feat(icom): a DATA button, native PSK, real watts — and the audio codec

The console gains a DATA mode button (USB-D, what FT8 and friends ride on);
the PSK button now maps to the rigs' native PSK mode (0x12) instead of erroring
as an unknown mode — rigs without one NAK it, exactly as RS-BA1's button does
there. The power meter shows real watts on the IC-7760, whose meter face runs
to 250 W where a 100 W rig's percentage was the watts. The clickable S-meter
gets a pointer cursor so it looks like what it is.

Network audio: rxcodec 0x04 — the experiments on the real 7760 settle the
codec table (0x10 = 16-bit stereo, 0x02 = 8-bit mono, both heard as garble),
and 0x04 is the 16-bit mono the playback path actually plays.

changelog.json

@@ -8,7 +8,9 @@
       "Icom: the IC-7760 joins the model list (CI-V address B2h).",
       "Icom console: the IC-7760 gets its real attenuator steps — 6/12/18 dB.",
       "Icom network audio: the RX stream is decoded correctly — mono is requested and the payload offset was confirmed on a real IC-7760, curing the garbled, clicking audio.",
-      "Icom: switching back from a data mode (USB-D1) to plain USB now sticks — if the rig ignores the data-flag command, it is repeated with the modern one-frame form (0x26). Seen on the IC-7760."
+      "Icom: switching back from a data mode (USB-D1) to plain USB now sticks — if the rig ignores the data-flag command, it is repeated with the modern one-frame form (0x26). Seen on the IC-7760.",
+      "Icom console: a DATA mode button (USB-D, what FT8 wants), the PSK button drives the rigs that have a native PSK mode, and the power meter reads in real watts on the IC-7760’s 250 W scale.",
+      "Icom network audio: the right codec is requested (16-bit mono LPCM), settled by experiment on a real IC-7760."
     ],
     "fr": [
       "Console Elecraft : le S-mètre est calibré sur un vrai K3 — S9 et les +dB correspondent désormais à l’affichage de la radio (il lisait environ deux points S trop bas).",
@@ -16,7 +18,9 @@
       "Icom : l’IC-7760 rejoint la liste des modèles (adresse CI-V B2h).",
       "Console Icom : l’IC-7760 reçoit ses vrais crans d’atténuateur — 6/12/18 dB.",
       "Audio réseau Icom : le flux RX est décodé correctement — le mono est demandé et l’offset du payload a été confirmé sur un vrai IC-7760, ce qui guérit le son inaudible et les clics.",
-      "Icom : revenir d’un mode data (USB-D1) au USB simple tient désormais — si la radio ignore la commande du drapeau data, elle est répétée sous la forme moderne en une trame (0x26). Constaté sur l’IC-7760."
+      "Icom : revenir d’un mode data (USB-D1) au USB simple tient désormais — si la radio ignore la commande du drapeau data, elle est répétée sous la forme moderne en une trame (0x26). Constaté sur l’IC-7760.",
+      "Console Icom : un bouton de mode DATA (USB-D, celui de FT8), le bouton PSK pilote les radios qui ont un vrai mode PSK, et le wattmètre lit en watts réels sur l’échelle 250 W de l’IC-7760.",
+      "Audio réseau Icom : le bon codec est demandé (LPCM mono 16 bits), déterminé par l’expérience sur un vrai IC-7760."
     ]
   },
   {

frontend/src/components/IcomPanel.tsx

@@ -79,7 +79,7 @@ function bandsFor(model?: string): Band[] {
 
 // Mode buttons for the console (like RS-BA1's row). SetCATMode picks USB/LSB for
 // SSB by frequency and the rig's data variant for digital modes.
-const MODES = ['SSB', 'CW', 'RTTY', 'PSK', 'AM', 'FM'];
+const MODES = ['SSB', 'CW', 'RTTY', 'PSK', 'AM', 'FM', 'DATA'];
 
 // Attenuator steps are MODEL-dependent even though the CI-V command (0x11) is the
 // same: the value byte is the dB. The IC-7610 (and 7700/7800/7851) have a 6/12/18
@@ -132,6 +132,10 @@ function fmtVFO(hz?: number): string {
 function modeMatches(btn: string, cur?: string): boolean {
   if (!cur) return false;
   if (btn === 'SSB') return cur === 'SSB' || cur === 'USB' || cur === 'LSB';
+  // The backend surfaces USB-D as the operator's digital default (FT8…), or as
+  // plain DATA — either way it is the DATA button that should light.
+  if (btn === 'DATA') return ['DATA', 'FT8', 'FT4', 'JS8', 'JT65', 'JT9', 'MFSK', 'OLIVIA'].includes(cur);
+  if (btn === 'PSK') return cur === 'PSK' || cur === 'PSK31';
   return btn === cur;
 }
 
@@ -246,7 +250,7 @@ function Meter({ label, value, accent, scale, onClick, title }: { label: string;
     </>
   );
   if (onClick) {
-    return <button type="button" onClick={onClick} title={title} className="flex items-center gap-2 w-full rounded hover:bg-muted/50 -mx-1 px-1 py-0.5">{body}</button>;
+    return <button type="button" onClick={onClick} title={title} className="flex items-center gap-2 w-full rounded cursor-pointer hover:bg-muted/50 -mx-1 px-1 py-0.5">{body}</button>;
   }
   return <div className="flex items-center gap-2">{body}</div>;
 }
@@ -718,7 +722,7 @@ export function IcomPanel({ onReportRST, isNetwork = false }: { onReportRST?: (r
           </div>
         </div>
         {/* Mode selector row (RS-BA1's SSB/CW/RTTY/PSK/AM/FM). */}
-        <div className="grid grid-cols-6 border-t border-border/60 divide-x divide-border/60">
+        <div className="grid grid-cols-7 border-t border-border/60 divide-x divide-border/60">
           {MODES.map((m) => {
             const on = modeMatches(m, curMode);
             return (
@@ -739,7 +743,11 @@ export function IcomPanel({ onReportRST, isNetwork = false }: { onReportRST?: (r
             title={onReportRST ? t('rst.clickToFill') : undefined}
             onClick={onReportRST ? () => onReportRST(sMeterRST(sp.s, sp.over, st.mode)) : undefined} />
         ); })()}
-        <Meter label="Po" value={st.power_meter} accent="#ef4444" scale={`${st.power_meter} W`} />
+        {/* The meter reads 0-100% of the rig's own scale. On a 100 W rig the
+            percentage IS the watts; the IC-7760's meter runs to 250 W (the rig
+            makes 200), so its percentage is worth 2.5 W a point — same face as
+            the radio's. */}
+        <Meter label="Po" value={st.power_meter} accent="#ef4444" scale={`${Math.round(st.power_meter * (((st.model ?? '').includes('7760')) ? 2.5 : 1))} W`} />
         <Meter label="SWR" value={st.swr_meter} accent="#f59e0b" scale={st.swr_meter > 0 ? `${(1 + st.swr_meter / 33.3).toFixed(1)}` : '1.0'} />
       </div>
 

internal/cat/civ/civ.go

@@ -131,6 +131,8 @@ const (
 	ModeFM    = 0x05
 	ModeCWR   = 0x07
 	ModeRTTYR = 0x08
+	ModePSK   = 0x12 // native PSK (IC-7610/7760/7851 class; older rigs NAK it)
+	ModePSKR  = 0x13
 )
 
 // Frame builds a complete CI-V frame (preamble … end) for payload, which is the
@@ -306,6 +308,8 @@ func ModeToADIF(m byte, data bool) string {
 		return "CW"
 	case ModeRTTY, ModeRTTYR:
 		return "RTTY"
+	case ModePSK, ModePSKR:
+		return "PSK31"
 	case ModeAM:
 		return "AM"
 	case ModeFM:

internal/cat/icomnet.go

@@ -849,12 +849,12 @@ func icnConnInfo(seq, innerSeq, tokReq uint16, sentid, rcvdid, token uint32, use
 	copy(b[0x60:0x70], icnPasscode(user))
 	b[0x70] = rxEnable // rxenable: 1 opens the 50003 RX audio stream, 0 = CI-V only
 	b[0x71] = 0x00     // txenable (Phase 5)
-	// rxcodec 0x02 = LPCM, ONE channel, 16-bit. 0x10 (two channels) was asked
+	// rxcodec 0x04 = LPCM, ONE channel, 16-BIT — settled by experiment on a
-	// for at first, and a real IC-7760 duly sent interleaved stereo — which the
+	// real IC-7760, one wrong guess at a time: 0x10 produced 1280-byte payloads
-	// 16 kHz mono playback path rendered as garble at double speed. Mono is what
+	// of interleaved 16-bit stereo, 0x02 produced 320-byte payloads of 8-bit
-	// the monitor plays and half the bandwidth; the second channel of an RX
+	// mono (samples hugging 0x80). 0x04 sits between them in the codec table
-	// stream carries nothing a logger wants.
+	// (as in wfview): 16-bit mono, the format the 16 kHz playback path plays.
-	b[0x72] = 0x02 // rxcodec
+	b[0x72] = 0x04 // rxcodec
 	b[0x73] = 0x04 // txcodec
 	icnBE.PutUint32(b[0x74:], 16000)
 	icnBE.PutUint32(b[0x78:], 8000)

internal/cat/icomserial.go

@@ -1494,6 +1494,12 @@ func (b *IcomSerial) modeCode(mode string) (code byte, data bool, err error) {
 		return civ.ModeFM, false, nil
 	case "RTTY", "FSK":
 		return civ.ModeRTTY, false, nil
+	case "PSK":
+		// The console button, not the ADIF mode: the rigs that HAVE a native PSK
+		// mode (7610/7760/7851 class) get it; a 7300 NAKs 0x12 and the button
+		// stays dead there, exactly as RS-BA1's does. Soundcard PSK31 stays on
+		// USB-D below, where every rig can do it.
+		return civ.ModePSK, false, nil
 	case "FT8", "FT4", "PSK31", "MFSK", "JS8", "JT65", "JT9", "OLIVIA", "DATA", "DIGITALVOICE":
 		// Digital data modes ride on USB with the data flag set (FT8 etc.).
 		return civ.ModeUSB, true, nil