgp.tune': 'Tune', 'tgp.tuning': 'Tuning…', 'tgp.tuneHint': 'Start an automatic tuning cycle on the active channel — key the rig into a carrier so the tuner can measure SWR', 'tgp.bypass': 'Bypass', 'tgp.bypassHint': 'Toggle global bypass — route the antenna straight through, tuner out of line', 'tgp.operate': 'Operate', 'tgp.standby': 'Standby', 'tgp.operateHint': 'Toggle Operate / Standby',
   'tgp.title': 'Tuner Genius', 'tgp.chActive': 'Channel {letter} — active', 'tgp.chSelect': 'Make channel {letter} active', 'tgp.chActiveTag': 'active', 'tgp.ant': 'Ant', 'tgp.bypassed': 'Bypassed', 'tgp.inLine': 'In line',
   'flxp.ritHint': 'RIT — shifts your RECEIVE frequency only. Wheel, ± or arrow keys to adjust (Ctrl = 100 Hz). The offset is kept when you switch it off.', 'flxp.xitHint': 'XIT — shifts your TRANSMIT frequency only. Wheel, ± or arrow keys to adjust (Ctrl = 100 Hz). The offset is kept when you switch it off.',
-  'flxp.smartsdrRemote': 'SmartSDR remote control', 'flxp.offline': 'OFFLINE', 'flxp.waiting': 'Waiting for the FlexRadio… (set CAT to FlexRadio and connect)', 'flxp.transmit': 'Transmit', 'flxp.rfPower': 'RF Power', 'flxp.tunePwr': 'Tune Pwr', 'flxp.rstChaseHint': 'Chase the pile-up: when the CW skimmer marks a report ({m}) on the panadapter, move the TRANSMIT slice there — that is where the DX was listening a second ago. The receive slice never moves. Right-click to change the marker text.', 'flxp.rstChaseMarkerHint': 'The text the skimmer writes for a report — whatever SDC is set to send (599, 5NN…). Several can be given, separated by commas; add the old-report marker to chase those too.', 'flxp.rstChaseOffset': 'off', 'flxp.splitHint': 'Split: RX/TX on separate slices. ON creates a TX slice +1 kHz (CW) / +5 kHz (SSB) up, like SmartSDR.', 'flxp.sliceHint': 'Click to make this the active slice — frequency, mode, DSP and spot-clicks all follow it.', 'flxp.txSlice': 'This slice transmits', 'flxp.setTxSlice': 'Move TX to this slice (transmit here)', 'flxp.voxDly': 'VOX Dly', 'flxp.speed': 'Speed', 'flxp.pitch': 'Pitch', 'flxp.delay': 'Delay',
+  'flxp.smartsdrRemote': 'SmartSDR remote control', 'flxp.offline': 'OFFLINE', 'flxp.waiting': 'Waiting for the FlexRadio… (set CAT to FlexRadio and connect)', 'flxp.transmit': 'Transmit', 'flxp.rfPower': 'RF Power', 'flxp.tunePwr': 'Tune Pwr', 'flxp.rstChaseHint': 'Chase the pile-up: when the CW skimmer marks a report ({m}) on the panadapter, move the TRANSMIT slice there — that is where the DX was listening a second ago. The receive slice never moves. Right-click to change the marker text.', 'flxp.rstChaseMarkerHint': 'The text the skimmer writes for a report — whatever SDC is set to send (599, 5NN…). Several can be given, separated by commas; add the old-report marker to chase those too.', 'flxp.rstChaseOffset': 'off', 'k3.console': 'Elecraft Console', 'k3.waiting': 'Waiting for the radio… (set CAT to Elecraft or Kenwood and connect)', 'k3.rfGain': 'RF gain', 'k3.micGain': 'Mic', 'k3.squelch': 'Squelch', 'k3.filter': 'Filter', 'k3.antenna': 'Antenna', 'k3.clear': 'CLEAR', 'k3.keySpeed': 'Keyer', 'k3.meters': 'Meters', 'k3.levels': 'Levels', 'k3.receive': 'Receive', 'k3.power': 'Power', 'k3.volume': 'Volume', 'k3.refreshHint': 'Re-read the settings from the radio — for when a knob was turned on the front panel.', 'k3.sMeterHint': 'Click to use this reading as the report sent. Raw value from the rig: {raw}.', 'k3.atuHint': 'Put the ATU in line or bypass it (a hold of the K3 ATU switch).', 'k3.tuneHint': 'Start an ATU tuning cycle (K3: a tap of the ATU TUNE button). The exact command sent is written to the log.', 'k3.provisional': 'Meter scaling is provisional: it has not yet been confirmed against a real K3, and the raw readings are written to the log so it can be.', 'flxp.splitHint': 'Split: RX/TX on separate slices. ON creates a TX slice +1 kHz (CW) / +5 kHz (SSB) up, like SmartSDR.', 'flxp.sliceHint': 'Click to make this the active slice — frequency, mode, DSP and spot-clicks all follow it.', 'flxp.txSlice': 'This slice transmits', 'flxp.setTxSlice': 'Move TX to this slice (transmit here)', 'flxp.voxDly': 'VOX Dly', 'flxp.speed': 'Speed', 'flxp.pitch': 'Pitch', 'flxp.delay': 'Delay',
   'flxp.receiveActive': 'Receive (active slice)', 'flxp.muted': 'Muted — click to unmute', 'flxp.mute': 'Mute RX audio', 'flxp.filter': 'Filter', 'flxp.amplifier': 'Amplifier', 'flxp.atuTune': 'TUNE', 'flxp.atuTuneHint': 'Start a tuning cycle on the built-in ATU. The radio keys a carrier itself to measure the match.', 'flxp.atuBypass': 'BYPASS', 'flxp.atuBypassHint': 'Take the ATU out of line (straight through).', 'flxp.atuMem': 'MEM', 'flxp.atuMemHint': 'Reuse the stored tuning solution for this frequency instead of tuning again.', 'flxp.atuIdle': 'not tuned', 'flxp.atuTuning': 'tuning…', 'flxp.atuOk': 'tuned', 'flxp.atuFail': 'TUNE FAILED', 'flxp.atuBypassed': 'bypassed', 'flxp.atuAborted': 'aborted', 'flxp.ampInLine': 'Amplifier is in line (transmitting through PA).', 'flxp.ampBypassed': 'Amplifier bypassed (standby).', 'flxp.pgConnected': 'PowerGenius connected', 'flxp.pgOffline': 'PowerGenius offline', 'flxp.fan': 'Fan', 'flxp.fanStandard': 'Standard', 'flxp.fanContest': 'Contest', 'flxp.fanBroadcast': 'Broadcast', 'flxp.fault': 'FAULT', 'flxp.meters': 'Meters', 'flxp.voltage': 'VOLTAGE', 'flxp.paTemp': 'PA TEMP', 'flxp.txFilter': 'TX filter', 'flxp.micProfile': 'Mic profile', 'flxp.noMeters': "No meters yet — waiting for the radio's UDP stream…", 'flxp.amplifierHdr': 'AMPLIFIER', 'flxp.outputPower': 'OUTPUT POWER', 'flxp.speOffline': 'SPE offline', 'flxp.acomOffline': 'ACOM offline', 'flxp.ampPick': 'Choose which amplifier this card shows', 'flxp.dspV4Hint': 'SmartSDR v4 DSP (8000/Aurora series)', 'flxp.daxHint': 'DAX as the transmit audio source (SmartSDR transmit-bar DAX button) — for WSJT-X & co', 'flxp.rnnHint': 'RNN — AI noise reduction (on/off)', 'flxp.anftHint': 'ANFT — FFT-based automatic notch filter (on/off)', 'flxp.dspNoise': 'Noise', 'flxp.dspMore': 'Show/hide advanced DSP (WNB, v4 NR/notch)',
   'icmp.spectrum': 'Spectrum', 'icmp.scopeFixed': 'Fixed — double-click / wheel to tune', 'icmp.scopeCenter': 'Center — follows VFO', 'icmp.scopeOff': 'Scope off', 'icmp.scopePanDown': 'Shift scope −50 kHz', 'icmp.scopePanUp': 'Shift scope +50 kHz', 'icmp.scopeCenterVfo': 'Center scope on the current frequency (±50 kHz)', 'icmp.notConnected': "Icom not connected. Enable the Icom CI-V backend in Settings → CAT and connect the radio's USB port.", 'icmp.refresh': 'Refresh', 'icmp.meters': 'Meters', 'icmp.transmit': 'Transmit', 'icmp.power': 'Power', 'icmp.mic': 'Mic', 'icmp.receive': 'Receive', 'icmp.preamp': 'Preamp', 'icmp.filter': 'Filter', 'icmp.noiseNotch': 'Noise / Notch', 'icmp.autoNotch': 'Auto notch filter', 'icmp.apf': 'Audio peak filter (CW)', 'icmp.clarifiers': 'RIT / ΔTX', 'icmp.ritHint': 'Wheel or ± to shift · Ctrl+←/→ shifts RIT when active', 'icmp.bandsAntenna': 'Bands & Antenna', 'icmp.bandCurrent': 'The rig is on {b} m', 'icmp.antenna': 'Antenna', 'icmp.passband': 'Passband / Notch', 'icmp.pbtCenter': 'Center PBT', 'icmp.manualNotch': 'Manual notch — MN on, then set position', 'icmp.squelch': 'Squelch', 'icmp.powerOnHint': 'Power the radio ON (boots ~15 s)', 'icmp.powerOffHint': 'Power the radio OFF', 'icmp.powerOffConfirm': 'Switch the radio OFF?',
   'rst.clickToFill': 'Click to set RST tx from the signal',
@@ -494,7 +494,7 @@ const en: Dict = {
   'aud.noneDefault': '— none / system default —', 'aud.defaultTag': '(default)',
   'aud.fromRadioShort': 'From Radio', 'aud.toRadioShort': 'To Radio', 'aud.explainFrom': '= what you receive (used by the QSO recorder).', 'aud.explainTo': '= where voice-keyer messages are transmitted.',
   'aud.monitorTitle': "Hear the rig's RX audio (From Radio) through your Listening device", 'aud.listenRadio': '▶ Listen to radio', 'aud.stopListening': '■ Stop listening',
-  'aud.monitorOn': 'RX monitor running — From Radio → Listening device.', 'aud.monitorHint': 'Live-monitor the rig here (USB codec now; network audio later).',
+  'aud.monitorOn': 'RX monitor running — From Radio → Listening device.', 'aud.tciTitle': 'SunSDR receive audio over TCI (experimental)', 'aud.tciStart': 'Open the stream', 'aud.tciStop': 'Close the stream', 'aud.tciRec': 'Record 10 s to listen', 'aud.tciRecBusy': 'Recording…', 'aud.tciSilent': 'silent', 'aud.tciRecord': 'Record QSOs from this stream', 'aud.tciRecordHint': 'The QSO recorder takes the receive audio from the radio instead of a sound card — no virtual cable, nothing to select above. Your microphone is still recorded from the device chosen there.', 'aud.tciHint': 'Takes the receive audio straight from the radio over TCI, with no virtual audio cable and no second sound card. Receive only for now — the voice keyer still uses the devices above. Requires the CAT backend to be TCI.', 'aud.monitorHint': 'Live-monitor the rig here (USB codec now; network audio later).',
   'aud.txTitle': 'Key PTT and pipe your live mic into the rig (To Radio device)', 'aud.talkRadio': '🎙 Talk to radio (TX)', 'aud.stopTalk': '■ Stop talking (TX)',
   'aud.txOn': 'TRANSMITTING — mic → To Radio, PTT keyed. Click to stop.', 'aud.txHint': 'Live mic → rig with PTT (USB now; network TX later).',
   'aud.recorder': 'QSO recorder', 'aud.recordEvery': 'Record every QSO to an audio file (From Radio + your mic)', 'aud.recFolder': 'Recordings folder', 'aud.browse': 'Browse…',
@@ -596,7 +596,7 @@ const fr: Dict = {
   'settings.pane.map1': 'Carte — orthodromie + faisceau', 'settings.pane.map2': 'Carte — locator (rue)',
   'settings.pane.cluster': 'Spots cluster', 'settings.pane.worked': 'Déjà contactés',
   'settings.pane.recent': 'QSO récents', 'settings.pane.netcontrol': 'Gestion de net', 'settings.pane.decodes': 'Decodes FT',
-  'settings.pane.flex': 'Flex Console', 'settings.pane.icom': 'Icom Console', 'settings.pane.yaesu': 'Yaesu Console', 'yaesu.notConnected': 'CAT Yaesu non connecté', 'yaesu.meters': 'Mesures', 'yaesu.bandMode': 'Bande et mode', 'yaesu.receive': 'Réception', 'yaesu.noiseFilter': 'Bruit et filtre', 'yaesu.transmit': 'Émission', 'yaesu.refresh': 'Actualiser', 'yaesu.tuneHint': "Lancer un cycle d'accord d'antenne", 'yaesu.sToRst': 'Cliquer pour remplir le RST envoyé', 'yaesu.sidebandHint': 'Cliquer pour choisir ce mode ; recliquer pour changer de bande latérale (U/L)', 'yaesu.splitUpHint': "Émettre à cette distance au-dessus de la fréquence de réception, et activer le split", 'yaesu.txOn': 'TX', 'yaesu.cw': 'CW', 'yaesu.breakInHint': "Break-in : la radio repasse en réception entre les caractères", 'yaesu.zinHint': "Zéro-in : réaccorde pour que la station entendue tombe sur votre note CW",
+  'settings.pane.flex': 'Flex Console', 'settings.pane.icom': 'Icom Console', 'settings.pane.yaesu': 'Yaesu Console', 'yaesu.notConnected': 'CAT Yaesu non connecté', 'yaesu.meters': 'Mesures', 'yaesu.bandMode': 'Bande et mode', 'yaesu.receive': 'Réception', 'yaesu.noiseFilter': 'Bruit et filtre', 'yaesu.transmit': 'Émission', 'yaesu.refresh': 'Actualiser', 'yaesu.narrowHint': "Filtre FI étroit (NAR) — resserre la bande passante de réception. N'apparaît que si la radio répond à la commande.", 'yaesu.tuneHint': "Lancer un cycle d'accord d'antenne", 'yaesu.sToRst': 'Cliquer pour remplir le RST envoyé', 'yaesu.sidebandHint': 'Cliquer pour choisir ce mode ; recliquer pour changer de bande latérale (U/L)', 'yaesu.splitUpHint': "Émettre à cette distance au-dessus de la fréquence de réception, et activer le split", 'yaesu.txOn': 'TX', 'yaesu.cw': 'CW', 'yaesu.breakInHint': "Break-in : la radio repasse en réception entre les caractères", 'yaesu.zinHint': "Zéro-in : réaccorde pour que la station entendue tombe sur votre note CW",
   'theme.auto': 'Auto (système)', 'theme.light-warm': 'Clair chaud', 'theme.light-cool': 'Clair froid',
   'theme.light-sage': 'Clair sauge', 'theme.light-nordic': 'Clair nordique', 'theme.sahara': 'Sahara', 'theme.dim-slate': 'Ardoise tamisé', 'theme.dark-warm': 'Sombre chaud',
   'theme.dark-graphite': 'Sombre graphite', 'theme.dark-indigo': 'Indigo', 'theme.dark-teal': 'Océan', 'theme.dark-plum': 'Prune', 'theme.high-contrast': 'Contraste élevé',
@@ -795,7 +795,7 @@ const fr: Dict = {
   'bo.nearKm': 'Compter les récepteurs à moins de', 'bo.nearKmHint': 'Un report ne prouve TON chemin que s’il a été collecté près de chez toi. Plus petit est plus local, mais laisse moins de récepteurs à l’écoute — trop petit, la veille n’a plus rien à observer. 300 km emprunte les oreilles de toute une région ; 100 km convient au 2 m, où un conduit est étroit.',
   'bo.open': 'ouvert', 'bo.liveTip': '{band} est ouvert — {n} stations, ~{km} km, {sector}{season}. Cliquer pour le bandmap.', 'bo.enable': 'Surveiller les ouvertures de bande', 'bo.enableHint': "(10, 12, 6, 4 et 2 m. Activer ajoute les deux nœuds RBN et souscrit au flux PSK Reporter — la détection a besoin de bien plus d oreilles qu un cluster ne peut en fournir.)", 'bo.feedUp': 'Flux PSK Reporter actif — {n} décodages vus', 'bo.feedDown': 'Flux PSK Reporter inactif — il faut ton locator, et un instant pour se connecter', 'clu.workedSameSlot': 'Déjà contacté seulement sur le même slot',
   'clu.macros': 'Boutons de commande', 'clu.macrosHint': 'Un bouton nommé à côté du champ de commande du cluster. Laisse la commande vide et le bouton n’est pas affiché.',
-  'clu.macroLabel': 'Bouton', 'clu.macroCmd': 'Commande', 'clu.spotTtl': 'Durée de vie des spots', 'clu.spotTtlNever': 'Garder', 'clu.spotTtlHint': 'minutes — les spots plus vieux que ça sont retirés de la liste et des bandmaps. 0 les conserve.', 'clu.chaseGrids': 'Chasser les nouveaux locators', 'clu.chaseGridsHint': '(apprend les locators depuis TES propres décodages WSJT-X ET depuis PSK Reporter, et les garde dans leur propre base pour que le cluster les affiche dès la première seconde)', 'clu.chaseGridsStat': '{n} locators connus — {p} en attente d’écriture',
+  'clu.macroLabel': 'Bouton', 'clu.macroCmd': 'Commande', 'clu.spotTtl': 'Durée de vie des spots', 'clu.spotTtlNever': 'Garder', 'clu.spotMax': 'Nombre de spots conservés', 'clu.spotMaxHint': "La liste est un tampon circulaire : au-delà, le plus ancien sort. C'est souvent lui, et non la durée de vie, qui décide — mille spots arrivent en quelques minutes un soir chargé.", 'clu.spotTtlHint': 'minutes — les spots plus vieux que ça sont retirés de la liste et des bandmaps. 0 les conserve.', 'clu.chaseGrids': 'Chasser les nouveaux locators', 'clu.chaseGridsHint': '(apprend les locators depuis TES propres décodages WSJT-X ET depuis PSK Reporter, et les garde dans leur propre base pour que le cluster les affiche dès la première seconde)', 'clu.chaseGridsStat': '{n} locators connus — {p} en attente d’écriture',
   'clu.workedSameSlotHint': '— un spot n\'affiche « contacté » que si vous avez contacté cet indicatif sur la MÊME bande et le MÊME mode, pas juste n\'importe où. Se combine avec le groupage des modes numériques (Réglages → Général) : activé, un indicatif contacté en 20m FT8 compte aussi comme contacté pour un spot 20m FT4 ; désactivé, FT8 et FT4 sont des slots distincts.',
 
 
@@ -898,7 +898,7 @@ const fr: Dict = {
   'tgp.online': 'en ligne', 'tgp.offline': 'hors ligne', 'tgp.close': 'Fermer', 'tgp.connecting': 'Connexion…', 'tgp.swr': 'ROS', 'tgp.power': 'Puiss. directe', 'tgp.tune': 'Accord', 'tgp.tuning': 'Accord…', 'tgp.tuneHint': "Lancer un cycle d'accord automatique sur le canal actif — passe la radio en porteuse pour que le coupleur mesure le ROS", 'tgp.bypass': 'Bypass', 'tgp.bypassHint': "Basculer le bypass global — antenne en direct, coupleur hors ligne", 'tgp.operate': 'Operate', 'tgp.standby': 'Standby', 'tgp.operateHint': 'Basculer Operate / Standby',
   'tgp.title': 'Tuner Genius', 'tgp.chActive': 'Canal {letter} — actif', 'tgp.chSelect': 'Activer le canal {letter}', 'tgp.chActiveTag': 'actif', 'tgp.ant': 'Ant', 'tgp.bypassed': 'Bypass', 'tgp.inLine': 'En ligne',
   'flxp.ritHint': "RIT — décale uniquement ta fréquence de RÉCEPTION. Molette, ± ou flèches pour ajuster (Ctrl = 100 Hz). Le décalage est conservé quand tu l'éteins.", 'flxp.xitHint': "XIT — décale uniquement ta fréquence d'ÉMISSION. Molette, ± ou flèches pour ajuster (Ctrl = 100 Hz). Le décalage est conservé quand tu l'éteins.",
-  'flxp.smartsdrRemote': 'Contrôle à distance SmartSDR', 'flxp.offline': 'HORS LIGNE', 'flxp.waiting': 'En attente du FlexRadio… (règle le CAT sur FlexRadio et connecte)', 'flxp.transmit': 'Émission', 'flxp.rfPower': 'Puissance RF', 'flxp.tunePwr': 'Puiss. TUNE', 'flxp.rstChaseHint': "Chasser le pile-up : quand le skimmer CW marque un report ({m}) sur le panadapter, déplacer la slice d'ÉMISSION dessus — c'est là que le DX écoutait il y a une seconde. La slice de réception ne bouge jamais. Clic droit pour changer le texte du marqueur.", 'flxp.rstChaseMarkerHint': "Le texte que le skimmer écrit pour un report — ce que SDC est réglé à envoyer (599, 5NN…). On peut en mettre plusieurs, séparés par des virgules ; ajoute le marqueur des reports anciens pour les chasser aussi.", 'flxp.rstChaseOffset': 'off', 'flxp.splitHint': 'Split : RX/TX sur des slices séparées. ON crée une slice TX +1 kHz (CW) / +5 kHz (SSB) au-dessus, comme SmartSDR.', 'flxp.sliceHint': 'Cliquer pour rendre cette slice active — fréquence, mode, DSP et clics de spot la suivent tous.', 'flxp.txSlice': 'Cette slice émet', 'flxp.setTxSlice': 'Déplacer le TX sur cette slice (émettre ici)', 'flxp.voxDly': 'Délai VOX', 'flxp.speed': 'Vitesse', 'flxp.pitch': 'Tonalité', 'flxp.delay': 'Délai',
+  'flxp.smartsdrRemote': 'Contrôle à distance SmartSDR', 'flxp.offline': 'HORS LIGNE', 'flxp.waiting': 'En attente du FlexRadio… (règle le CAT sur FlexRadio et connecte)', 'flxp.transmit': 'Émission', 'flxp.rfPower': 'Puissance RF', 'flxp.tunePwr': 'Puiss. TUNE', 'flxp.rstChaseHint': "Chasser le pile-up : quand le skimmer CW marque un report ({m}) sur le panadapter, déplacer la slice d'ÉMISSION dessus — c'est là que le DX écoutait il y a une seconde. La slice de réception ne bouge jamais. Clic droit pour changer le texte du marqueur.", 'flxp.rstChaseMarkerHint': "Le texte que le skimmer écrit pour un report — ce que SDC est réglé à envoyer (599, 5NN…). On peut en mettre plusieurs, séparés par des virgules ; ajoute le marqueur des reports anciens pour les chasser aussi.", 'flxp.rstChaseOffset': 'off', 'k3.console': 'Console Elecraft', 'k3.waiting': 'En attente de la radio… (règle le CAT sur Elecraft ou Kenwood et connecte)', 'k3.rfGain': 'Gain HF', 'k3.micGain': 'Micro', 'k3.squelch': 'Squelch', 'k3.filter': 'Filtre', 'k3.antenna': 'Antenne', 'k3.clear': 'EFFACER', 'k3.keySpeed': 'Manip', 'k3.meters': 'Mesures', 'k3.levels': 'Niveaux', 'k3.receive': 'Réception', 'k3.power': 'Puissance', 'k3.volume': 'Volume', 'k3.refreshHint': "Relire les réglages depuis la radio — quand un bouton a été tourné en façade.", 'k3.sMeterHint': 'Cliquer pour utiliser cette lecture comme report envoyé. Valeur brute de la radio : {raw}.', 'k3.atuHint': "Mettre la boîte d'accord en ligne ou la contourner (maintien de la touche ATU du K3).", 'k3.tuneHint': "Lancer un cycle d'accord de l'ATU (K3 : appui sur la touche ATU TUNE). La commande exacte envoyée est écrite dans le journal.", 'k3.provisional': "L'échelle des mesures est provisoire : elle n'a pas encore été confirmée sur un vrai K3, et les valeurs brutes sont écrites dans le journal pour qu'elle puisse l'être.", 'flxp.splitHint': 'Split : RX/TX sur des slices séparées. ON crée une slice TX +1 kHz (CW) / +5 kHz (SSB) au-dessus, comme SmartSDR.', 'flxp.sliceHint': 'Cliquer pour rendre cette slice active — fréquence, mode, DSP et clics de spot la suivent tous.', 'flxp.txSlice': 'Cette slice émet', 'flxp.setTxSlice': 'Déplacer le TX sur cette slice (émettre ici)', 'flxp.voxDly': 'Délai VOX', 'flxp.speed': 'Vitesse', 'flxp.pitch': 'Tonalité', 'flxp.delay': 'Délai',
   'flxp.receiveActive': 'Réception (slice active)', 'flxp.muted': 'Coupé — clic pour rétablir', 'flxp.mute': "Couper l'audio RX", 'flxp.filter': 'Filtre', 'flxp.amplifier': 'Amplificateur', 'flxp.atuTune': 'ACCORD', 'flxp.atuTuneHint': "Lance un cycle d'accord sur le coupleur intégré. La radio émet elle-même une porteuse pour mesurer l'adaptation.", 'flxp.atuBypass': 'BYPASS', 'flxp.atuBypassHint': 'Sort le coupleur de la ligne (passage direct).', 'flxp.atuMem': 'MEM', 'flxp.atuMemHint': "Réutilise l'accord mémorisé pour cette fréquence au lieu de refaire un cycle.", 'flxp.atuIdle': 'non accordé', 'flxp.atuTuning': 'accord en cours…', 'flxp.atuOk': 'accordé', 'flxp.atuFail': 'ÉCHEC ACCORD', 'flxp.atuBypassed': 'contourné', 'flxp.atuAborted': 'interrompu', 'flxp.ampInLine': 'Amplificateur en ligne (émission via le PA).', 'flxp.ampBypassed': 'Amplificateur en bypass (standby).', 'flxp.pgConnected': 'PowerGenius connecté', 'flxp.pgOffline': 'PowerGenius hors ligne', 'flxp.fan': 'Ventilo', 'flxp.fanStandard': 'Standard', 'flxp.fanContest': 'Contest', 'flxp.fanBroadcast': 'Diffusion', 'flxp.fault': 'DÉFAUT', 'flxp.meters': 'Mesures', 'flxp.voltage': 'TENSION', 'flxp.paTemp': 'TEMP PA', 'flxp.txFilter': 'Filtre TX', 'flxp.micProfile': 'Profil micro', 'flxp.noMeters': 'Aucune mesure — en attente du flux UDP de la radio…', 'flxp.amplifierHdr': 'AMPLIFICATEUR', 'flxp.outputPower': 'PUISSANCE DE SORTIE', 'flxp.speOffline': 'SPE hors ligne', 'flxp.acomOffline': 'ACOM hors ligne', 'flxp.ampPick': 'Choisir quel amplificateur cette carte affiche', 'flxp.dspV4Hint': 'DSP SmartSDR v4 (séries 8000/Aurora)', 'flxp.daxHint': "DAX comme source audio d'émission (bouton DAX du bandeau transmit de SmartSDR) — pour WSJT-X & co", 'flxp.rnnHint': 'RNN — réduction de bruit par IA (on/off)', 'flxp.anftHint': 'ANFT — filtre notch automatique FFT (on/off)', 'flxp.dspNoise': 'Bruit', 'flxp.dspMore': 'Afficher/masquer le DSP avancé (WNB, NR/notch v4)',
   'icmp.spectrum': 'Spectre', 'icmp.scopeFixed': 'Fixe — double-clic / molette pour accorder', 'icmp.scopeCenter': 'Centré — suit le VFO', 'icmp.scopeOff': 'Scope éteint', 'icmp.scopePanDown': 'Décaler le scope −50 kHz', 'icmp.scopePanUp': 'Décaler le scope +50 kHz', 'icmp.scopeCenterVfo': 'Centrer le scope sur la fréquence actuelle (±50 kHz)', 'icmp.notConnected': 'Icom non connecté. Active le backend CI-V Icom dans Réglages → CAT et connecte le port USB de la radio.', 'icmp.refresh': 'Rafraîchir', 'icmp.meters': 'Mesures', 'icmp.transmit': 'Émission', 'icmp.power': 'Puissance', 'icmp.mic': 'Micro', 'icmp.receive': 'Réception', 'icmp.preamp': 'Préampli', 'icmp.filter': 'Filtre', 'icmp.noiseNotch': 'Bruit / Notch', 'icmp.autoNotch': 'Filtre notch auto', 'icmp.apf': 'Filtre de pic audio (CW)', 'icmp.clarifiers': 'RIT / ΔTX', 'icmp.ritHint': 'Molette ou ± pour décaler · Ctrl+←/→ décale le RIT si actif', 'icmp.bandsAntenna': 'Bandes & Antenne', 'icmp.bandCurrent': 'Le poste est sur {b} m', 'icmp.antenna': 'Antenne', 'icmp.passband': 'Passe-bande / Notch', 'icmp.pbtCenter': 'Centrer PBT', 'icmp.manualNotch': 'Notch manuel — active MN, puis règle la position', 'icmp.squelch': 'Squelch', 'icmp.powerOnHint': 'Allumer la radio (démarre en ~15 s)', 'icmp.powerOffHint': 'Éteindre la radio', 'icmp.powerOffConfirm': 'Éteindre la radio ?',
   'rst.clickToFill': 'Clic pour remplir le RST tx depuis le signal',
@@ -962,7 +962,7 @@ const fr: Dict = {
   'aud.noneDefault': '— aucun / défaut système —', 'aud.defaultTag': '(défaut)',
   'aud.fromRadioShort': 'Depuis la radio', 'aud.toRadioShort': 'Vers la radio', 'aud.explainFrom': "= ce que vous recevez (utilisé par l'enregistreur de QSO).", 'aud.explainTo': '= où sont émis les messages du manipulateur vocal.',
   'aud.monitorTitle': "Écouter l'audio RX du poste (Depuis la radio) sur votre périphérique d'écoute", 'aud.listenRadio': '▶ Écouter la radio', 'aud.stopListening': "■ Arrêter l'écoute",
-  'aud.monitorOn': "Écoute RX active — Depuis la radio → périphérique d'écoute.", 'aud.monitorHint': "Écoute directe du poste (codec USB pour l'instant ; audio réseau plus tard).",
+  'aud.monitorOn': "Écoute RX active — Depuis la radio → périphérique d'écoute.", 'aud.tciTitle': 'Audio de réception SunSDR par TCI (expérimental)', 'aud.tciStart': 'Ouvrir le flux', 'aud.tciStop': 'Fermer le flux', 'aud.tciRec': 'Enregistrer 10 s pour écoute', 'aud.tciRecBusy': 'Enregistrement…', 'aud.tciSilent': 'silence', 'aud.tciRecord': 'Enregistrer les QSO depuis ce flux', 'aud.tciRecordHint': "L'enregistreur prend l'audio de réception sur la radio au lieu d'une carte son — aucun câble virtuel, rien à choisir au-dessus. Ton micro reste enregistré depuis le périphérique sélectionné là-haut.", 'aud.tciHint': "Prend l'audio de réception directement sur la radio via TCI, sans câble audio virtuel ni seconde carte son. Réception seulement pour l'instant — le manipulateur vocal utilise toujours les périphériques ci-dessus. Nécessite le CAT réglé sur TCI.", 'aud.monitorHint': "Écoute directe du poste (codec USB pour l'instant ; audio réseau plus tard).",
   'aud.txTitle': 'Activer le PTT et envoyer votre micro vers le poste (périphérique « Vers la radio »)', 'aud.talkRadio': '🎙 Parler à la radio (TX)', 'aud.stopTalk': '■ Arrêter de parler (TX)',
   'aud.txOn': 'ÉMISSION — micro → Vers la radio, PTT activé. Cliquez pour arrêter.', 'aud.txHint': "Micro direct → poste avec PTT (USB pour l'instant ; TX réseau plus tard).",
   'aud.recorder': 'Enregistreur de QSO', 'aud.recordEvery': 'Enregistrer chaque QSO dans un fichier audio (Depuis la radio + votre micro)', 'aud.recFolder': 'Dossier des enregistrements', 'aud.browse': 'Parcourir…',

frontend/src/version.ts

@@ -1,6 +1,6 @@
 // Single source of truth for the app version shown in the UI (header + About).
 // Bump this on a release (the release script updates it alongside telemetry.go).
-export const APP_VERSION = '0.26.11';
+export const APP_VERSION = '0.26.12';
 
 // Author / credits, shown in Help -> About.
 export const APP_AUTHOR = 'F4BPO';

frontend/wailsjs/go/main/App.d.ts

@@ -119,6 +119,8 @@ export function CheckForUpdate():Promise<main.UpdateInfo>;
 
 export function CheckHamlogKey(arg1:string):Promise<string>;
 
+export function ClearKenwoodRIT():Promise<void>;
+
 export function ClearLookupCache():Promise<void>;
 
 export function CloseAutostartPrograms():Promise<void>;
@@ -487,6 +489,8 @@ export function GetGridScopeSettings():Promise<main.GridScopeSettings>;
 
 export function GetIcomState():Promise<cat.IcomTXState>;
 
+export function GetKenwoodState():Promise<cat.KenwoodTXState>;
+
 export function GetLinkedAmps():Promise<Array<string>>;
 
 export function GetListsSettings():Promise<main.ListsSettings>;
@@ -559,6 +563,8 @@ export function GetSolarData():Promise<solar.Data>;
 
 export function GetSpotColors():Promise<main.SpotColors>;
 
+export function GetSpotMax():Promise<number>;
+
 export function GetSpotTTLMinutes():Promise<number>;
 
 export function GetStartupStatus():Promise<main.StartupStatus>;
@@ -569,6 +575,10 @@ export function GetStationSettings():Promise<main.StationSettings>;
 
 export function GetStationStatus():Promise<Array<main.StationDeviceStatus>>;
 
+export function GetTCIAudioStatus():Promise<cat.TCIAudioStatus>;
+
+export function GetTCIRecordAudio():Promise<boolean>;
+
 export function GetTelemetryEnabled():Promise<boolean>;
 
 export function GetTrackedAwards():Promise<Array<string>>;
@@ -897,8 +907,12 @@ export function RecomputeAllAwardRefs():Promise<number>;
 
 export function RecomputeAwardRefsForCode(arg1:string):Promise<number>;
 
+export function RecordTCIAudio(arg1:number):Promise<string>;
+
 export function RefreshCtyDat():Promise<main.CtyDatInfo>;
 
+export function RefreshKenwood():Promise<void>;
+
 export function RefreshSolar():Promise<void>;
 
 export function RefreshYaesuPanel():Promise<void>;
@@ -1099,8 +1113,38 @@ export function SetDVKLabel(arg1:number,arg2:string):Promise<void>;
 
 export function SetFlexRSTChaseEnabled(arg1:boolean):Promise<void>;
 
+export function SetKenwoodAFGain(arg1:number):Promise<void>;
+
+export function SetKenwoodAGC(arg1:string):Promise<void>;
+
+export function SetKenwoodAntenna(arg1:number):Promise<void>;
+
+export function SetKenwoodAtt(arg1:boolean):Promise<void>;
+
+export function SetKenwoodFilter(arg1:number):Promise<void>;
+
 export function SetKenwoodKeySpeed(arg1:number):Promise<void>;
 
+export function SetKenwoodMicGain(arg1:number):Promise<void>;
+
+export function SetKenwoodNB(arg1:boolean):Promise<void>;
+
+export function SetKenwoodNR(arg1:boolean):Promise<void>;
+
+export function SetKenwoodPower(arg1:number):Promise<void>;
+
+export function SetKenwoodPreamp(arg1:boolean):Promise<void>;
+
+export function SetKenwoodRFGain(arg1:number):Promise<void>;
+
+export function SetKenwoodRIT(arg1:boolean):Promise<void>;
+
+export function SetKenwoodSquelch(arg1:number):Promise<void>;
+
+export function SetKenwoodTX(arg1:boolean):Promise<void>;
+
+export function SetKenwoodXIT(arg1:boolean):Promise<void>;
+
 export function SetLinkedAmps(arg1:Array<string>):Promise<void>;
 
 export function SetMotorFollow(arg1:boolean,arg2:number,arg3:string):Promise<void>;
@@ -1113,8 +1157,12 @@ export function SetPassphrase(arg1:string):Promise<void>;
 
 export function SetScpEnabled(arg1:boolean):Promise<void>;
 
+export function SetSpotMax(arg1:number):Promise<void>;
+
 export function SetSpotTTLMinutes(arg1:number):Promise<void>;
 
+export function SetTCIRecordAudio(arg1:boolean):Promise<void>;
+
 export function SetTelemetryEnabled(arg1:boolean):Promise<void>;
 
 export function SetUIPref(arg1:string,arg2:string):Promise<void>;
@@ -1167,10 +1215,14 @@ export function SetYaesuVOX(arg1:boolean):Promise<void>;
 
 export function StartCWDecoder():Promise<void>;
 
+export function StartTCIAudio(arg1:number,arg2:number):Promise<void>;
+
 export function StationSetRelay(arg1:string,arg2:number,arg3:boolean):Promise<void>;
 
 export function StopCWDecoder():Promise<void>;
 
+export function StopTCIAudio():Promise<void>;
+
 export function SwitchCATRig(arg1:number):Promise<void>;
 
 export function SyncFolderNow():Promise<number>;
@@ -1207,6 +1259,10 @@ export function TestUltrabeam(arg1:main.UltrabeamSettings):Promise<void>;
 
 export function TestWebPublishFTP(arg1:webpub.Config):Promise<string>;
 
+export function ToggleKenwoodATU():Promise<void>;
+
+export function TuneKenwoodATU():Promise<void>;
+
 export function TuneYaesuATU():Promise<void>;
 
 export function TunerGeniusActivate(arg1:number):Promise<void>;

frontend/wailsjs/go/main/App.js

@@ -178,6 +178,10 @@ export function CheckHamlogKey(arg1) {
   return window['go']['main']['App']['CheckHamlogKey'](arg1);
 }
 
+export function ClearKenwoodRIT() {
+  return window['go']['main']['App']['ClearKenwoodRIT']();
+}
+
 export function ClearLookupCache() {
   return window['go']['main']['App']['ClearLookupCache']();
 }
@@ -914,6 +918,10 @@ export function GetIcomState() {
   return window['go']['main']['App']['GetIcomState']();
 }
 
+export function GetKenwoodState() {
+  return window['go']['main']['App']['GetKenwoodState']();
+}
+
 export function GetLinkedAmps() {
   return window['go']['main']['App']['GetLinkedAmps']();
 }
@@ -1058,6 +1066,10 @@ export function GetSpotColors() {
   return window['go']['main']['App']['GetSpotColors']();
 }
 
+export function GetSpotMax() {
+  return window['go']['main']['App']['GetSpotMax']();
+}
+
 export function GetSpotTTLMinutes() {
   return window['go']['main']['App']['GetSpotTTLMinutes']();
 }
@@ -1078,6 +1090,14 @@ export function GetStationStatus() {
   return window['go']['main']['App']['GetStationStatus']();
 }
 
+export function GetTCIAudioStatus() {
+  return window['go']['main']['App']['GetTCIAudioStatus']();
+}
+
+export function GetTCIRecordAudio() {
+  return window['go']['main']['App']['GetTCIRecordAudio']();
+}
+
 export function GetTelemetryEnabled() {
   return window['go']['main']['App']['GetTelemetryEnabled']();
 }
@@ -1734,10 +1754,18 @@ export function RecomputeAwardRefsForCode(arg1) {
   return window['go']['main']['App']['RecomputeAwardRefsForCode'](arg1);
 }
 
+export function RecordTCIAudio(arg1) {
+  return window['go']['main']['App']['RecordTCIAudio'](arg1);
+}
+
 export function RefreshCtyDat() {
   return window['go']['main']['App']['RefreshCtyDat']();
 }
 
+export function RefreshKenwood() {
+  return window['go']['main']['App']['RefreshKenwood']();
+}
+
 export function RefreshSolar() {
   return window['go']['main']['App']['RefreshSolar']();
 }
@@ -2138,10 +2166,70 @@ export function SetFlexRSTChaseEnabled(arg1) {
   return window['go']['main']['App']['SetFlexRSTChaseEnabled'](arg1);
 }
 
+export function SetKenwoodAFGain(arg1) {
+  return window['go']['main']['App']['SetKenwoodAFGain'](arg1);
+}
+
+export function SetKenwoodAGC(arg1) {
+  return window['go']['main']['App']['SetKenwoodAGC'](arg1);
+}
+
+export function SetKenwoodAntenna(arg1) {
+  return window['go']['main']['App']['SetKenwoodAntenna'](arg1);
+}
+
+export function SetKenwoodAtt(arg1) {
+  return window['go']['main']['App']['SetKenwoodAtt'](arg1);
+}
+
+export function SetKenwoodFilter(arg1) {
+  return window['go']['main']['App']['SetKenwoodFilter'](arg1);
+}
+
 export function SetKenwoodKeySpeed(arg1) {
   return window['go']['main']['App']['SetKenwoodKeySpeed'](arg1);
 }
 
+export function SetKenwoodMicGain(arg1) {
+  return window['go']['main']['App']['SetKenwoodMicGain'](arg1);
+}
+
+export function SetKenwoodNB(arg1) {
+  return window['go']['main']['App']['SetKenwoodNB'](arg1);
+}
+
+export function SetKenwoodNR(arg1) {
+  return window['go']['main']['App']['SetKenwoodNR'](arg1);
+}
+
+export function SetKenwoodPower(arg1) {
+  return window['go']['main']['App']['SetKenwoodPower'](arg1);
+}
+
+export function SetKenwoodPreamp(arg1) {
+  return window['go']['main']['App']['SetKenwoodPreamp'](arg1);
+}
+
+export function SetKenwoodRFGain(arg1) {
+  return window['go']['main']['App']['SetKenwoodRFGain'](arg1);
+}
+
+export function SetKenwoodRIT(arg1) {
+  return window['go']['main']['App']['SetKenwoodRIT'](arg1);
+}
+
+export function SetKenwoodSquelch(arg1) {
+  return window['go']['main']['App']['SetKenwoodSquelch'](arg1);
+}
+
+export function SetKenwoodTX(arg1) {
+  return window['go']['main']['App']['SetKenwoodTX'](arg1);
+}
+
+export function SetKenwoodXIT(arg1) {
+  return window['go']['main']['App']['SetKenwoodXIT'](arg1);
+}
+
 export function SetLinkedAmps(arg1) {
   return window['go']['main']['App']['SetLinkedAmps'](arg1);
 }
@@ -2166,10 +2254,18 @@ export function SetScpEnabled(arg1) {
   return window['go']['main']['App']['SetScpEnabled'](arg1);
 }
 
+export function SetSpotMax(arg1) {
+  return window['go']['main']['App']['SetSpotMax'](arg1);
+}
+
 export function SetSpotTTLMinutes(arg1) {
   return window['go']['main']['App']['SetSpotTTLMinutes'](arg1);
 }
 
+export function SetTCIRecordAudio(arg1) {
+  return window['go']['main']['App']['SetTCIRecordAudio'](arg1);
+}
+
 export function SetTelemetryEnabled(arg1) {
   return window['go']['main']['App']['SetTelemetryEnabled'](arg1);
 }
@@ -2274,6 +2370,10 @@ export function StartCWDecoder() {
   return window['go']['main']['App']['StartCWDecoder']();
 }
 
+export function StartTCIAudio(arg1, arg2) {
+  return window['go']['main']['App']['StartTCIAudio'](arg1, arg2);
+}
+
 export function StationSetRelay(arg1, arg2, arg3) {
   return window['go']['main']['App']['StationSetRelay'](arg1, arg2, arg3);
 }
@@ -2282,6 +2382,10 @@ export function StopCWDecoder() {
   return window['go']['main']['App']['StopCWDecoder']();
 }
 
+export function StopTCIAudio() {
+  return window['go']['main']['App']['StopTCIAudio']();
+}
+
 export function SwitchCATRig(arg1) {
   return window['go']['main']['App']['SwitchCATRig'](arg1);
 }
@@ -2354,6 +2458,14 @@ export function TestWebPublishFTP(arg1) {
   return window['go']['main']['App']['TestWebPublishFTP'](arg1);
 }
 
+export function ToggleKenwoodATU() {
+  return window['go']['main']['App']['ToggleKenwoodATU']();
+}
+
+export function TuneKenwoodATU() {
+  return window['go']['main']['App']['TuneKenwoodATU']();
+}
+
 export function TuneYaesuATU() {
   return window['go']['main']['App']['TuneYaesuATU']();
 }

frontend/wailsjs/go/models.ts

@@ -1067,6 +1067,72 @@ export namespace cat {
 	        this.anti_vox = source["anti_vox"];
 	    }
 	}
+	export class KenwoodTXState {
+	    available: boolean;
+	    model?: string;
+	    elecraft: boolean;
+	    mode?: string;
+	    transmitting: boolean;
+	    split: boolean;
+	    split_tx_hz: number;
+	    s_meter: number;
+	    s_meter_raw: number;
+	    power_meter: number;
+	    swr: number;
+	    swr_raw: number;
+	    rf_power: number;
+	    af_gain: number;
+	    rf_gain: number;
+	    mic_gain: number;
+	    squelch: number;
+	    preamp: boolean;
+	    att: boolean;
+	    nb: boolean;
+	    nr: boolean;
+	    agc?: string;
+	    filter_hz: number;
+	    antenna: number;
+	    rit: boolean;
+	    xit: boolean;
+	    key_speed: number;
+	    meters_provisional: boolean;
+	
+	    static createFrom(source: any = {}) {
+	        return new KenwoodTXState(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.available = source["available"];
+	        this.model = source["model"];
+	        this.elecraft = source["elecraft"];
+	        this.mode = source["mode"];
+	        this.transmitting = source["transmitting"];
+	        this.split = source["split"];
+	        this.split_tx_hz = source["split_tx_hz"];
+	        this.s_meter = source["s_meter"];
+	        this.s_meter_raw = source["s_meter_raw"];
+	        this.power_meter = source["power_meter"];
+	        this.swr = source["swr"];
+	        this.swr_raw = source["swr_raw"];
+	        this.rf_power = source["rf_power"];
+	        this.af_gain = source["af_gain"];
+	        this.rf_gain = source["rf_gain"];
+	        this.mic_gain = source["mic_gain"];
+	        this.squelch = source["squelch"];
+	        this.preamp = source["preamp"];
+	        this.att = source["att"];
+	        this.nb = source["nb"];
+	        this.nr = source["nr"];
+	        this.agc = source["agc"];
+	        this.filter_hz = source["filter_hz"];
+	        this.antenna = source["antenna"];
+	        this.rit = source["rit"];
+	        this.xit = source["xit"];
+	        this.key_speed = source["key_speed"];
+	        this.meters_provisional = source["meters_provisional"];
+	    }
+	}
 	export class RigState {
 	    enabled: boolean;
 	    connected: boolean;
@@ -1142,6 +1208,28 @@ export namespace cat {
 	        this.fixed = source["fixed"];
 	    }
 	}
+	export class TCIAudioStatus {
+	    running: boolean;
+	    sample_rate: number;
+	    frames: number;
+	    samples: number;
+	    peak_db: number;
+	    last_err?: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new TCIAudioStatus(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.running = source["running"];
+	        this.sample_rate = source["sample_rate"];
+	        this.frames = source["frames"];
+	        this.samples = source["samples"];
+	        this.peak_db = source["peak_db"];
+	        this.last_err = source["last_err"];
+	    }
+	}
 	export class YaesuTXState {
 	    available: boolean;
 	    model?: string;
@@ -1154,6 +1242,8 @@ export namespace cat {
 	    power_meter: number;
 	    swr_meter: number;
 	    rf_power: number;
+	    max_power: number;
+	    narrow_supported: boolean;
 	    mic_gain: number;
 	    af_gain: number;
 	    rf_gain: number;
@@ -1189,6 +1279,8 @@ export namespace cat {
 	        this.power_meter = source["power_meter"];
 	        this.swr_meter = source["swr_meter"];
 	        this.rf_power = source["rf_power"];
+	        this.max_power = source["max_power"];
+	        this.narrow_supported = source["narrow_supported"];
 	        this.mic_gain = source["mic_gain"];
 	        this.af_gain = source["af_gain"];
 	        this.rf_gain = source["rf_gain"];

internal/audio/rate.go

@@ -0,0 +1,9 @@
+package audio
+
+// RecorderSampleRate is the rate the QSO recorder works in.
+//
+// Exported because a source that is NOT a sound card — the TCI receive stream,
+// the Icom network audio — has to resample into it, and hard-coding 16000 at
+// each of those call sites is how one of them ends up at the wrong speed after
+// this constant is ever changed.
+const RecorderSampleRate = sampleRate

internal/audio/wav.go

@@ -14,6 +14,7 @@ import (
 // any device regardless of its native mix format.
 const (
 	sampleRate    = 16000
+
 	channels      = 1
 	bitsPerSample = 16
 	blockAlign    = channels * bitsPerSample / 8 // bytes per frame (=2)

internal/cat/cat.go

@@ -990,6 +990,30 @@ type KenwoodController interface {
 	SetKeySpeed(int) error
 }
 
+// KenwoodState returns the K3/K4 panel snapshot, or (zero, false) when the
+// active backend is not a Kenwood-dialect rig.
+func (m *Manager) KenwoodState() (KenwoodTXState, bool) {
+	m.mu.RLock()
+	b := m.backend
+	m.mu.RUnlock()
+	if kc, ok := b.(KenwoodPanelController); ok {
+		return kc.KenwoodState(), true
+	}
+	return KenwoodTXState{}, false
+}
+
+// KenwoodPanelDo dispatches a K3/K4 panel control onto the CAT goroutine, so a
+// panel click and the poll loop never share the serial port at the same instant.
+func (m *Manager) KenwoodPanelDo(fn func(KenwoodPanelController) error) error {
+	return m.exec(func(b Backend) error {
+		kc, ok := b.(KenwoodPanelController)
+		if !ok {
+			return fmt.Errorf("active CAT backend is not a Kenwood/Elecraft")
+		}
+		return fn(kc)
+	})
+}
+
 // KenwoodDo dispatches a Kenwood control onto the CAT goroutine.
 func (m *Manager) KenwoodDo(fn func(KenwoodController) error) error {
 	return m.exec(func(b Backend) error {

internal/cat/kenwood.go

@@ -92,6 +92,16 @@ type Kenwood struct {
 	// Commands this rig answered "?;" to — asked once, then never again.
 	unsupported map[string]bool
 
+	// Panel state — the K3/K4 control panel, see kenwood_panel.go. Read on the
+	// same serialised link as everything else, on a slow beat for the settings
+	// and every poll for the meters.
+	panel        KenwoodTXState
+	panelCycle   int
+	panelLoaded  bool
+	metersLogged int
+	powerPeak    meterPeak
+	swrPeak      meterPeak
+
 	// rx holds bytes read but not yet consumed, ACROSS calls to ask.
 	//
 	// It has to survive: a rig answers faster than we ask, so one Read often
@@ -422,6 +432,10 @@ func (k *Kenwood) ReadState() (RigState, error) {
 		k.curRXFreq = s.RxFreqHz
 	}
 	k.lastState = s // cache for the transmit window, where we can't poll
+	// The panel rides on the same poll and the same held mutex: its own reader
+	// would have to take turns on the serial port, and the K3 is slow enough
+	// that two readers taking turns is what makes a dial lag.
+	k.readPanel(s.Mode, s.Split, s.FreqHz)
 	return s, nil
 }
 

internal/cat/kenwood_panel.go

@@ -0,0 +1,554 @@
+package cat
+
+// Elecraft K3/K4 control panel — power, volume, S-meter, SWR, MOX and ATU tune.
+//
+// Built on the Kenwood-dialect backend, because a K3 speaks it: plain ASCII,
+// every command terminated by ';'. What is Elecraft-specific is the vocabulary
+// below, taken from the K3 Programmer's Reference; the K4 accepts the same set.
+//
+// NO K3 WAS AVAILABLE WHILE WRITING THIS, and that shapes it:
+//
+//   - The commands that SET something are the ones the reference documents
+//     unambiguously and whose effect is visible and reversible (PC, AG, TX/RX).
+//   - The meters are the opposite: their scaling differs between models and
+//     firmware, and a wrongly scaled SWR bar is worse than none — it reports a
+//     good match on a bad antenna. So the raw answers are LOGGED, for a real
+//     radio to settle, and until then the panel says the scaling is provisional.
+//
+// The same discipline as the Yaesu meters, which were guessed wrong twice and
+// only settled when an FTDX10 keyed a carrier at two known power levels.
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// KenwoodTXState is what the panel shows.
+type KenwoodTXState struct {
+	Available bool   `json:"available"`
+	Model     string `json:"model,omitempty"`
+	Elecraft  bool   `json:"elecraft"` // a K3/K4 rather than a Kenwood
+	Mode      string `json:"mode,omitempty"`
+
+	Transmitting bool  `json:"transmitting"`
+	Split        bool  `json:"split"`
+	SplitTXHz    int64 `json:"split_tx_hz"`
+
+	// SMeter is 0-100 for the bar. SMeterRaw is what the rig actually answered,
+	// kept because the scaling is not yet confirmed on a real K3 and a number
+	// nobody can check is worth less than the reading it came from.
+	SMeter    int `json:"s_meter"`
+	SMeterRaw int `json:"s_meter_raw"`
+	// PowerMeter is 0-100 while transmitting. SWR is the ratio; 0 means "not
+	// measured", NOT a perfect match.
+	PowerMeter int     `json:"power_meter"`
+	SWR        float64 `json:"swr"`
+	SWRRaw     int     `json:"swr_raw"`
+
+	RFPower int `json:"rf_power"` // watts, the PC setting
+	AFGain  int `json:"af_gain"`  // 0-100
+	RFGain  int `json:"rf_gain"`  // 0-100
+	MicGain int `json:"mic_gain"` // 0-100
+	Squelch int `json:"squelch"`  // 0-100
+
+	// Receive controls. Preamp and attenuator are the K3's single-step ones
+	// (PA/RA); a rig that answers neither leaves them false and the row shows
+	// the state it read, not a state it assumed.
+	Preamp bool   `json:"preamp"`
+	Att    bool   `json:"att"`
+	NB     bool   `json:"nb"`
+	NR     bool   `json:"nr"`
+	AGC    string `json:"agc,omitempty"` // "OFF", "SLOW", "FAST"
+	// FilterHz is the DSP bandwidth in Hz (the K3 reports it in 10 Hz units).
+	FilterHz int `json:"filter_hz"`
+	// Antenna is 1 or 2 on a K3 with the internal ATU, 0 when the rig does not
+	// answer AN — which is also how the panel knows to hide the row rather than
+	// offer a switch that goes nowhere.
+	Antenna int `json:"antenna"`
+
+	RIT      bool `json:"rit"`
+	XIT      bool `json:"xit"`
+	KeySpeed int  `json:"key_speed"` // WPM
+
+	// MetersProvisional says the meter scaling has not been confirmed against a
+	// real radio. The panel says so rather than presenting a guess as a
+	// measurement.
+	MetersProvisional bool `json:"meters_provisional"`
+}
+
+// KenwoodPanelController is the K3/K4 panel capability. Separate from
+// KenwoodController (the CW keyer) so a backend can offer one without the other.
+type KenwoodPanelController interface {
+	KenwoodState() KenwoodTXState
+	RefreshKenwood() error
+	SetKenwoodPower(int) error
+	SetKenwoodAFGain(int) error
+	SetKenwoodRFGain(int) error
+	SetKenwoodMicGain(int) error
+	SetKenwoodSquelch(int) error
+	SetKenwoodPreamp(bool) error
+	SetKenwoodAtt(bool) error
+	SetKenwoodNB(bool) error
+	SetKenwoodNR(bool) error
+	SetKenwoodAGC(string) error
+	SetKenwoodFilter(int) error
+	SetKenwoodAntenna(int) error
+	SetKenwoodRIT(bool) error
+	SetKenwoodXIT(bool) error
+	ClearKenwoodRIT() error
+	SetKenwoodTX(bool) error
+	TuneKenwoodATU() error
+	ToggleKenwoodATU() error
+}
+
+// kenwoodPanelSlowBeat is how many polls pass between full re-reads of the
+// settings. The meters are read every poll; a power setting is not.
+const kenwoodPanelSlowBeat = 8
+
+// KenwoodState returns the panel snapshot.
+func (k *Kenwood) KenwoodState() KenwoodTXState {
+	k.mu.Lock()
+	defer k.mu.Unlock()
+	st := k.panel
+	st.Available = k.port != nil
+	st.Model = k.model
+	st.Elecraft = k.elecraft
+	return st
+}
+
+// RefreshKenwood forces the settings to be re-read on the next poll, so a value
+// changed on the radio's own front panel shows up at once.
+func (k *Kenwood) RefreshKenwood() error {
+	k.mu.Lock()
+	k.panelCycle = kenwoodPanelSlowBeat
+	k.mu.Unlock()
+	return nil
+}
+
+// readPanel refreshes the panel. Called from ReadState with the mutex HELD, so
+// it shares the same serialised link as everything else.
+func (k *Kenwood) readPanel(mode string, split bool, txHz int64) {
+	k.panel.Mode = mode
+	k.panel.Split = split
+	k.panel.SplitTXHz = 0
+	if split {
+		k.panel.SplitTXHz = txHz
+	}
+	k.panel.Transmitting = k.tx
+	k.panel.MetersProvisional = true
+
+	if k.panel.Transmitting {
+		k.readTXMeters()
+	} else {
+		// Cleared, not frozen: a power bar left standing after the carrier drops
+		// reads as a live transmission.
+		k.panel.PowerMeter = 0
+		k.panel.SWR, k.panel.SWRRaw = 0, 0
+		k.powerPeak, k.swrPeak = meterPeak{}, meterPeak{}
+		// The S-meter only means anything while receiving.
+		if v, ok := k.askNum("SM;", "SM", 4); ok {
+			k.panel.SMeterRaw = v
+			k.panel.SMeter = kenwoodSMeterPercent(v)
+		}
+	}
+
+	k.panelCycle++
+	if k.panelLoaded && k.panelCycle < kenwoodPanelSlowBeat {
+		return
+	}
+	k.panelCycle = 0
+	k.panelLoaded = true
+	k.readPanelSettings()
+}
+
+// readPanelSettings re-reads what a knob can change.
+func (k *Kenwood) readPanelSettings() {
+	// PC is watts on both the K3 and the Kenwoods — a setting, not a scale.
+	if v, ok := k.askNum("PC;", "PC", 3); ok {
+		k.panel.RFPower = v
+	}
+	// AF gain. The K3 answers three digits 000-255; a Kenwood answers AG0nnn,
+	// which is why the plain form is tried first and the addressed one after.
+	if v, ok := k.askNum("AG;", "AG", 3); ok {
+		k.panel.AFGain = scale255(v)
+	} else if v, ok := k.askNum("AG0;", "AG0", 3); ok {
+		k.panel.AFGain = scale255(v)
+	}
+	// RF gain. The K3 counts 000-250 in dB of reduction; a Kenwood uses the
+	// familiar 0-255. Both are shown as a percentage, so the slider means the
+	// same thing on either radio.
+	if v, ok := k.askNum("RG;", "RG", 3); ok {
+		k.panel.RFGain = scalePercent(v, k.rfGainFull())
+	}
+	if v, ok := k.askNum("MG;", "MG", 3); ok {
+		k.panel.MicGain = scalePercent(v, k.micGainFull())
+	}
+	if v, ok := k.askNum("SQ;", "SQ", 3); ok {
+		k.panel.Squelch = scalePercent(v, k.squelchFull())
+	} else if v, ok := k.askNum("SQ0;", "SQ0", 3); ok {
+		k.panel.Squelch = scale255(v)
+	}
+	if v, ok := k.askNum("PA;", "PA", 1); ok {
+		k.panel.Preamp = v != 0
+	}
+	if v, ok := k.askNum("RA;", "RA", 2); ok {
+		k.panel.Att = v != 0
+	}
+	if v, ok := k.askNum("NB;", "NB", 1); ok {
+		k.panel.NB = v != 0
+	}
+	if v, ok := k.askNum("NR;", "NR", 1); ok {
+		k.panel.NR = v != 0
+	}
+	if v, ok := k.askNum("GT;", "GT", 3); ok {
+		k.panel.AGC = kenwoodAGCName(v)
+	}
+	// Filter width. The K3 answers BW in 10 Hz units (BW0270 = 2.7 kHz); a
+	// Kenwood that does not implement it says nothing and the row stays as it
+	// was rather than showing a zero-width filter.
+	if v, ok := k.askNum("BW;", "BW", 4); ok && v > 0 {
+		k.panel.FilterHz = v * 10
+	}
+	// Antenna. Only a K3 with the internal ATU answers; 0 means "this radio has
+	// no antenna switching", which is what hides the row.
+	if v, ok := k.askNum("AN;", "AN", 1); ok {
+		k.panel.Antenna = v
+	}
+	if v, ok := k.askNum("RT;", "RT", 1); ok {
+		k.panel.RIT = v != 0
+	}
+	if v, ok := k.askNum("XT;", "XT", 1); ok {
+		k.panel.XIT = v != 0
+	}
+	if v, ok := k.askNum("KS;", "KS", 3); ok {
+		k.panel.KeySpeed = v
+	}
+}
+
+// The full-scale value of the analogue controls differs between an Elecraft and
+// a Kenwood, and using one rig's scale on the other silently halves or doubles
+// every setting. Kept as three small functions rather than a table so each one
+// carries the range it comes from.
+func (k *Kenwood) rfGainFull() int {
+	if k.elecraft {
+		return 250 // K3: 000-250, dB of reduction
+	}
+	return 255
+}
+
+func (k *Kenwood) micGainFull() int {
+	if k.elecraft {
+		return 60 // K3: 000-060
+	}
+	return 255
+}
+
+func (k *Kenwood) squelchFull() int {
+	if k.elecraft {
+		return 29 // K3: 000-029
+	}
+	return 255
+}
+
+// scalePercent turns a raw value into 0-100 against its own full scale.
+func scalePercent(v, full int) int {
+	if full <= 0 || v <= 0 {
+		return 0
+	}
+	if v >= full {
+		return 100
+	}
+	return v * 100 / full
+}
+
+// kenwoodAGCName decodes GT. The K3 answers 000 (off), 002 (slow) or 004
+// (fast); a Kenwood uses the same three values for the same three states.
+func kenwoodAGCName(v int) string {
+	switch {
+	case v == 0:
+		return "OFF"
+	case v <= 2:
+		return "SLOW"
+	default:
+		return "FAST"
+	}
+}
+
+// kenwoodAGCValue is the inverse, for the buttons.
+func kenwoodAGCValue(name string) int {
+	switch strings.ToUpper(strings.TrimSpace(name)) {
+	case "OFF":
+		return 0
+	case "SLOW":
+		return 2
+	default:
+		return 4
+	}
+}
+
+// kenwoodMeterProbes are the candidate meter commands, asked once per
+// transmission burst so a real radio can settle what they mean.
+//
+// They are NOT interchangeable — BG is a bargraph position, SM during transmit
+// is something else again — which is exactly why the log records which one
+// answered and what it said, next to the power SETTING: the meter that tracks a
+// known carrier at two different power levels is the power meter, and no amount
+// of reading the reference settles that as well as one transmission does.
+var kenwoodMeterProbes = []struct {
+	cmd    string
+	prefix string
+	digits int
+}{
+	{"SM;", "SM", 4},
+	{"BG;", "BG", 2},
+	{"SW;", "SW", 4},
+	{"PO;", "PO", 3},
+}
+
+// readTXMeters reads the transmit meters.
+func (k *Kenwood) readTXMeters() {
+	now := time.Now()
+	if v, ok := k.askNum("BG;", "BG", 2); ok {
+		k.panel.PowerMeter = k.powerPeak.update(kenwoodBargraphPercent(v), now)
+	}
+	if v, ok := k.askNum("SW;", "SW", 4); ok {
+		k.panel.SWRRaw = v
+		// Tenths of a ratio, provisionally: 15 → 1.5. Reported as raw as well,
+		// so the log can correct this without anyone having to trust the bar.
+		if v > 0 {
+			k.panel.SWR = float64(k.swrPeak.update(v, now)) / 10
+		}
+	}
+	if k.metersLogged >= 20 {
+		return
+	}
+	k.metersLogged++
+	raw := make([]string, 0, len(kenwoodMeterProbes))
+	for _, p := range kenwoodMeterProbes {
+		if v, ok := k.askNum(p.cmd, p.prefix, p.digits); ok {
+			raw = append(raw, fmt.Sprintf("%s=%d", strings.TrimSuffix(p.cmd, ";"), v))
+		} else {
+			raw = append(raw, strings.TrimSuffix(p.cmd, ";")+"=-")
+		}
+	}
+	debugLog.Printf("kenwood: TX meters at PC=%dW: %s (compare two power settings, and a known SWR)",
+		k.panel.RFPower, strings.Join(raw, " "))
+}
+
+// kenwoodSMeterPercent turns the S-meter answer into a bar percentage.
+//
+// The K3 reports 0-21 across S0…S9+60, which is not a linear dB scale but is
+// what its own display shows — and matching the radio's own bar is something an
+// operator can check at a glance. A Kenwood answers 0-30 on the same command;
+// both are covered by clamping rather than by guessing which rig is on the
+// other end.
+func kenwoodSMeterPercent(v int) int {
+	switch {
+	case v <= 0:
+		return 0
+	case v >= 30:
+		return 100
+	}
+	return v * 100 / 21
+}
+
+// kenwoodBargraphPercent scales the K3 bargraph (0-12 segments) to the bar.
+func kenwoodBargraphPercent(v int) int {
+	switch {
+	case v <= 0:
+		return 0
+	case v >= 12:
+		return 100
+	}
+	return v * 100 / 12
+}
+
+// SetKenwoodPower sets the transmit power, in watts.
+//
+// A K3 takes PC000-110: 110 rather than 100 because the radio will make a
+// little over its rated output and the reference says so. A Kenwood of the
+// TS-890 sort goes to 200, so the ceiling follows the radio rather than being
+// one number that is wrong for one of them.
+func (k *Kenwood) SetKenwoodPower(w int) error {
+	max := 200
+	if k.elecraft {
+		max = 110
+	}
+	if w < 0 {
+		w = 0
+	}
+	if w > max {
+		w = max
+	}
+	return k.setPanel(fmt.Sprintf("PC%03d;", w))
+}
+
+// SetKenwoodAFGain sets the volume, 0-100, scaled to the rig's 0-255.
+func (k *Kenwood) SetKenwoodAFGain(p int) error {
+	if p < 0 {
+		p = 0
+	}
+	if p > 100 {
+		p = 100
+	}
+	return k.setPanel(fmt.Sprintf("AG%03d;", p*255/100))
+}
+
+// SetKenwoodRFGain sets the RF gain, 0-100 of the rig's own scale.
+func (k *Kenwood) SetKenwoodRFGain(p int) error {
+	return k.setPanel(fmt.Sprintf("RG%03d;", clampPercentTo(p, k.rfGainFull())))
+}
+
+func (k *Kenwood) SetKenwoodMicGain(p int) error {
+	return k.setPanel(fmt.Sprintf("MG%03d;", clampPercentTo(p, k.micGainFull())))
+}
+
+func (k *Kenwood) SetKenwoodSquelch(p int) error {
+	return k.setPanel(fmt.Sprintf("SQ%03d;", clampPercentTo(p, k.squelchFull())))
+}
+
+func (k *Kenwood) SetKenwoodPreamp(on bool) error {
+	return k.setPanel(fmt.Sprintf("PA%d;", boolDigit(on)))
+}
+
+// SetKenwoodAtt switches the attenuator. Two digits: the K3 reads RA01 as its
+// single 10 dB pad, and a Kenwood with several steps takes the first one.
+func (k *Kenwood) SetKenwoodAtt(on bool) error {
+	if on {
+		return k.setPanel("RA01;")
+	}
+	return k.setPanel("RA00;")
+}
+
+func (k *Kenwood) SetKenwoodNB(on bool) error {
+	return k.setPanel(fmt.Sprintf("NB%d;", boolDigit(on)))
+}
+
+func (k *Kenwood) SetKenwoodNR(on bool) error {
+	return k.setPanel(fmt.Sprintf("NR%d;", boolDigit(on)))
+}
+
+func (k *Kenwood) SetKenwoodAGC(name string) error {
+	return k.setPanel(fmt.Sprintf("GT%03d;", kenwoodAGCValue(name)))
+}
+
+// SetKenwoodFilter sets the DSP bandwidth in Hz — sent in the K3's 10 Hz units.
+func (k *Kenwood) SetKenwoodFilter(hz int) error {
+	if hz < 50 {
+		hz = 50
+	}
+	if hz > 4000 {
+		hz = 4000
+	}
+	return k.setPanel(fmt.Sprintf("BW%04d;", hz/10))
+}
+
+// SetKenwoodAntenna selects antenna 1 or 2 (a K3 with the internal ATU).
+func (k *Kenwood) SetKenwoodAntenna(n int) error {
+	if n < 1 {
+		n = 1
+	}
+	if n > 2 {
+		n = 2
+	}
+	return k.setPanel(fmt.Sprintf("AN%d;", n))
+}
+
+func (k *Kenwood) SetKenwoodRIT(on bool) error {
+	return k.setPanel(fmt.Sprintf("RT%d;", boolDigit(on)))
+}
+
+func (k *Kenwood) SetKenwoodXIT(on bool) error {
+	return k.setPanel(fmt.Sprintf("XT%d;", boolDigit(on)))
+}
+
+// ClearKenwoodRIT zeroes the RIT/XIT offset, both at once — which is what RC
+// does and what the operator means by "clear it".
+func (k *Kenwood) ClearKenwoodRIT() error {
+	return k.setPanel("RC;")
+}
+
+// clampPercentTo maps 0-100 onto a rig's own full scale.
+func clampPercentTo(p, full int) int {
+	if p < 0 {
+		p = 0
+	}
+	if p > 100 {
+		p = 100
+	}
+	return p * full / 100
+}
+
+// SetKenwoodTX keys or unkeys the transmitter — the panel's MOX.
+//
+// Goes through SetPTT rather than writing TX;/RX; here, so the backend's own
+// idea of transmitting stays true: it suppresses polling while the carrier is
+// up, and a panel that keyed behind its back would leave it polling a rig that
+// answers "?;" to everything.
+func (k *Kenwood) SetKenwoodTX(on bool) error {
+	return k.SetPTT(on)
+}
+
+// The K3 has no dedicated "tune" command: the reference exposes the front panel
+// instead, through SWT (tap) and SWH (hold) with a switch number from Table 7.
+// Switch 19 is the ATU row — TAP starts a tuning cycle, HOLD puts the tuner in
+// or out of line.
+//
+// It was written as SWT20 first, from memory of the reference rather than from
+// the table, and 20 is not an ATU switch at all. Corrected against Table 7 of
+// the K3 Programmer's Reference, which an operator read out for us. Every send
+// is still logged: a switch-emulation command presses a real button on a real
+// front panel, so what OpsLog sent must be recoverable afterwards.
+const (
+	kenwoodATUTune   = "SWT19;" // tap ATU TUNE — start a tuning cycle
+	kenwoodATUToggle = "SWH19;" // hold ATU — tuner in line / bypassed
+)
+
+// TuneKenwoodATU starts an ATU tuning cycle.
+func (k *Kenwood) TuneKenwoodATU() error {
+	debugLog.Printf("kenwood: ATU tune — sending %q (K3 Table 7: tap of the ATU TUNE switch)", kenwoodATUTune)
+	return k.setPanel(kenwoodATUTune)
+}
+
+// ToggleKenwoodATU puts the tuner in line or bypasses it — the HOLD of the same
+// switch, which is how it is done on the radio itself.
+func (k *Kenwood) ToggleKenwoodATU() error {
+	debugLog.Printf("kenwood: ATU in/out — sending %q (K3 Table 7: hold of the ATU switch)", kenwoodATUToggle)
+	return k.setPanel(kenwoodATUToggle)
+}
+
+// setPanel writes one command and schedules a settings re-read, so the panel
+// shows what the radio did rather than what it was asked to do.
+func (k *Kenwood) setPanel(cmd string) error {
+	k.mu.Lock()
+	defer k.mu.Unlock()
+	if k.port == nil {
+		return fmt.Errorf("kenwood: not connected")
+	}
+	if err := k.write(cmd); err != nil {
+		return err
+	}
+	k.panelCycle = kenwoodPanelSlowBeat // re-read on the next poll
+	return nil
+}
+
+// askNum asks a command and parses its numeric body. ask() already remembers
+// what this rig answered "?;" to and refuses to ask it again, so an unsupported
+// meter costs one timeout for the life of the session, not one per poll.
+func (k *Kenwood) askNum(cmd, prefix string, digits int) (int, bool) {
+	r, err := k.ask(cmd)
+	if err != nil {
+		return 0, false
+	}
+	body := strings.TrimSuffix(strings.TrimPrefix(r, prefix), ";")
+	if len(body) < digits {
+		return 0, false
+	}
+	n, err := strconv.Atoi(strings.TrimSpace(body[:digits]))
+	if err != nil {
+		return 0, false
+	}
+	return n, true
+}

internal/cat/tci.go

@@ -34,6 +34,11 @@ type TCI struct {
 	OnSpotClick   func(callsign string, freqHz int64)
 	unhandledSeen map[string]bool // log each unknown TCI message type once
 
+	// audio holds the receive-audio stream — see tci_audio.go. TCI carries it
+	// on this same WebSocket, which is what lets a SunSDR record and decode
+	// without a virtual audio cable in the way.
+	audio tciAudio
+
 	mu         sync.Mutex // guards conn + writes + state
 	conn       *websocket.Conn
 	dialCancel context.CancelFunc // cancels an in-flight Connect dial (Interrupt/Stop)
@@ -354,10 +359,18 @@ func (t *TCI) send(cmd string) error {
 // connection closes.
 func (t *TCI) reader(conn *websocket.Conn) {
 	for {
-		_, data, err := conn.ReadMessage()
+		mt, data, err := conn.ReadMessage()
 		if err != nil {
 			break
 		}
+		// TEXT frames are commands, BINARY frames are streams. The type used to
+		// be ignored and every frame split on ';' — harmless only for as long as
+		// no stream was ever opened, since audio bytes would then have been fed
+		// to the command parser a hundred times a second.
+		if wsMessageIsBinary(mt) {
+			t.handleBinary(data)
+			continue
+		}
 		// A frame may carry several ";"-terminated commands.
 		for _, cmd := range strings.Split(string(data), ";") {
 			t.handle(strings.TrimSpace(cmd))
@@ -393,6 +406,16 @@ func (t *TCI) handle(msg string) {
 	switch strings.ToLower(name) {
 	case "device":
 		t.device = strings.TrimSpace(args)
+	// The radio ANNOUNCES its audio format at connect —
+	// "audio_stream_sample_type:float32" and "audio_stream_channels:2" — which
+	// is better evidence than anything derived from a frame, and it arrives
+	// before the first frame does. Both were being logged as unhandled.
+	case "audio_stream_sample_type":
+		t.audio.declaredType = strings.TrimSpace(args)
+	case "audio_stream_channels":
+		if n, err := strconv.Atoi(strings.TrimSpace(args)); err == nil && n > 0 && n <= 8 {
+			t.audio.declaredChans = n
+		}
 	case "ready", "start":
 		t.ready = true
 	case "stop":

internal/cat/tci_audio.go

@@ -0,0 +1,335 @@
+//go:build windows
+
+package cat
+
+// TCI audio — receiving the radio's audio over the same WebSocket that carries
+// the commands, so a SunSDR needs no virtual audio cable.
+//
+// TCI mixes two kinds of frame on one socket: TEXT frames are the commands
+// ("trx:0,true;"), BINARY frames are streams. A binary frame is a fixed header
+// followed by float32 samples:
+//
+//	uint32 receiver     which receiver the stream belongs to
+//	uint32 sampleRate   Hz
+//	uint32 format       0 = float32
+//	uint32 codec        0 = uncompressed
+//	uint32 crc          unused in practice
+//	uint32 length       samples in the payload
+//	uint32 type         which stream this is (see tciStream*)
+//	uint32 reserved[9]
+//	float32 payload[…]  stereo, interleaved
+//
+// The stream is asked for with "audio_samplerate:" then "audio_start:<rx>;",
+// and stopped with "audio_stop:<rx>;".
+//
+// NOTHING HERE IS CONFIRMED ON A RADIO YET. The layout above is read from the
+// TCI documentation, and the stream-type numbers in particular are the sort of
+// detail a document gets right and a memory of it does not — so every header is
+// logged for the first few seconds of a session, and the numbers the radio
+// actually sends will settle it. Same discipline as the Yaesu meters and the
+// Flex spot feed: measure on the real thing, then write the constant down.
+
+import (
+	"encoding/binary"
+	"fmt"
+	"math"
+	"sync"
+	"time"
+
+	"github.com/gorilla/websocket"
+)
+
+// TCI stream types. RX audio is the one this file consumes; the others are
+// named so a log line says what arrived rather than "type 3".
+const (
+	tciStreamIQ       = 0
+	tciStreamRXAudio  = 1
+	tciStreamTXAudio  = 2
+	tciStreamTXChrono = 3
+)
+
+// tciHeaderWords is the header length in uint32 words (7 named + 9 reserved).
+const tciHeaderWords = 16
+
+// tciHeaderBytes is the same in bytes.
+const tciHeaderBytes = tciHeaderWords * 4
+
+// tciAudioProbeMax bounds the header logging. Enough frames to see the shape
+// and the rate; few enough that an evening of listening does not fill the log.
+const tciAudioProbeMax = 40
+
+// TCIAudioStatus is what the panel polls while testing the stream.
+type TCIAudioStatus struct {
+	Running    bool   `json:"running"`
+	SampleRate int    `json:"sample_rate"`
+	Frames     int64  `json:"frames"`  // binary frames accepted
+	Samples    int64  `json:"samples"` // audio samples decoded
+	// PeakDB is the loudest sample of the last second, in dBFS: the one number
+	// that says "audio is really arriving" rather than "a socket is open".
+	PeakDB  float64 `json:"peak_db"`
+	LastErr string  `json:"last_err,omitempty"`
+}
+
+// tciAudio is the receive-side state, kept on the backend so it lives exactly
+// as long as the connection does.
+type tciAudio struct {
+	mu      sync.Mutex
+	want    bool // the host asked for audio
+	rx      int  // which receiver
+	rate    int
+	frames  int64
+	samples int64
+	peak    float64
+	peakAt  time.Time
+	probeByType map[int]int
+	lastErr     string
+	// widthLogged keeps the one-line note about the sample width to once a
+	// session — it is a fact about the radio, not an event.
+	widthLogged bool
+	// What the radio SAID about its stream at connect (audio_stream_sample_type,
+	// audio_stream_channels). Its own declaration, and it arrives before the
+	// first frame — the frame arithmetic below stays as the check on it rather
+	// than as the only source.
+	declaredType  string
+	declaredChans int
+
+	// OnSamples receives decoded MONO samples (the two channels averaged) at
+	// the negotiated rate. Mono because everything downstream — the QSO
+	// recorder, the CW decoder — works on one channel, and a receiver's two
+	// channels carry the same audio.
+	OnSamples func(rate int, samples []float32)
+}
+
+// StartTCIAudio asks the radio to stream receiver rx's audio.
+func (t *TCI) StartTCIAudio(rx, rate int) error {
+	if rate <= 0 {
+		rate = 48000
+	}
+	t.audio.mu.Lock()
+	t.audio.want = true
+	t.audio.rx = rx
+	t.audio.rate = rate
+	t.audio.frames, t.audio.samples, t.audio.peak = 0, 0, 0
+	t.audio.lastErr = ""
+	t.audio.mu.Unlock()
+
+	// Sample rate first: the radio applies it to the stream it is about to
+	// open, and asking afterwards restarts the stream on some firmware.
+	if err := t.send(fmt.Sprintf("audio_samplerate:%d;", rate)); err != nil {
+		return err
+	}
+	return t.send(fmt.Sprintf("audio_start:%d;", rx))
+}
+
+// SetTCIAudioSink installs (or removes) the consumer of the decoded samples.
+//
+// One sink, not a list: today it is a test recording, tomorrow the QSO
+// recorder, and two consumers of a live stream would need a policy about which
+// one wins that nothing yet has an opinion about.
+func (t *TCI) SetTCIAudioSink(fn func(rate int, samples []float32)) {
+	t.audio.mu.Lock()
+	t.audio.OnSamples = fn
+	t.audio.mu.Unlock()
+}
+
+// StopTCIAudio closes the stream.
+func (t *TCI) StopTCIAudio() error {
+	t.audio.mu.Lock()
+	t.audio.want = false
+	rx := t.audio.rx
+	t.audio.mu.Unlock()
+	return t.send(fmt.Sprintf("audio_stop:%d;", rx))
+}
+
+// TCIAudioStatus reports what has arrived.
+func (t *TCI) TCIAudioStatus() TCIAudioStatus {
+	t.audio.mu.Lock()
+	defer t.audio.mu.Unlock()
+	st := TCIAudioStatus{
+		Running:    t.audio.want,
+		SampleRate: t.audio.rate,
+		Frames:     t.audio.frames,
+		Samples:    t.audio.samples,
+		LastErr:    t.audio.lastErr,
+	}
+	// A peak older than a second is not a level, it is a memory. Reported as
+	// silence rather than left standing, so a stream that has stopped arriving
+	// looks stopped.
+	if time.Since(t.audio.peakAt) < time.Second && t.audio.peak > 0 {
+		st.PeakDB = 20 * math.Log10(t.audio.peak)
+	} else {
+		st.PeakDB = -99
+	}
+	return st
+}
+
+// handleBinary decodes one binary WebSocket frame.
+//
+// Called from the reader goroutine. Anything malformed is counted and dropped:
+// a stream frame is not worth breaking the command connection over, and the
+// command connection is what keeps the radio usable.
+func (t *TCI) handleBinary(data []byte) {
+	if len(data) < tciHeaderBytes {
+		t.audioErr(fmt.Sprintf("binary frame of %d bytes is shorter than a header", len(data)))
+		return
+	}
+	le := binary.LittleEndian
+	receiver := int(le.Uint32(data[0:]))
+	rate := int(le.Uint32(data[4:]))
+	format := le.Uint32(data[8:])
+	codec := le.Uint32(data[12:])
+	length := int(le.Uint32(data[20:]))
+	stype := int(le.Uint32(data[24:]))
+
+	// Counted PER STREAM TYPE, not overall.
+	//
+	// A single counter was spent on the first forty receive-audio frames, which
+	// arrive twenty-four times a second — so a transmit-chrono or transmit-audio
+	// frame, the two this needs to see before the voice keyer can be written,
+	// would never have been logged at all. They only appear once the operator
+	// keys the radio, long after any global budget is gone.
+	t.audio.mu.Lock()
+	if t.audio.probeByType == nil {
+		t.audio.probeByType = map[int]int{}
+	}
+	probe := t.audio.probeByType[stype]
+	if probe < tciAudioProbeMax {
+		t.audio.probeByType[stype]++
+	}
+	t.audio.mu.Unlock()
+	if probe < tciAudioProbeMax {
+		debugLog.Printf("TCI: binary frame — rx=%d rate=%d format=%d codec=%d length=%d type=%d payload=%d bytes",
+			receiver, rate, format, codec, length, stype, len(data)-tciHeaderBytes)
+	}
+
+	if stype != tciStreamRXAudio {
+		// IQ, transmit audio, chrono. Nothing consumes them yet — but the chrono
+		// frames are what a voice keyer over TCI would have to answer, and their
+		// size and cadence cannot be guessed from the documentation. They are
+		// logged (per type, see above) and dropped.
+		return
+	}
+	if codec != 0 {
+		t.audioErr(fmt.Sprintf("stream is codec=%d, and nothing here decodes a compressed stream", codec))
+		return
+	}
+
+	// The FORMAT number is decided by measurement, not by the number itself.
+	//
+	// A real SunSDR answered format=3, where the code expected 0 — and 0 was a
+	// guess from reading the documentation, which is exactly the kind of detail
+	// a memory of a document gets wrong. Rather than swap one magic number for
+	// another, the sample width is derived from what arrived: the header says
+	// how many samples the payload holds, so the bytes per sample follow from
+	// dividing. That is true whatever number the format field carries, on this
+	// firmware and the next.
+	payload := data[tciHeaderBytes:]
+	if len(payload) == 0 || length <= 0 {
+		return
+	}
+	width := len(payload) / length
+	var n int
+	switch width {
+	case 4:
+		n = len(payload) / 4 // float32
+	case 2:
+		n = len(payload) / 2 // 16-bit PCM
+	default:
+		t.audioErr(fmt.Sprintf("frame carries %d bytes for %d samples (format=%d) — not a width this reads",
+			len(payload), length, format))
+		return
+	}
+	if n == 0 {
+		return
+	}
+	// Under the lock like the rest of the counters: the reader is the only
+	// writer today, but a fact about the radio that is read from another
+	// goroutine has no business being the one field left unguarded.
+	t.audio.mu.Lock()
+	first := !t.audio.widthLogged
+	t.audio.widthLogged = true
+	t.audio.mu.Unlock()
+	if first {
+		debugLog.Printf("TCI: audio is %d bytes per sample at %d Hz (format field says %d)", width, rate, format)
+	}
+	// Stereo interleaved → mono. Both channels of a receiver carry the same
+	// audio, and everything downstream works on one.
+	// How many channels are interleaved. The radio says so at connect; two is
+	// the fallback, which is what every SunSDR seen so far streams.
+	t.audio.mu.Lock()
+	chans := t.audio.declaredChans
+	t.audio.mu.Unlock()
+	if chans <= 0 {
+		chans = 2
+	}
+	mono := make([]float32, 0, n/chans+1)
+	var peak float64
+	sample := func(i int) float32 {
+		if width == 2 {
+			// 16-bit PCM, scaled to the same -1…1 the rest of the audio path
+			// works in, so a change of format cannot change what a level means.
+			return float32(int16(le.Uint16(payload[i*2:]))) / 32768
+		}
+		return math.Float32frombits(le.Uint32(payload[i*4:]))
+	}
+	for i := 0; i+chans-1 < n; i += chans {
+		var sum float32
+		for c := 0; c < chans; c++ {
+			sum += sample(i + c)
+		}
+		v := sum / float32(chans)
+		if a := math.Abs(float64(v)); a > peak {
+			peak = a
+		}
+		mono = append(mono, v)
+	}
+
+	t.audio.mu.Lock()
+	t.audio.frames++
+	t.audio.samples += int64(len(mono))
+	if rate > 0 {
+		t.audio.rate = rate
+	}
+	if peak > t.audio.peak || time.Since(t.audio.peakAt) > time.Second {
+		t.audio.peak = peak
+		t.audio.peakAt = time.Now()
+	}
+	cb := t.audio.OnSamples
+	t.audio.mu.Unlock()
+
+	if cb != nil {
+		cb(rate, mono)
+	}
+}
+
+// audioErr records a decoding complaint, once, so the panel can show it without
+// the log filling with the same line at fifty frames a second.
+func (t *TCI) audioErr(msg string) {
+	t.audio.mu.Lock()
+	first := t.audio.lastErr != msg
+	t.audio.lastErr = msg
+	t.audio.mu.Unlock()
+	if first {
+		debugLog.Printf("TCI: audio: %s", msg)
+	}
+}
+
+// resumeAudio re-opens the stream after a reconnect, if the host had asked for
+// it. A dropped WebSocket takes the audio with it, and an operator who switched
+// recording on does not expect to switch it on again.
+func (t *TCI) resumeAudio() {
+	t.audio.mu.Lock()
+	want, rx, rate := t.audio.want, t.audio.rx, t.audio.rate
+	t.audio.mu.Unlock()
+	if !want {
+		return
+	}
+	if err := t.StartTCIAudio(rx, rate); err != nil {
+		debugLog.Printf("TCI: re-opening the audio stream failed: %v", err)
+	}
+}
+
+// wsMessageIsBinary keeps the type test in one place — the reader used to
+// ignore the message type entirely and split every frame on ';', which would
+// have fed audio bytes to the command parser the moment a stream was opened.
+func wsMessageIsBinary(mt int) bool { return mt == websocket.BinaryMessage }

internal/cat/tci_manager.go

@@ -0,0 +1,39 @@
+//go:build windows
+
+package cat
+
+import "fmt"
+
+// TCIAudioController is the receive-audio capability of the TCI backend, kept
+// as an interface for the same reason as the Flex and Yaesu ones: the host asks
+// the manager, and a station running something else gets a clear "this backend
+// does not do that" instead of a nil dereference.
+type TCIAudioController interface {
+	StartTCIAudio(rx, rate int) error
+	StopTCIAudio() error
+	TCIAudioStatus() TCIAudioStatus
+}
+
+// TCIAudioState returns the stream's state, or (zero, false) when the active
+// backend is not a TCI radio.
+func (m *Manager) TCIAudioState() (TCIAudioStatus, bool) {
+	m.mu.RLock()
+	b := m.backend
+	m.mu.RUnlock()
+	if tc, ok := b.(TCIAudioController); ok {
+		return tc.TCIAudioStatus(), true
+	}
+	return TCIAudioStatus{}, false
+}
+
+// TCIAudioDo dispatches an audio command onto the CAT goroutine, like every
+// other backend-specific control.
+func (m *Manager) TCIAudioDo(fn func(TCIAudioController) error) error {
+	return m.exec(func(b Backend) error {
+		tc, ok := b.(TCIAudioController)
+		if !ok {
+			return fmt.Errorf("active CAT backend is not a TCI radio")
+		}
+		return fn(tc)
+	})
+}

internal/cat/yaesu_panel.go

@@ -43,7 +43,15 @@ type YaesuTXState struct {
 	PowerMeter int   `json:"power_meter"` // 0-100, TX only
 	SWRMeter   int   `json:"swr_meter"`   // 0-100, TX only
 
-	RFPower int    `json:"rf_power"` // watts
+	RFPower int `json:"rf_power"` // watts
+	// MaxPower is what this model can actually be set to, so the slider stops
+	// where the radio does. An FTDX101MP is a 200 W transmitter and its operator
+	// could not ask for more than 100 W — the slider, not the rig, was the limit.
+	MaxPower int `json:"max_power"`
+	// NarrowSupported says the rig answered NA at all. A button that reports a
+	// state the radio never gave, and does nothing when pressed, is worse than
+	// an absent one: it looks like a fault in the radio.
+	NarrowSupported bool `json:"narrow_supported"`
 	MicGain int    `json:"mic_gain"` // 0-100
 	AFGain  int    `json:"af_gain"`  // 0-100
 	RFGain  int    `json:"rf_gain"`  // 0-100
@@ -110,9 +118,29 @@ func (y *Yaesu) YaesuState() YaesuTXState {
 	st := y.panel
 	st.Available = y.port != nil
 	st.Model = y.model
+	st.MaxPower = yaesuMaxPower(y.model, st.RFPower)
 	return st
 }
 
+// yaesuMaxPower is how far the power slider may go on this model.
+//
+// The rig itself is never asked — there is no CAT command for "how much power
+// can you make" — so it comes from the model name, with one safeguard: a rig
+// REPORTING more than the table expects is believed, because it has just proved
+// what it can do. Anything unknown gets 100 W, which is the family default and
+// errs towards asking for too little.
+func yaesuMaxPower(model string, reported int) int {
+	max := 100
+	switch {
+	case strings.Contains(model, "101MP"), strings.Contains(model, "5000"), strings.Contains(model, "9000"):
+		max = 200
+	}
+	if reported > max {
+		max = reported
+	}
+	return max
+}
+
 // readPanel refreshes the meters, and the settings on the slower beat. Called
 // from ReadState with the mutex HELD, so it shares the same serialised link.
 func (y *Yaesu) readPanel(mode string, split bool, txHz int64) {
@@ -226,8 +254,15 @@ func (y *Yaesu) readPanelSettings() {
 	if v, ok := y.askNum("PC;", "PC", 3); ok {
 		y.panel.RFPower = v // watts, not a 0-255 scale
 	}
+	// MIC GAIN IS 0-100, not 0-255.
+	//
+	// It was read through the 0-255 scale like the audio gains, so an FTDX101
+	// set to 80 showed 38 — and worse, writing sent 80 → 204, outside the range
+	// the rig accepts, so the setting was refused and the slider sprang back to
+	// where it had been. Reported from a real FTDX101; the CAT reference gives
+	// MG000-100 for the whole current family.
 	if v, ok := y.askNum("MG;", "MG", 3); ok {
-		y.panel.MicGain = scale255(v)
+		y.panel.MicGain = clampInt(v, 0, 100)
 	}
 	if v, ok := y.askNum("AG0;", "AG0", 3); ok {
 		y.panel.AFGain = scale255(v)
@@ -276,6 +311,7 @@ func (y *Yaesu) readPanelSettings() {
 	}
 	if v, ok := y.askNum("NA0;", "NA0", 1); ok {
 		y.panel.Narrow = v != 0
+		y.panel.NarrowSupported = true
 	}
 	if v, ok := y.askNum("VX;", "VX", 1); ok {
 		y.panel.VOX = v != 0
@@ -356,7 +392,7 @@ func (y *Yaesu) SetYaesuPower(w int) error {
 }
 
 func (y *Yaesu) SetYaesuMicGain(p int) error {
-	return y.setAndRefresh(fmt.Sprintf("MG%03d;", from100(p)))
+	return y.setAndRefresh(fmt.Sprintf("MG%03d;", clampInt(p, 0, 100)))
 }
 
 func (y *Yaesu) SetYaesuAFGain(p int) error {

internal/extsvc/lotw.go

@@ -265,6 +265,22 @@ func UploadLoTW(ctx context.Context, cfg ServiceConfig, tempDir, adifRecord stri
 	// callsign certificate's validity is silently left out, and reporting that as
 	// success stamped it sent for ever. TQSL says which case it is in its output,
 	// so the message is carried up rather than replaced with a guess.
+	if code != 0 && LogSink != nil {
+		// The ADIF that was handed to TQSL, verbatim, and how TQSL was called.
+		//
+		// TQSL says "no QSOs processed" for several unrelated reasons — already
+		// uploaded, outside the certificate's dates, or a STATION_CALLSIGN that
+		// does not match the station location it was told to sign with — and its
+		// message does not distinguish them. An operator whose contact was
+		// refused, then accepted after a round trip through another logger, is
+		// reporting a difference in THIS RECORD, and there is no way to see it
+		// afterwards: the temp file is deleted as soon as TQSL returns.
+		//
+		// Nothing secret here: it is a QSO, and the key password is not logged.
+		LogSink("lotw: tqsl exit %d for station location %q", code, loc)
+		LogSink("lotw: record was: %s", strings.TrimSpace(adifRecord))
+	}
+
 	switch code {
 	case 0:
 		return UploadResult{OK: true, Message: "uploaded to LoTW"}, nil

telemetry.go

@@ -21,7 +21,7 @@ import (
 
 const (
 	// appVersion is stamped on every heartbeat (and could feed the About box).
-	appVersion = "0.26.11"
+	appVersion = "0.26.12"
 
 	// posthogHost is the PostHog ingestion endpoint. EU cloud by default; change
 	// to https://us.i.posthog.com for a US project.