feat: icom Scope in Icom Tab

app.go

@@ -7540,6 +7540,66 @@ func (a *App) IcomSetFilter(n int) error {
 	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetIcomFilter(n) })
 }
 
+func (a *App) IcomSetRFPower(p int) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetRFPower(p) })
+}
+
+func (a *App) IcomSetMicGain(p int) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetMicGain(p) })
+}
+
+func (a *App) IcomSetSplit(on bool) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetIcomSplit(on) })
+}
+
+func (a *App) IcomTune() error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.TuneATU() })
+}
+
+// IcomSetScope enables/disables the spectrum-scope waveform stream.
+func (a *App) IcomSetScope(on bool) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetScope(on) })
+}
+
+// IcomScopeData returns the latest reassembled spectrum sweep for the panadapter.
+func (a *App) IcomScopeData() cat.ScopeSweep {
+	if a.cat == nil {
+		return cat.ScopeSweep{}
+	}
+	sw, _ := a.cat.IcomScope()
+	return sw
+}
+
+// IcomSetScopeMode selects fixed-span (true) or center-on-VFO (false) scope mode.
+func (a *App) IcomSetScopeMode(fixed bool) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.IcomDo(func(ic cat.IcomController) error { return ic.SetScopeMode(fixed) })
+}
+
+func (a *App) IcomSetPTT(on bool) error {
+	if a.cat == nil {
+		return fmt.Errorf("cat not initialized")
+	}
+	return a.cat.SetPTT(on)
+}
+
 func (a *App) FlexSetPower(p int) error {
 	if a.cat == nil {
 		return fmt.Errorf("cat not initialized")

frontend/src/components/IcomPanel.tsx

@@ -1,31 +1,60 @@
 import { useEffect, useRef, useState } from 'react';
-import { Radio, AudioLines, RefreshCw } from 'lucide-react';
+import { Radio, AudioLines, RefreshCw, Mic, Zap, Activity } from 'lucide-react';
 import {
   GetIcomState, IcomRefresh,
   IcomSetAFGain, IcomSetRFGain, IcomSetNB, IcomSetNBLevel, IcomSetNR, IcomSetNRLevel,
   IcomSetANF, IcomSetAGC, IcomSetPreamp, IcomSetAtt, IcomSetFilter,
+  IcomSetRFPower, IcomSetMicGain, IcomSetSplit, IcomTune, IcomSetPTT,
+  IcomSetScope, IcomScopeData, IcomSetScopeMode, GetCATState, SetCATFrequency,
 } from '../../wailsjs/go/main/App';
 import { cn } from '@/lib/utils';
 
 type IcomState = {
   available: boolean; model?: string; mode?: string;
+  transmitting: boolean; split: boolean;
+  s_meter: number; power_meter: number; swr_meter: number;
+  rf_power: number; mic_gain: number;
   af_gain: number; rf_gain: number;
   nb: boolean; nb_level: number; nr: boolean; nr_level: number; anf: boolean;
   agc?: string; preamp: number; att: number; filter: number;
 };
 
 const ZERO: IcomState = {
-  available: false, af_gain: 0, rf_gain: 0,
+  available: false, transmitting: false, split: false,
+  s_meter: 0, power_meter: 0, swr_meter: 0, rf_power: 0, mic_gain: 0,
+  af_gain: 0, rf_gain: 0,
   nb: false, nb_level: 0, nr: false, nr_level: 0, anf: false,
   preamp: 0, att: 0, filter: 1,
 };
 
-function Slider({ value, onChange, disabled, accent = '#2563eb' }: {
+function Slider({ value, onChange, disabled, accent = '#2563eb', step = 1 }: {
-  value: number; onChange: (v: number) => void; disabled?: boolean; accent?: string;
+  value: number; onChange: (v: number) => void; disabled?: boolean; accent?: string; step?: number;
 }) {
   const v = Math.max(0, Math.min(100, value));
+  const ref = useRef<HTMLInputElement>(null);
+  // Mouse-wheel adjusts the slider. React's onWheel is passive (preventDefault
+  // is ignored), so attach a non-passive native listener; read live values via
+  // refs to avoid stale closures.
+  const valRef = useRef(value); valRef.current = value;
+  const cbRef = useRef(onChange); cbRef.current = onChange;
+  const disRef = useRef(disabled); disRef.current = disabled;
+  const stepRef = useRef(step); stepRef.current = step;
+  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(0, Math.min(100, 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={0} max={100} 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',
@@ -95,13 +124,200 @@ function Row({ label, children }: { label: string; children: React.ReactNode })
   );
 }
 
-// IcomPanel — receive-DSP control surface for an Icom on the CI-V backend.
+// Meter — a thin horizontal bar for a live 0-100 reading (S / Po / SWR).
-// Unlike the Flex (which pushes state), the Icom is polled: the cache reflects
+function Meter({ label, value, accent, scale }: { label: string; value: number; accent: string; scale?: string }) {
-// the last refresh plus optimistic updates. Front-panel knob changes show after
+  const v = Math.max(0, Math.min(100, value));
-// the next ↻ Refresh.
+  return (
+    <div className="flex items-center gap-2">
+      <span className="w-9 shrink-0 text-[11px] font-bold uppercase tracking-wider text-muted-foreground">{label}</span>
+      <div className="flex-1 h-2.5 rounded-full bg-muted/60 overflow-hidden">
+        <div className="h-full rounded-full transition-[width] duration-150" style={{ width: `${v}%`, background: accent }} />
+      </div>
+      <span className="w-10 text-right text-[11px] font-mono tabular-nums text-muted-foreground">{scale ?? v}</span>
+    </div>
+  );
+}
+
+// S-meter raw 0-100 → S-unit label (S9 ≈ 47% on the CI-V 0-255 scale; above = +dB).
+function sUnit(v: number): string {
+  if (v >= 47) {
+    const over = Math.round((v - 47) / 8.8) * 10;
+    return over > 0 ? `S9+${over}` : 'S9';
+  }
+  return `S${Math.max(0, Math.min(9, Math.round(v / 5.2)))}`;
+}
+
+// ScopePanadapter — enables the rig's spectrum-scope stream and draws the
+// reassembled sweep on a canvas. The amplitude array is raw rig scale (~0-160);
+// we normalise to the tallest recent peak so the trace fills the height.
+function ScopePanadapter() {
+  const [on, setOn] = useState(false);
+  const [fixed, setFixed] = useState(true);
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const peakRef = useRef(160); // running amplitude ceiling for auto-scale
+  const spanRef = useRef({ low: 0, high: 0 }); // latest sweep edges, for click-to-tune
+  const vfoRef = useRef(0);    // latest VFO frequency, for wheel-tune
+
+  const toggle = () => {
+    const next = !on;
+    setOn(next);
+    IcomSetScope(next).catch(() => {});
+  };
+  const setMode = (nextFixed: boolean) => {
+    setFixed(nextFixed);
+    IcomSetScopeMode(nextFixed).catch(() => {});
+  };
+  // Stop the stream when the panel unmounts.
+  useEffect(() => () => { IcomSetScope(false).catch(() => {}); }, []);
+
+  useEffect(() => {
+    if (!on) return;
+    let raf = 0, lastSeq = -1, alive = true;
+    const tick = async () => {
+      if (!alive) return;
+      try {
+        const sw = await IcomScopeData();
+        if (sw && sw.seq !== lastSeq && sw.amp && sw.amp.length) {
+          lastSeq = sw.seq;
+          setFixed(sw.fixed);
+          spanRef.current = { low: sw.low_hz, high: sw.high_hz };
+          let vfo = 0;
+          try {
+            const cs = await GetCATState();
+            vfo = cs?.split && cs.freq_rx_hz ? cs.freq_rx_hz : (cs?.freq_hz || 0);
+          } catch {}
+          if (vfo > 0) vfoRef.current = vfo;
+          draw(sw.amp, sw.low_hz, sw.high_hz, vfo);
+        }
+      } catch {}
+      if (alive) raf = window.setTimeout(() => { raf = requestAnimationFrame(tick); }, 40) as unknown as number;
+    };
+    raf = requestAnimationFrame(tick);
+    return () => { alive = false; cancelAnimationFrame(raf); window.clearTimeout(raf); };
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [on]);
+
+  // Double-click tunes the rig to the clicked frequency.
+  const onDblClick = (e: React.MouseEvent<HTMLCanvasElement>) => {
+    const cv = canvasRef.current;
+    const { low, high } = spanRef.current;
+    if (!cv || !(low > 0 && high > low)) return;
+    const rect = cv.getBoundingClientRect();
+    const frac = Math.max(0, Math.min(1, (e.clientX - rect.left) / rect.width));
+    const hz = Math.round((low + frac * (high - low)) / 100) * 100; // nearest 100 Hz
+    SetCATFrequency(hz).catch(() => {});
+  };
+
+  // Mouse-wheel over the scope QSYs ±100 Hz. Non-passive listener so we can
+  // preventDefault (else the page scrolls); optimistic vfoRef so quick spins
+  // accumulate before the poll reconciles.
+  useEffect(() => {
+    const el = canvasRef.current;
+    if (!el || !on) return;
+    const onWheel = (e: WheelEvent) => {
+      if (!vfoRef.current) return;
+      e.preventDefault();
+      const next = vfoRef.current + (e.deltaY < 0 ? 100 : -100);
+      vfoRef.current = next;
+      SetCATFrequency(next).catch(() => {});
+    };
+    el.addEventListener('wheel', onWheel, { passive: false });
+    return () => el.removeEventListener('wheel', onWheel);
+  }, [on]);
+
+  const draw = (amp: number[], lowHz: number, highHz: number, vfoHz: number) => {
+    const cv = canvasRef.current;
+    if (!cv) return;
+    const dpr = window.devicePixelRatio || 1;
+    const w = cv.clientWidth, h = cv.clientHeight;
+    if (cv.width !== w * dpr || cv.height !== h * dpr) { cv.width = w * dpr; cv.height = h * dpr; }
+    const ctx = cv.getContext('2d');
+    if (!ctx) return;
+    ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
+    ctx.clearRect(0, 0, w, h);
+
+    // Auto-scale: track the peak, decaying slowly so the floor doesn't jump.
+    const peak = Math.max(...amp);
+    peakRef.current = Math.max(peak, peakRef.current * 0.95, 40);
+    const scale = peakRef.current;
+
+    // Grid.
+    ctx.strokeStyle = 'rgba(120,120,120,0.15)';
+    ctx.lineWidth = 1;
+    for (let i = 1; i < 4; i++) { const y = (h * i) / 4; ctx.beginPath(); ctx.moveTo(0, y); ctx.lineTo(w, y); ctx.stroke(); }
+    for (let i = 1; i < 8; i++) { const x = (w * i) / 8; ctx.beginPath(); ctx.moveTo(x, 0); ctx.lineTo(x, h); ctx.stroke(); }
+
+    // Spectrum trace, filled under the line.
+    const n = amp.length;
+    ctx.beginPath();
+    ctx.moveTo(0, h);
+    for (let i = 0; i < n; i++) {
+      const x = (i / (n - 1)) * w;
+      const y = h - Math.min(1, amp[i] / scale) * h;
+      ctx.lineTo(x, y);
+    }
+    ctx.lineTo(w, h);
+    ctx.closePath();
+    const grad = ctx.createLinearGradient(0, 0, 0, h);
+    grad.addColorStop(0, 'rgba(56,189,248,0.55)');
+    grad.addColorStop(1, 'rgba(56,189,248,0.05)');
+    ctx.fillStyle = grad;
+    ctx.fill();
+    ctx.strokeStyle = '#38bdf8';
+    ctx.lineWidth = 1.25;
+    ctx.stroke();
+
+    // VFO marker: a vertical line at the current frequency within the span.
+    if (vfoHz > 0 && lowHz > 0 && highHz > lowHz && vfoHz >= lowHz && vfoHz <= highHz) {
+      const x = ((vfoHz - lowHz) / (highHz - lowHz)) * w;
+      ctx.strokeStyle = 'rgba(239,68,68,0.95)';
+      ctx.lineWidth = 1.5;
+      ctx.beginPath(); ctx.moveTo(x, 0); ctx.lineTo(x, h); ctx.stroke();
+    }
+
+    // Frequency scale (edges + centre), only when the rig reported the span.
+    if (lowHz > 0 && highHz > lowHz) {
+      const mhz = (hz: number) => (hz / 1e6).toFixed(3);
+      ctx.fillStyle = 'rgba(226,232,240,0.75)';
+      ctx.font = '10px ui-monospace, monospace';
+      ctx.textBaseline = 'bottom';
+      ctx.textAlign = 'left';   ctx.fillText(mhz(lowHz), 3, h - 2);
+      ctx.textAlign = 'center'; ctx.fillText(mhz((lowHz + highHz) / 2), w / 2, h - 2);
+      ctx.textAlign = 'right';  ctx.fillText(mhz(highHz), w - 3, h - 2);
+    }
+  };
+
+  return (
+    <Card icon={Activity} title="Spectrum" accent="#38bdf8">
+      <div className="flex items-center justify-between gap-2">
+        <span className="text-[11px] text-muted-foreground truncate">
+          {on ? (fixed ? 'Fixed — double-click / wheel to tune' : 'Center — follows VFO') : 'Scope off'}
+        </span>
+        <div className="flex items-center gap-2 shrink-0">
+          {on && (
+            <Segmented value={fixed ? 'FIX' : 'CTR'} options={[{ v: 'CTR', l: 'CTR' }, { v: 'FIX', l: 'FIX' }]}
+              onChange={(v) => setMode(v === 'FIX')} />
+          )}
+          <Chip label={on ? 'ON' : 'OFF'} on={on} onClick={toggle} />
+        </div>
+      </div>
+      <div className="rounded-lg border border-border bg-black/70 overflow-hidden">
+        <canvas ref={canvasRef} onDoubleClick={onDblClick}
+          className="w-full block cursor-crosshair" style={{ height: 150 }} />
+      </div>
+    </Card>
+  );
+}
+
+// IcomPanel — full control surface (RX DSP + TX) for an Icom on the CI-V backend.
+// Unlike the Flex (which pushes state), the Icom is polled: meters/TX state are
+// read every cache cycle; DSP set-controls are optimistic and reconcile on the
+// next poll. Front-panel knob changes for DSP show after ↻ Refresh.
 export function IcomPanel() {
   const [st, setSt] = useState<IcomState>(ZERO);
   const [busy, setBusy] = useState(false);
+  const [tuning, setTuning] = useState(false);
+  const txRef = useRef(false);
 
   const load = () => GetIcomState().then((s) => setSt((s ?? ZERO) as IcomState)).catch(() => {});
   const refresh = async () => {
@@ -113,7 +329,7 @@ export function IcomPanel() {
 
   useEffect(() => {
     refresh();
-    const id = window.setInterval(load, 1500); // cheap cache poll (mode + optimistic state)
+    const id = window.setInterval(load, 500); // fast poll so meters/TX feel live
     return () => window.clearInterval(id);
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
@@ -124,6 +340,18 @@ export function IcomPanel() {
     fn().catch(() => {});
   };
 
+  const toggleMox = () => {
+    const next = !txRef.current;
+    txRef.current = next;
+    set({ transmitting: next }, () => IcomSetPTT(next));
+  };
+
+  const tune = async () => {
+    setTuning(true);
+    try { await IcomTune(); } catch {}
+    window.setTimeout(() => setTuning(false), 4000);
+  };
+
   if (!st.available) {
     return (
       <div className="h-full flex items-center justify-center text-sm text-muted-foreground p-6 text-center">
@@ -132,16 +360,70 @@ export function IcomPanel() {
     );
   }
 
+  const tx = st.transmitting;
+
   return (
-    <div className="h-full overflow-y-auto p-3 space-y-3">
+    <div className="h-full min-h-0 overflow-auto bg-background">
-      <div className="flex items-center justify-between">
+      <div className="max-w-5xl mx-auto p-3 space-y-3">
-        <div className="text-sm font-bold">{st.model || 'Icom'}{st.mode ? <span className="ml-2 text-xs font-mono text-muted-foreground">{st.mode}</span> : null}</div>
+      {/* Header strip: model + mode + live RX/TX indicator + split badge. */}
+      <div className="flex items-center justify-between rounded-xl border border-border bg-card px-3 py-2 shadow-sm">
+        <div className="flex items-center gap-2">
+          <span className={cn('inline-flex items-center gap-1.5 rounded-md px-2 py-1 text-[11px] font-bold uppercase tracking-wider',
+            tx ? 'bg-red-600 text-white' : 'bg-emerald-600 text-white')}>
+            <span className={cn('size-2 rounded-full', tx ? 'bg-white animate-pulse' : 'bg-white/90')} />
+            {tx ? 'TX' : 'RX'}
+          </span>
+          <span className="text-sm font-bold">{st.model || 'Icom'}</span>
+          {st.mode ? <span className="text-xs font-mono text-muted-foreground">{st.mode}</span> : null}
+          {st.split ? <span className="rounded-md bg-amber-500/20 px-1.5 py-0.5 text-[10px] font-bold uppercase tracking-wider text-amber-600">Split</span> : null}
+        </div>
         <button type="button" onClick={refresh} disabled={busy}
           className="inline-flex items-center gap-1.5 rounded-md border border-border bg-card px-2 py-1 text-xs hover:bg-muted disabled:opacity-40">
           <RefreshCw className={cn('size-3.5', busy && 'animate-spin')} /> Refresh
         </button>
       </div>
 
+      {/* Spectrum panadapter (full width). */}
+      <ScopePanadapter />
+
+      <div className="grid grid-cols-1 lg:grid-cols-2 gap-3">
+      {/* Live meters. */}
+      <Card icon={Zap} title="Meters" accent="#f59e0b">
+        {tx ? (
+          <>
+            <Meter label="Po" value={st.power_meter} accent="#ef4444" scale={`${st.power_meter}%`} />
+            <Meter label="SWR" value={st.swr_meter} accent="#f59e0b" scale={st.swr_meter > 0 ? `${(1 + st.swr_meter / 33.3).toFixed(1)}` : '1.0'} />
+          </>
+        ) : (
+          <Meter label="S" value={st.s_meter} accent="#22c55e" scale={sUnit(st.s_meter)} />
+        )}
+      </Card>
+
+      {/* Transmit controls. */}
+      <Card icon={Mic} title="Transmit" accent="#ef4444">
+        <Row label="Power">
+          <Slider value={st.rf_power} accent="#ef4444" onChange={(v) => set({ rf_power: v }, () => IcomSetRFPower(v))} />
+          <span className="w-8 text-right text-xs font-mono tabular-nums text-muted-foreground">{st.rf_power}</span>
+        </Row>
+        <Row label="Mic">
+          <Slider value={st.mic_gain} accent="#ef4444" onChange={(v) => set({ mic_gain: v }, () => IcomSetMicGain(v))} />
+          <span className="w-8 text-right text-xs font-mono tabular-nums text-muted-foreground">{st.mic_gain}</span>
+        </Row>
+        <div className="flex items-center gap-2 pt-1">
+          <button type="button" onClick={toggleMox}
+            className={cn('flex-1 px-3 py-1.5 rounded-md text-xs font-bold border transition-colors',
+              tx ? 'bg-red-600 border-red-600 text-white' : 'bg-card text-foreground border-border hover:bg-muted')}>
+            {tx ? 'TX ON' : 'MOX'}
+          </button>
+          <Chip label="SPLIT" on={st.split} onClick={() => set({ split: !st.split }, () => IcomSetSplit(!st.split))} />
+          <button type="button" onClick={tune} disabled={tuning}
+            className={cn('w-14 shrink-0 px-2 py-1.5 rounded-md text-[11px] font-bold border transition-colors',
+              tuning ? 'bg-amber-500 border-amber-500 text-white animate-pulse' : 'bg-card text-foreground border-border hover:bg-muted')}>
+            TUNE
+          </button>
+        </div>
+      </Card>
+
       <Card icon={Radio} title="Receive" accent="#2563eb">
         <Row label="AF">
           <Slider value={st.af_gain} onChange={(v) => set({ af_gain: v }, () => IcomSetAFGain(v))} />
@@ -182,5 +464,7 @@ export function IcomPanel() {
         </div>
       </Card>
       </div>
+      </div>
+    </div>
   );
 }

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

@@ -333,6 +333,8 @@ export function HasBuiltinReferences(arg1:string):Promise<boolean>;
 
 export function IcomRefresh():Promise<void>;
 
+export function IcomScopeData():Promise<cat.ScopeSweep>;
+
 export function IcomSetAFGain(arg1:number):Promise<void>;
 
 export function IcomSetAGC(arg1:string):Promise<void>;
@@ -343,6 +345,8 @@ export function IcomSetAtt(arg1:number):Promise<void>;
 
 export function IcomSetFilter(arg1:number):Promise<void>;
 
+export function IcomSetMicGain(arg1:number):Promise<void>;
+
 export function IcomSetNB(arg1:boolean):Promise<void>;
 
 export function IcomSetNBLevel(arg1:number):Promise<void>;
@@ -351,10 +355,22 @@ export function IcomSetNR(arg1:boolean):Promise<void>;
 
 export function IcomSetNRLevel(arg1:number):Promise<void>;
 
+export function IcomSetPTT(arg1:boolean):Promise<void>;
+
 export function IcomSetPreamp(arg1:number):Promise<void>;
 
 export function IcomSetRFGain(arg1:number):Promise<void>;
 
+export function IcomSetRFPower(arg1:number):Promise<void>;
+
+export function IcomSetScope(arg1:boolean):Promise<void>;
+
+export function IcomSetScopeMode(arg1:boolean):Promise<void>;
+
+export function IcomSetSplit(arg1:boolean):Promise<void>;
+
+export function IcomTune():Promise<void>;
+
 export function ImportADIF(arg1:string,arg2:string,arg3:boolean,arg4:boolean):Promise<adif.ImportResult>;
 
 export function ImportAwardReferencesText(arg1:string,arg2:string):Promise<number>;

frontend/wailsjs/go/main/App.js

@@ -630,6 +630,10 @@ export function IcomRefresh() {
   return window['go']['main']['App']['IcomRefresh']();
 }
 
+export function IcomScopeData() {
+  return window['go']['main']['App']['IcomScopeData']();
+}
+
 export function IcomSetAFGain(arg1) {
   return window['go']['main']['App']['IcomSetAFGain'](arg1);
 }
@@ -650,6 +654,10 @@ export function IcomSetFilter(arg1) {
   return window['go']['main']['App']['IcomSetFilter'](arg1);
 }
 
+export function IcomSetMicGain(arg1) {
+  return window['go']['main']['App']['IcomSetMicGain'](arg1);
+}
+
 export function IcomSetNB(arg1) {
   return window['go']['main']['App']['IcomSetNB'](arg1);
 }
@@ -666,6 +674,10 @@ export function IcomSetNRLevel(arg1) {
   return window['go']['main']['App']['IcomSetNRLevel'](arg1);
 }
 
+export function IcomSetPTT(arg1) {
+  return window['go']['main']['App']['IcomSetPTT'](arg1);
+}
+
 export function IcomSetPreamp(arg1) {
   return window['go']['main']['App']['IcomSetPreamp'](arg1);
 }
@@ -674,6 +686,26 @@ export function IcomSetRFGain(arg1) {
   return window['go']['main']['App']['IcomSetRFGain'](arg1);
 }
 
+export function IcomSetRFPower(arg1) {
+  return window['go']['main']['App']['IcomSetRFPower'](arg1);
+}
+
+export function IcomSetScope(arg1) {
+  return window['go']['main']['App']['IcomSetScope'](arg1);
+}
+
+export function IcomSetScopeMode(arg1) {
+  return window['go']['main']['App']['IcomSetScopeMode'](arg1);
+}
+
+export function IcomSetSplit(arg1) {
+  return window['go']['main']['App']['IcomSetSplit'](arg1);
+}
+
+export function IcomTune() {
+  return window['go']['main']['App']['IcomTune']();
+}
+
 export function ImportADIF(arg1, arg2, arg3, arg4) {
   return window['go']['main']['App']['ImportADIF'](arg1, arg2, arg3, arg4);
 }

frontend/wailsjs/go/models.ts

@@ -671,6 +671,13 @@ export namespace cat {
 	    available: boolean;
 	    model?: string;
 	    mode?: string;
+	    transmitting: boolean;
+	    split: boolean;
+	    s_meter: number;
+	    power_meter: number;
+	    swr_meter: number;
+	    rf_power: number;
+	    mic_gain: number;
 	    af_gain: number;
 	    rf_gain: number;
 	    nb: boolean;
@@ -692,6 +699,13 @@ export namespace cat {
 	        this.available = source["available"];
 	        this.model = source["model"];
 	        this.mode = source["mode"];
+	        this.transmitting = source["transmitting"];
+	        this.split = source["split"];
+	        this.s_meter = source["s_meter"];
+	        this.power_meter = source["power_meter"];
+	        this.swr_meter = source["swr_meter"];
+	        this.rf_power = source["rf_power"];
+	        this.mic_gain = source["mic_gain"];
 	        this.af_gain = source["af_gain"];
 	        this.rf_gain = source["rf_gain"];
 	        this.nb = source["nb"];
@@ -760,6 +774,26 @@ export namespace cat {
 		    return a;
 		}
 	}
+	export class ScopeSweep {
+	    amp: number[];
+	    seq: number;
+	    low_hz: number;
+	    high_hz: number;
+	    fixed: boolean;
+	
+	    static createFrom(source: any = {}) {
+	        return new ScopeSweep(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.amp = source["amp"];
+	        this.seq = source["seq"];
+	        this.low_hz = source["low_hz"];
+	        this.high_hz = source["high_hz"];
+	        this.fixed = source["fixed"];
+	    }
+	}
 
 }
 

internal/cat/cat.go

@@ -376,6 +376,15 @@ type IcomTXState struct {
 	Available bool   `json:"available"`
 	Model     string `json:"model,omitempty"`
 	Mode      string `json:"mode,omitempty"`
+	// Transmit + live status (polled).
+	Transmitting bool `json:"transmitting"`
+	Split        bool `json:"split"`
+	SMeter       int  `json:"s_meter"` // 0-100 (raw 0-255; S9≈120)
+	PowerMeter   int  `json:"power_meter"` // 0-100 (TX Po)
+	SWRMeter     int  `json:"swr_meter"`   // 0-100 (TX SWR)
+	// Set controls.
+	RFPower int `json:"rf_power"` // 0-100 (TX output)
+	MicGain int `json:"mic_gain"` // 0-100
 	AFGain  int `json:"af_gain"`
 	RFGain  int `json:"rf_gain"`
 	NB        bool   `json:"nb"`
@@ -406,6 +415,25 @@ type IcomController interface {
 	SetPreamp(int) error
 	SetAtt(int) error
 	SetIcomFilter(int) error
+	SetRFPower(int) error
+	SetMicGain(int) error
+	SetIcomSplit(bool) error
+	TuneATU() error
+	SetScope(bool) error     // enable/disable the spectrum-scope waveform stream
+	SetScopeMode(bool) error // true = fixed span, false = center-on-VFO
+	ScopeData() ScopeSweep   // latest assembled sweep (empty until enabled)
+}
+
+// ScopeSweep is one complete spectrum-scope sweep reassembled from the Icom's
+// divided 0x27 waveform frames. Amp holds one amplitude byte per pixel (raw rig
+// scale, typically 0-160). Seq increments on every completed sweep so the UI can
+// tell fresh data from a repeated poll.
+type ScopeSweep struct {
+	Amp    []int `json:"amp"` // []int (not []byte) so it marshals as a JSON number array
+	Seq    int   `json:"seq"`
+	LowHz  int64 `json:"low_hz"`  // left edge frequency (0 when unknown)
+	HighHz int64 `json:"high_hz"` // right edge frequency (0 when unknown)
+	Fixed  bool  `json:"fixed"`   // true = fixed-span mode, false = center-on-VFO
 }
 
 // IcomState returns the current Icom DSP state, or (zero, false) when the active
@@ -420,6 +448,19 @@ func (m *Manager) IcomState() (IcomTXState, bool) {
 	return IcomTXState{}, false
 }
 
+// IcomScope returns the latest spectrum-scope sweep, or (zero, false) when the
+// active backend isn't an Icom. The sweep is mutex-guarded in the backend, so
+// this reads it directly (no CAT-goroutine round trip) — cheap enough to poll.
+func (m *Manager) IcomScope() (ScopeSweep, bool) {
+	m.mu.RLock()
+	b := m.backend
+	m.mu.RUnlock()
+	if ic, ok := b.(IcomController); ok {
+		return ic.ScopeData(), true
+	}
+	return ScopeSweep{}, false
+}
+
 // IcomDo dispatches an Icom control onto the CAT goroutine. Errors if the
 // active backend isn't an Icom.
 func (m *Manager) IcomDo(fn func(IcomController) error) error {
@@ -490,6 +531,21 @@ func (m *Manager) run(b Backend, stop, done chan struct{}, cmds chan func(), pol
 			fn()
 			m.applyCommandDelay()
 		case <-ticker.C:
+			// Drain any queued commands before polling. A serial backend reads
+			// many registers per ReadState, so without this the shared select's
+			// fairness lets polls repeatedly win and a user's Set* can lag by
+			// seconds. Servicing commands first bounds that latency to a single
+			// ReadState.
+			for {
+				select {
+				case fn := <-cmds:
+					fn()
+					m.applyCommandDelay()
+					continue
+				default:
+				}
+				break
+			}
 			if !connected {
 				tryConnect()
 				continue

internal/cat/civ/civ.go

@@ -40,7 +40,10 @@ const (
 
 	CmdAtt   = 0x11 // attenuator (1 BCD byte of dB; 0x00 = off)
 	CmdLevel = 0x14 // analogue levels (sub + 2 BCD bytes, 0000-0255)
+	CmdMeter = 0x15 // meters (sub + 2 BCD bytes, 0000-0255): S-meter/Po/SWR
 	CmdSwitch = 0x16 // on/off + multi-state DSP settings (sub + 1 byte)
+	CmdATU    = 0x1C // sub 0x01 = antenna tuner (0x00 off, 0x01 through, 0x02 tune)
+	CmdScope  = 0x27 // spectrum-scope waveform stream (sub 0x00 = data, 0x11 = on/off)
 
 	SubDataMode      = 0x06
 	SubPTT           = 0x00
@@ -52,6 +55,24 @@ const (
 	SubLevelRF      = 0x02 // RF gain
 	SubLevelNR      = 0x06 // noise-reduction depth
 	SubLevelNB      = 0x12 // noise-blanker depth
+	SubLevelRFPower = 0x0A // TX RF output power
+	SubLevelMic     = 0x0B // mic gain
+
+	// CmdMeter sub-commands.
+	SubMeterS   = 0x02 // S-meter (RX)
+	SubMeterPo  = 0x11 // power output (TX)
+	SubMeterSWR = 0x12 // SWR (TX)
+
+	// CmdATU / CmdPTT sub-commands.
+	SubATU = 0x01 // antenna tuner (data 0x02 = start tune)
+
+	// CmdScope sub-commands.
+	SubScopeData  = 0x00 // waveform data frame (divided across several frames)
+	SubScopeOnOff = 0x10 // turn the scope display itself on/off (00/01)
+	SubScopeOn    = 0x11 // enable/disable waveform data output over CI-V (00/01)
+	SubScopeMode  = 0x14 // center/fixed mode (0=center, 1=fixed) — VERIFY on rig
+	SubScopeSpan  = 0x15 // span in center mode — VERIFY on rig
+	SubScopeEdge  = 0x16 // fixed-mode edge frequencies — VERIFY on rig
 
 	// CmdSwitch sub-commands.
 	SubSwPreamp = 0x02 // 0=off, 1=P.AMP1, 2=P.AMP2

internal/cat/icomserial.go

@@ -6,6 +6,7 @@ import (
 	"sync"
 	"time"
 
+	"hamlog/internal/applog"
 	"hamlog/internal/cat/civ"
 
 	"go.bug.st/serial"
@@ -23,11 +24,36 @@ type IcomSerial struct {
 	digital  string // mode to command for DATA (FT8/RTTY/…)
 
 	port  serial.Port
-	rx    []byte // accumulated bytes awaiting a complete frame
 	model string
 
+	// I/O routing. A single reader goroutine owns port.Read and dispatches every
+	// decoded rig frame: control replies go to respCh (drained by recv), while
+	// spectrum-scope frames (0x27) go to specCh for the panadapter. This decouples
+	// the continuous scope stream from the request/response control path — without
+	// it, scope frames would flood recv() and stall polling.
+	respCh     chan civ.Decoded
+	specCh     chan civ.Decoded
+	readerDone chan struct{}
+
+	// Spectrum scope (0x27). dualScope marks rigs whose waveform frames carry a
+	// leading main/sub selector byte (IC-7610/9700). scopeAmp is the latest
+	// reassembled sweep; scopeMu guards it (written by the scope goroutine, read
+	// via ScopeData from the binding goroutine).
+	dualScope bool
+	scopeMu   sync.Mutex
+	scopeAmp  []byte
+	scopeLow  int64 // spectrum left-edge frequency (from the sweep's header frame)
+	scopeHigh int64 // spectrum right-edge frequency
+	scopeSeq  int
+	scopeOn   bool
+	scopeFixed bool // true = fixed-span mode (tracked optimistically)
+	scopeSeen bool // logged the first sweep's structure once (on-rig verification)
+
 	curFreq       int64 // last frequency read (for sideband choice)
 	curModeByte   byte  // last raw Icom mode byte (for filter re-send)
+	pollN         int   // ReadState cycle counter (staggers slow reads)
+	splitOn       bool  // last read split state (refreshed every few cycles)
+	splitTXFreq   int64 // last read unselected/TX VFO freq while in split
 	readFails     int   // consecutive ReadState freq-read failures (transient tolerance)
 	lastSetFreq   int64 // last frequency commanded (spot click: freq then mode)
 	lastSetFreqAt time.Time
@@ -62,6 +88,7 @@ func NewIcomSerial(portName string, baud, civAddr int, digitalDefault string) *I
 		rigAddr:    byte(civAddr),
 		digital:    strings.ToUpper(digitalDefault),
 		model:      "Icom",
+		scopeFixed: true, // rigs default to a fixed-span scope
 	}
 }
 
@@ -85,9 +112,17 @@ func (b *IcomSerial) Connect() error {
 	_ = port.SetDTR(false)
 	_ = port.SetRTS(false)
 	b.port = port
-	b.rx = b.rx[:0]
 	b.model = civ.ModelName(b.rigAddr)
 
+	// Start the reader before any request: recv() now waits on respCh, which only
+	// the reader feeds. respCh is buffered so a burst (or the scope stream) never
+	// blocks the reader; specCh holds the latest scope frames for the panadapter.
+	b.respCh = make(chan civ.Decoded, 64)
+	b.specCh = make(chan civ.Decoded, 32)
+	b.readerDone = make(chan struct{})
+	go b.reader(port, b.readerDone)
+	go b.scopeLoop(b.specCh, b.readerDone)
+
 	// Best-effort model identification: ask the rig for its own CI-V address.
 	if err := b.write(civ.CmdReadID, civ.SubPTT); err == nil {
 		if f, err := b.recv(icomReadTimeout, func(d civ.Decoded) bool {
@@ -96,15 +131,22 @@ func (b *IcomSerial) Connect() error {
 			b.model = civ.ModelName(f.Data[1])
 		}
 	}
+	// Dual-scope rigs (IC-7610/9700) prefix each waveform frame with a main/sub
+	// selector byte; single-scope rigs (IC-7300…) do not.
+	b.dualScope = b.rigAddr == 0x98 || b.rigAddr == 0xA2
 	b.readDSP() // best-effort initial snapshot for the control tab
 	return nil
 }
 
 func (b *IcomSerial) Disconnect() {
 	if b.port != nil {
-		_ = b.port.Close()
+		_ = b.port.Close() // unblocks the reader's pending Read
 		b.port = nil
 	}
+	if b.readerDone != nil {
+		<-b.readerDone // wait for the reader goroutine to exit cleanly
+		b.readerDone = nil
+	}
 }
 
 // ReadState polls the rig for frequency and mode. A failed frequency read is
@@ -151,15 +193,49 @@ func (b *IcomSerial) ReadState() (RigState, error) {
 		b.dspMu.Unlock()
 	}
 
+	b.pollN++
+
 	// Split: the selected VFO (read above) is RX; the unselected VFO is TX. ADIF
-	// convention → FreqHz = TX, RxFreqHz = RX.
+	// convention → FreqHz = TX, RxFreqHz = RX. Split changes rarely and its read
+	// (0x0F + 0x25, each with a 350 ms timeout) is the costliest part of a poll,
+	// so refresh it only every 4th cycle and reuse the cached value between —
+	// this keeps the CAT thread free for the freq/mode/meter reads and, above
+	// all, for the user's Set* commands.
+	if b.pollN%4 == 1 {
+		b.splitOn, b.splitTXFreq = false, 0
 		if on, ok := b.readSplit(); ok && on {
-		if txHz, ok2 := b.readTXFreq(); ok2 && txHz > 0 && txHz != s.FreqHz {
+			if txHz, ok2 := b.readTXFreq(); ok2 && txHz > 0 {
+				b.splitOn, b.splitTXFreq = true, txHz
+			}
+		}
+	}
+	if b.splitOn && b.splitTXFreq > 0 && b.splitTXFreq != s.FreqHz {
 		s.Split = true
 		s.RxFreqHz = s.FreqHz  // selected VFO = RX
-			s.FreqHz = txHz       // unselected VFO = TX
+		s.FreqHz = b.splitTXFreq // unselected VFO = TX
+	}
+
+	// Live meters + TX state for the Icom panel (the rig doesn't push these).
+	tx := b.readTX()
+	sm, _ := b.readMeter(civ.SubMeterS)
+	po, swr := 0, 0
+	if tx {
+		if v, ok := b.readMeter(civ.SubMeterPo); ok {
+			po = v
+		}
+		if v, ok := b.readMeter(civ.SubMeterSWR); ok {
+			swr = v
 		}
 	}
+	b.dspMu.Lock()
+	b.dsp.Available = true
+	b.dsp.Model = b.model
+	b.dsp.Transmitting = tx
+	b.dsp.Split = s.Split
+	b.dsp.SMeter = sm
+	b.dsp.PowerMeter = po
+	b.dsp.SWRMeter = swr
+	b.dspMu.Unlock()
 	return s, nil
 }
 
@@ -201,39 +277,252 @@ func (b *IcomSerial) SetPTT(on bool) error {
 // ── helpers ───────────────────────────────────────────────────────────────
 
 func (b *IcomSerial) write(payload ...byte) error {
+	// Drop any stale/unsolicited frames buffered from before this command so
+	// recv() only sees the reply to THIS request (avoids a previous command's ack
+	// or an unsolicited dial-turn update being mistaken for our response).
+	b.drainResp()
 	_, err := b.port.Write(civ.Frame(b.rigAddr, civ.AddrController, payload...))
 	return err
 }
 
-// recv reads from the port until a frame from the rig satisfies match or the
+// recv waits for a frame the reader routed to respCh that satisfies match, or
-// timeout elapses. Frames that are our own echo (from == controller) or don't
+// times out. The reader has already discarded echoes and split off scope frames,
-// match are discarded.
+// so recv only ever sees candidate control replies.
 func (b *IcomSerial) recv(timeout time.Duration, match func(civ.Decoded) bool) (civ.Decoded, error) {
-	deadline := time.Now().Add(timeout)
+	deadline := time.After(timeout)
-	tmp := make([]byte, 256)
+	for {
-	for time.Now().Before(deadline) {
+		select {
-		n, err := b.port.Read(tmp)
+		case f := <-b.respCh:
-		if err != nil {
-			return civ.Decoded{}, err
-		}
-		if n == 0 {
-			continue
-		}
-		b.rx = append(b.rx, tmp[:n]...)
-		frames, consumed := civ.Scan(b.rx)
-		if consumed > 0 {
-			b.rx = append(b.rx[:0], b.rx[consumed:]...)
-		}
-		for _, f := range frames {
-			if f.From != b.rigAddr {
-				continue // skip echo of our own commands
-			}
 			if match(f) {
 				return f, nil
 			}
-		}
+		case <-deadline:
-	}
 			return civ.Decoded{}, fmt.Errorf("icom: timeout waiting for response")
+		}
+	}
+}
+
+// reader is the sole owner of port.Read. It decodes the CI-V byte stream into
+// frames and routes each: our own echoes are dropped, spectrum-scope frames
+// (0x27) go to specCh, everything else (control replies, acks, unsolicited
+// transceive updates) goes to respCh. It exits when the port is closed.
+func (b *IcomSerial) reader(port serial.Port, done chan struct{}) {
+	defer close(done)
+	tmp := make([]byte, 512)
+	var rx []byte
+	for {
+		n, err := port.Read(tmp)
+		if err != nil {
+			return // port closed or failed — Disconnect/reconnect handles it
+		}
+		if n == 0 {
+			continue // read timeout with no data
+		}
+		rx = append(rx, tmp[:n]...)
+		frames, consumed := civ.Scan(rx)
+		if consumed > 0 {
+			rx = append(rx[:0], rx[consumed:]...)
+		}
+		for _, f := range frames {
+			if f.From != b.rigAddr {
+				continue // echo of our own command
+			}
+			if f.Cmd == civ.CmdScope {
+				b.route(b.specCh, f)
+				continue
+			}
+			b.route(b.respCh, f)
+		}
+	}
+}
+
+// route delivers a frame without ever blocking the reader: if the channel is
+// full it drops the oldest entry to make room for the newest.
+func (b *IcomSerial) route(ch chan civ.Decoded, f civ.Decoded) {
+	select {
+	case ch <- f:
+	default:
+		select { // buffer full — discard oldest, then enqueue newest
+		case <-ch:
+		default:
+		}
+		select {
+		case ch <- f:
+		default:
+		}
+	}
+}
+
+// drainResp empties any pending control frames (non-blocking).
+func (b *IcomSerial) drainResp() {
+	for {
+		select {
+		case <-b.respCh:
+		default:
+			return
+		}
+	}
+}
+
+// ── spectrum scope (0x27) ───────────────────────────────────────────────────
+
+// scopeLoop reassembles the Icom's divided waveform frames into complete sweeps.
+// Frame layout (verified on an IC-7610): Data = [00, main/sub, seq, total, …].
+// The first frame (seq==1) is a HEADER — [info, low-edge 5-BCD, high-edge 5-BCD]
+// — and carries NO waveform bytes; frames 2..total each carry a block of
+// amplitude bytes. So we parse the edges from frame 1 and concatenate frames
+// 2..total for the trace.
+func (b *IcomSerial) scopeLoop(spec chan civ.Decoded, done chan struct{}) {
+	regions := make(map[byte][]byte)
+	var total byte
+	rawN := 0                     // diagnostic: dump the first few raw 0x27 frames
+	loggedCfg := map[byte]bool{}  // one-shot dump of each config read response
+	for {
+		select {
+		case <-done:
+			return
+		case f := <-spec:
+			if len(f.Data) < 1 {
+				continue
+			}
+			if f.Data[0] != civ.SubScopeData {
+				// Non-waveform 0x27 frame = a config read response (mode/span/edge).
+				// Log each subcommand once so we can confirm its exact byte layout.
+				if !loggedCfg[f.Data[0]] {
+					loggedCfg[f.Data[0]] = true
+					applog.Printf("icom scope cfg 0x%02X: data=[% X]", f.Data[0], f.Data)
+				}
+				continue
+			}
+			if rawN < 4 {
+				rawN++
+				applog.Printf("icom scope raw #%d: len=%d data=[% X]", rawN, len(f.Data), f.Data)
+			}
+			idx := 1
+			if b.dualScope {
+				if len(f.Data) < 2 || f.Data[1] != 0x00 {
+					continue // only the MAIN scope
+				}
+				idx = 2
+			}
+			if len(f.Data) < idx+2 {
+				continue
+			}
+			seq, tot := f.Data[idx], f.Data[idx+1]
+			region := f.Data[idx+2:]
+			if seq == 0 || tot == 0 {
+				continue
+			}
+			if seq == 1 { // header frame — begins a new sweep, no waveform data
+				regions = make(map[byte][]byte)
+				total = tot
+				if len(region) >= 11 { // [info][low 5][high 5]
+					low := civ.BCDToFreq(region[1:6])
+					high := civ.BCDToFreq(region[6:11])
+					b.scopeMu.Lock()
+					b.scopeLow, b.scopeHigh = low, high
+					b.scopeMu.Unlock()
+				}
+				continue
+			}
+			if total == 0 || tot != total {
+				continue // stray frame from a sweep whose header we missed
+			}
+			regions[seq] = append([]byte(nil), region...)
+			if seq == total { // last data frame — assemble in sequence order
+				b.assembleSweep(regions, total)
+			}
+		}
+	}
+}
+
+func (b *IcomSerial) assembleSweep(regions map[byte][]byte, total byte) {
+	var amp []byte
+	for s := byte(2); s <= total; s++ {
+		amp = append(amp, regions[s]...)
+	}
+	b.scopeMu.Lock()
+	b.scopeAmp = amp
+	b.scopeSeq++
+	firstLog := !b.scopeSeen
+	b.scopeSeen = true
+	low, high := b.scopeLow, b.scopeHigh
+	b.scopeMu.Unlock()
+	if firstLog {
+		applog.Printf("icom scope: first sweep — model=%s total=%d points=%d edges=%d..%d Hz",
+			b.model, total, len(amp), low, high)
+	}
+}
+
+// SetScope enables or disables the spectrum scope. Two commands are needed and
+// RS-BA1 sends both: 0x27 0x10 turns the scope DISPLAY on (without it the rig
+// streams nothing — the case when we're remote and can't touch the front panel),
+// and 0x27 0x11 turns the waveform data OUTPUT over CI-V on. While on, the reader
+// routes every 0x27 frame to scopeLoop.
+func (b *IcomSerial) SetScope(on bool) error {
+	// Some firmwares don't ack 0x27 sets; a timeout here isn't fatal, so log and
+	// continue rather than abort the second command.
+	if err := b.exec(civ.CmdScope, civ.SubScopeOnOff, boolByte(on)); err != nil {
+		applog.Printf("icom scope: display on=%v ack: %v", on, err)
+	}
+	if err := b.exec(civ.CmdScope, civ.SubScopeOn, boolByte(on)); err != nil {
+		applog.Printf("icom scope: output on=%v ack: %v", on, err)
+	}
+	b.scopeMu.Lock()
+	b.scopeOn = on
+	if !on {
+		b.scopeAmp = nil
+	}
+	b.scopeMu.Unlock()
+	if on {
+		// Fire read requests for the mode/span/edge settings; their 0x27 responses
+		// route to scopeLoop, which logs each once so we can confirm the layout.
+		// Best-effort (fire-and-forget) — responses are 0x27, not FB/FA acks.
+		b.scopeReadCfg()
+	}
+	return nil
+}
+
+// scopeReadCfg requests the scope's mode/span/edge settings for the diagnostic
+// log. Sent both with and without the leading main/sub selector byte so we
+// capture whichever form the rig answers.
+func (b *IcomSerial) scopeReadCfg() {
+	for _, sub := range []byte{civ.SubScopeMode, civ.SubScopeSpan, civ.SubScopeEdge} {
+		_ = b.write(civ.CmdScope, sub)
+		if b.dualScope {
+			_ = b.write(civ.CmdScope, sub, 0x00)
+		}
+	}
+}
+
+// SetScopeMode selects fixed-span (true) or center-on-VFO (false). Center mode
+// makes the scope follow the VFO, so tuning pans the view left/right.
+func (b *IcomSerial) SetScopeMode(fixed bool) error {
+	mode := boolByte(fixed) // 0 = center, 1 = fixed (verify on rig via the cfg log)
+	var payload []byte
+	if b.dualScope {
+		payload = []byte{civ.CmdScope, civ.SubScopeMode, 0x00, mode}
+	} else {
+		payload = []byte{civ.CmdScope, civ.SubScopeMode, mode}
+	}
+	if err := b.exec(payload...); err != nil {
+		applog.Printf("icom scope: set mode fixed=%v ack: %v", fixed, err)
+	}
+	b.scopeMu.Lock()
+	b.scopeFixed = fixed
+	b.scopeMu.Unlock()
+	return nil
+}
+
+// ScopeData returns a copy of the latest reassembled sweep as a number array.
+func (b *IcomSerial) ScopeData() ScopeSweep {
+	b.scopeMu.Lock()
+	defer b.scopeMu.Unlock()
+	amp := make([]int, len(b.scopeAmp))
+	for i, v := range b.scopeAmp {
+		amp[i] = int(v)
+	}
+	return ScopeSweep{Amp: amp, Seq: b.scopeSeq, LowHz: b.scopeLow, HighHz: b.scopeHigh, Fixed: b.scopeFixed}
 }
 
 // exec sends a set command and waits for the rig's OK (FB) / NG (FA) ack.
@@ -296,6 +585,34 @@ func (b *IcomSerial) readTXFreq() (int64, bool) {
 	return civ.BCDToFreq(f.Data[1:]), true
 }
 
+// readTX reads the transmit state (CI-V 0x1C 0x00): non-zero data = keyed.
+func (b *IcomSerial) readTX() bool {
+	if err := b.write(civ.CmdPTT, civ.SubPTT); err != nil {
+		return false
+	}
+	f, err := b.recv(icomDSPTimeout, func(d civ.Decoded) bool {
+		return d.Cmd == civ.CmdPTT && len(d.Data) >= 2 && d.Data[0] == civ.SubPTT
+	})
+	if err != nil {
+		return false
+	}
+	return f.Data[1] != 0
+}
+
+// readMeter reads a meter (CI-V 0x15) and returns it scaled to 0-100.
+func (b *IcomSerial) readMeter(sub byte) (int, bool) {
+	if err := b.write(civ.CmdMeter, sub); err != nil {
+		return 0, false
+	}
+	f, err := b.recv(icomDSPTimeout, func(d civ.Decoded) bool {
+		return d.Cmd == civ.CmdMeter && len(d.Data) >= 3 && d.Data[0] == sub
+	})
+	if err != nil {
+		return 0, false
+	}
+	return from255(civ.BCDToLevel(f.Data[1:3])), true
+}
+
 func (b *IcomSerial) readMode() (byte, bool) {
 	if err := b.write(civ.CmdReadMode); err != nil {
 		return 0, false
@@ -377,7 +694,14 @@ func (b *IcomSerial) RefreshIcom() error {
 func (b *IcomSerial) readDSP() {
 	st := IcomTXState{Available: true, Model: b.model}
 	b.dspMu.Lock()
-	st.Mode = b.dsp.Mode // preserve mode (set by ReadState)
+	// Preserve the live fields ReadState polls (mode, TX/split, meters) — readDSP
+	// only refreshes the set-once DSP values.
+	st.Mode = b.dsp.Mode
+	st.Transmitting = b.dsp.Transmitting
+	st.Split = b.dsp.Split
+	st.SMeter = b.dsp.SMeter
+	st.PowerMeter = b.dsp.PowerMeter
+	st.SWRMeter = b.dsp.SWRMeter
 	b.dspMu.Unlock()
 
 	if v, ok := b.readLevel(civ.SubLevelAF); ok {
@@ -386,6 +710,12 @@ func (b *IcomSerial) readDSP() {
 	if v, ok := b.readLevel(civ.SubLevelRF); ok {
 		st.RFGain = from255(v)
 	}
+	if v, ok := b.readLevel(civ.SubLevelRFPower); ok {
+		st.RFPower = from255(v)
+	}
+	if v, ok := b.readLevel(civ.SubLevelMic); ok {
+		st.MicGain = from255(v)
+	}
 	if v, ok := b.readLevel(civ.SubLevelNR); ok {
 		st.NRLevel = from255(v)
 	}
@@ -577,6 +907,35 @@ func (b *IcomSerial) SetIcomFilter(n int) error {
 	return nil
 }
 
+func (b *IcomSerial) SetRFPower(p int) error {
+	if err := b.exec(append([]byte{civ.CmdLevel, civ.SubLevelRFPower}, civ.LevelToBCD(to255(p))...)...); err != nil {
+		return err
+	}
+	b.setCache(func(s *IcomTXState) { s.RFPower = clampPct(p) })
+	return nil
+}
+
+func (b *IcomSerial) SetMicGain(p int) error {
+	if err := b.exec(append([]byte{civ.CmdLevel, civ.SubLevelMic}, civ.LevelToBCD(to255(p))...)...); err != nil {
+		return err
+	}
+	b.setCache(func(s *IcomTXState) { s.MicGain = clampPct(p) })
+	return nil
+}
+
+func (b *IcomSerial) SetIcomSplit(on bool) error {
+	if err := b.exec(civ.CmdSplit, boolByte(on)); err != nil {
+		return err
+	}
+	b.setCache(func(s *IcomTXState) { s.Split = on })
+	return nil
+}
+
+// TuneATU triggers a one-shot antenna-tuner tune (CI-V 0x1C 0x01 0x02).
+func (b *IcomSerial) TuneATU() error {
+	return b.exec(civ.CmdATU, civ.SubATU, 0x02)
+}
+
 func (b *IcomSerial) setCache(fn func(*IcomTXState)) {
 	b.dspMu.Lock()
 	fn(&b.dsp)