chore: release v0.27.3

A deleted message is a free slot, per its operator; keeping the label made it
look half-deleted.

app.go

@@ -10239,7 +10239,7 @@ func titleEntity(s string) string {
 // the configured "Recording mic", transmit via "To Radio", preview via
 // "Listening".
 
-const dvkSlots = 6
+const dvkSlots = 12
 
 // DVKMessage is one voice-keyer slot for the UI.
 type DVKMessage struct {
@@ -10300,6 +10300,22 @@ func (a *App) GetDVKMessages() []DVKMessage {
 	return out
 }
 
+// DVKDelete removes a slot's recording AND its label — a deleted message is a
+// free slot, per its operator.
+func (a *App) DVKDelete(slot int) error {
+	if slot < 1 || slot > dvkSlots {
+		return fmt.Errorf("bad slot")
+	}
+	if err := os.Remove(a.dvkPath(slot)); err != nil && !os.IsNotExist(err) {
+		return fmt.Errorf("delete message %d: %w", slot, err)
+	}
+	if a.settings != nil {
+		_ = a.settings.Set(a.ctx, dvkLabelKey(slot), "")
+	}
+	applog.Printf("dvk: message F%d deleted (label cleared)", slot)
+	return nil
+}
+
 // SetDVKLabel renames a voice-keyer slot.
 func (a *App) SetDVKLabel(slot int, label string) error {
 	if a.settings == nil {

changelog.json

@@ -1,4 +1,22 @@
 [
+  {
+    "version": "0.27.3",
+    "date": "",
+    "en": [
+      "KPA500: the amplifier no longer switches itself off and commands respond instantly. A command this model does not know (the KPA1500’s ATU poll) was tearing the link down every cycle, and each reconnect toggled the serial control lines — which are the KPA500’s power switch. The lines are now held steady, silence is not treated as a dead link, and the baud is picked from a list.",
+      "FT decodes: within a period, decodes are listed in arrival order — mirroring the decoder’s own window — instead of strongest-first.",
+      "Voice keyer: twelve message slots (F1–F12) instead of six.",
+      "Preferences open smoothly on a busy station: while the dialog is open, cluster spots, FT decodes and CAT snapshots queue quietly instead of repainting the whole window behind it — everything catches up the moment it closes.",
+      "Voice keyer: a delete button per message — removes the recording and clears the label."
+    ],
+    "fr": [
+      "KPA500 : l’ampli ne s’éteint plus tout seul et les commandes répondent instantanément. Une commande inconnue de ce modèle (le poll ATU du KPA1500) détruisait le lien à chaque cycle, et chaque reconnexion basculait les lignes de contrôle série — qui sont l’interrupteur du KPA500. Les lignes sont désormais tenues stables, le silence n’est plus traité comme un lien mort, et le baud se choisit dans une liste.",
+      "FT decodes : dans une période, les décodages sont listés dans l’ordre d’arrivée — comme la fenêtre du décodeur — au lieu du plus fort d’abord.",
+      "Manipulateur vocal : douze messages (F1–F12) au lieu de six.",
+      "Les Préférences restent fluides sur une station chargée : dialogue ouvert, les spots cluster, les décodages FT et les instantanés CAT patientent en file au lieu de repeindre toute la fenêtre derrière — tout se rattrape à la fermeture.",
+      "Manipulateur vocal : un bouton supprimer par message — efface l’enregistrement et le libellé."
+    ]
+  },
   {
     "version": "0.27.2",
     "date": "",

frontend/src/App.tsx

@@ -2228,6 +2228,15 @@ export default function App() {
   const [bulkEditIds, setBulkEditIds] = useState<number[]>([]);
   const [bulkEditOpen, setBulkEditOpen] = useState(false);
   const [showSettings, setShowSettings] = useState(false);
+  // While the Settings dialog is open, the spot/decode flushes and the CAT
+  // snapshot stream are PAUSED (data keeps accumulating in the pending refs).
+  // Every flush re-renders the whole App tree behind the dialog — cluster
+  // grid, decodes panel, thousands of nodes — and with a busy cluster plus
+  // two decoders the pointer visibly stuttered over the preferences.
+  const showSettingsRef = useRef(false);
+  useEffect(() => { showSettingsRef.current = showSettings; }, [showSettings]);
+  const flushSpotsRef = useRef<() => void>(() => {});
+  const flushDecodesRef = useRef<() => void>(() => {});
   // Re-read the "beam on map" toggle when Preferences closes (it's edited there).
   useEffect(() => { if (!showSettings) setShowBeamOnMap(localStorage.getItem('opslog.showBeamOnMap') !== '0'); }, [showSettings]);
   useEffect(() => { if (!showSettings) setRotorCompact(localStorage.getItem('opslog.rotorCompact') === '1'); }, [showSettings]);
@@ -3435,7 +3444,15 @@ export default function App() {
   // Apply a CAT snapshot to the entry strip (freq/band/mode), unless the user
   // just typed something (freeze window) or locked a field. Shared by the live
   // cat:state event and the startup poll below.
+  const lastCatWhileSettingsRef = useRef(0);
   function applyCatState(s: CATState) {
+    // Behind the Settings dialog nobody reads a frequency four times a second;
+    // each snapshot re-renders the whole App tree under the pointer.
+    if (showSettingsRef.current) {
+      const now = Date.now();
+      if (now - lastCatWhileSettingsRef.current < 2000) return;
+      lastCatWhileSettingsRef.current = now;
+    }
     setCatState(s);
     if (!s?.connected) return;
     // A snapshot arriving during the freeze used to be DROPPED, and that lost the
@@ -3580,11 +3597,19 @@ export default function App() {
     // Commit the staged spots: resolve the status for any slot we don't know yet
     // FIRST, then insert the rows — so they appear with the right badge already
     // painted instead of flashing plain text then flipping to a pill.
+    // eslint-disable-next-line prefer-const
     const flushPendingSpots = async () => {
       pendingSpotTimer.current = undefined;
+      // Settings open: leave everything queued (bounded) and repaint nothing.
+      if (showSettingsRef.current) {
+        const cap = spotsCapRef.current;
+        if (pendingSpotsRef.current.length > cap) pendingSpotsRef.current = pendingSpotsRef.current.slice(-cap);
+        return;
+      }
       const batch = pendingSpotsRef.current;
       pendingSpotsRef.current = [];
       if (batch.length === 0) return;
+      // (registered below so closing Settings can drain the queue)
       // Resolve unknown statuses before the rows go in.
       try {
         const known = spotStatusRef.current;
@@ -3640,6 +3665,7 @@ export default function App() {
         return next.length > cap ? next.slice(0, cap) : next;
       });
     };
+    flushSpotsRef.current = () => { void flushPendingSpots(); };
     const unsubSpot = EventsOn('cluster:spot', (sp: ClusterSpot) => {
       // Stage the spot; a short timer resolves its status then commits it.
       pendingSpotsRef.current.push(sp);
@@ -3687,6 +3713,10 @@ export default function App() {
     // decodes panel and plain worked in the cluster list two seconds later.
     const flushDecodes = async () => {
       pendingDecodeTimer.current = undefined;
+      if (showSettingsRef.current) {
+        if (pendingDecodesRef.current.length > 3000) pendingDecodesRef.current = pendingDecodesRef.current.slice(-3000);
+        return;
+      }
       const batch = pendingDecodesRef.current;
       pendingDecodesRef.current = [];
       if (batch.length === 0) return;
@@ -3729,6 +3759,7 @@ export default function App() {
         return next;
       });
     };
+    flushDecodesRef.current = () => { void flushDecodes(); };
 
     const unsubDecode = EventsOn('udp:decode', (d: DecodeRow) => {
       pendingDecodesRef.current.push(d);
@@ -4375,6 +4406,10 @@ export default function App() {
   // The stable wrapper the dialog actually receives.
   const openQSOFromSettings = useCallback((id: number) => openEditRef.current(id), []);
   const closeSettings = useCallback(() => {
+    // Synchronously: the ref effect runs after the next render, and flushing
+    // through a still-true ref would hit the pause gate again.
+    showSettingsRef.current = false;
+    window.setTimeout(() => { flushSpotsRef.current(); flushDecodesRef.current(); }, 50);
     setShowSettings(false);
     setSettingsSection(undefined);
     refreshChaseNew();
@@ -5203,7 +5238,7 @@ export default function App() {
         if (dvkActiveRef.current) {
           // Voice keyer: plain F1..F6 transmit the message; Ctrl+F1..F5 → tabs.
           if (mod && n <= 5) { e.preventDefault(); setDetailTab(TABS[n - 1]); return; }
-          if (plain && n <= 6) { e.preventDefault(); dvkPlayRef.current(n); return; }
+          if (plain && n <= 12) { e.preventDefault(); dvkPlayRef.current(n); return; }
           return;
         }
         // No keyer: plain F1..F5 switch the detail tab (labels read "F1…").

frontend/src/components/DecodesPanel.tsx

@@ -498,10 +498,11 @@ function buildPeriods(filtered: Decode[], txMsgs: TxMsg[]) {
       // the same way it was grouped.
       tr: trSeconds(g.decodes[0]?.mode ?? g.tx[0]?.mode, g.decodes[0]?.tr_period),
       tx: g.tx,
-      // Strongest first inside a period: the eye should land on what is
+      // ARRIVAL order inside a period, per the operator: it mirrors the
-      // workable, and time within a slot means nothing — they were all
+      // decoder's own window line for line, which makes the two screens
-      // transmitting simultaneously.
+      // comparable at a glance — the strongest-first sort scrambled that
-      decodes: g.decodes.sort((x, y) => y.snr - x.snr),
+      // correspondence, and SNR is right there in its column anyway.
+      decodes: g.decodes,
     }));
 }
 

frontend/src/components/DvkPanel.tsx

@@ -19,7 +19,7 @@ type Props = {
   phoneOk: boolean; // false when the rig is on a non-phone mode → DVK TX blocked
 };
 
-// Operating panel for the Digital Voice Keyer — transmits the recorded F1–F6
+// Operating panel for the Digital Voice Keyer — transmits the recorded F1–F12
 // voice messages to the rig ("To Radio"). Mirrors the WinKeyer panel's slot in
 // the reserved area. Recording/labeling lives in Settings → Audio.
 export function DvkPanel({ messages, status, onPlay, onStop, onClose, autoCq, autoCqSecs, onToggleAutoCq, onSetAutoCqSecs, phoneOk }: Props) {

frontend/src/components/SettingsModal.tsx

@@ -9,7 +9,7 @@ import {
 import {
   GetLookupSettings, SaveLookupSettings, ClearLookupCache, TestLookupProvider,
   GetListsSettings, SaveListsSettings,
-  GetCATSettings, SaveCATSettings, GetRadios, SaveRadios, SetActiveRadio, ActiveRadioID, DiscoverFlexRadios,
+  GetCATSettings, SaveCATSettings, GetRadios, SaveRadios, SetActiveRadio, ActiveRadioID, DiscoverFlexRadios, DVKDelete,
   GetAudioMonitorPref,
   ListProfiles, GetActiveProfile, SaveProfile, DeleteProfile, ActivateProfile, DuplicateProfile,
   GetRotators, SaveRotators, TestRotatorDevice, RotatorPark, RotatorStop,
@@ -4416,8 +4416,17 @@ function SettingsModalImpl({ onClose, onSaved, initialSection, onMainPaneChanged
                     </div>
                     <div className="space-y-1">
                       <Label>Baud</Label>
-                      <Input type="number" min={1200} value={amp.baud}
+                      {/* A list, not a free number: the KPA500 report that
-                        onChange={(e) => patchAmp(i, { baud: parseInt(e.target.value) || 115200 })} className="font-mono" />
+                          began this had its operator wondering whether a typed
+                          baud was the whole problem. These are the rates the
+                          supported amplifiers actually speak. */}
+                      <select value={String(amp.baud)}
+                        onChange={(e) => patchAmp(i, { baud: parseInt(e.target.value) })}
+                        className="h-9 w-full px-2 rounded-md border border-border bg-background text-sm font-mono">
+                        {[4800, 9600, 19200, 38400, 57600, 115200].map((b) => (
+                          <option key={b} value={String(b)}>{b}</option>
+                        ))}
+                      </select>
                     </div>
                   </div>
                 ) : (
@@ -7169,6 +7178,15 @@ function SettingsModalImpl({ onClose, onSaved, initialSection, onMainPaneChanged
                   >
                     {dvkStat.playing ? t('aud.stop') : t('aud.play')}
                   </Button>
+                  <Button
+                    type="button"
+                    variant="outline" size="sm" className="h-8 w-9 shrink-0 px-0 text-danger hover:text-danger"
+                    title={t('aud.deleteMsg')}
+                    disabled={!m.has_audio || dvkStat.recording || dvkStat.playing}
+                    onClick={() => DVKDelete(m.slot).then(reloadDvk).catch((err) => setDvkErr(String(err?.message ?? err)))}
+                  >
+                    <Trash2 className="size-3.5" />
+                  </Button>
                 </div>
               );
             })}

frontend/src/lib/i18n.tsx

@@ -449,7 +449,7 @@ const en: Dict = {
   'wkp.cwSpeed': 'CW speed (WPM)', 'wkp.faster': 'Faster', 'wkp.slower': 'Slower', 'wkp.cwText': 'CW text', 'wkp.sendOnTypeHint': 'Key each character live as you type (backspace removes un-sent chars)', 'wkp.sendOnType': 'send on type', 'wkp.phLive': 'Type — sent live…', 'wkp.phEnter': 'Type and press Enter to send…', 'wkp.clear': 'Clear', 'wkp.send': 'Send', 'wkp.abort': 'Abort (clear keyer buffer)', 'wkp.stop': 'Stop',
   'wkp.breakIn': 'Break-in', 'wkp.breakInHint': "The rig's CW keyer only transmits when break-in is SEMI or FULL. OFF keys the sidetone but stays in receive.", 'wkp.bkOff': 'OFF', 'wkp.bkOffWarn': "won't transmit — set SEMI or FULL",
   'wkp.autoCallHint': 'Click a CQ macro (one whose text contains CQ) to resend it on a loop — message, gap, repeat — until you send another macro (e.g. a report), press Stop, or hit ESC. Non-CQ macros send once.', 'wkp.autoCall': 'Auto-call', 'wkp.gap': 'gap', 'wkp.gapHint': 'Seconds to wait after the message before resending', 'wkp.loopHint': 'click a CQ macro to loop it', 'wkp.macroN': 'Macro {n}',
-  'dvkp.voiceKeyer': 'Voice keyer', 'dvkp.autoCq': 'Auto CQ', 'dvkp.autoCqHint': 'Repeat a CQ-labelled message on a timer until you stop it or play another slot', 'dvkp.gap': 'Gap', 'dvkp.notPhone': 'The voice keyer only transmits on a phone mode (SSB/AM/FM)', 'dvkp.stop': 'Stop', 'dvkp.disable': 'Disable voice keyer', 'dvkp.noMsgPre': 'No messages recorded yet. Open', 'dvkp.settingsPath': 'Settings → Audio devices & voice keyer', 'dvkp.noMsgPost': 'to record F1–F6.', 'dvkp.transmit': 'Transmit F{slot}{label} ({dur}s)', 'dvkp.empty': 'F{slot} — empty', 'dvkp.message': 'message',
+  'dvkp.voiceKeyer': 'Voice keyer', 'dvkp.autoCq': 'Auto CQ', 'dvkp.autoCqHint': 'Repeat a CQ-labelled message on a timer until you stop it or play another slot', 'dvkp.gap': 'Gap', 'dvkp.notPhone': 'The voice keyer only transmits on a phone mode (SSB/AM/FM)', 'dvkp.stop': 'Stop', 'dvkp.disable': 'Disable voice keyer', 'dvkp.noMsgPre': 'No messages recorded yet. Open', 'dvkp.settingsPath': 'Settings → Audio devices & voice keyer', 'dvkp.noMsgPost': 'to record F1–F12.', 'dvkp.transmit': 'Transmit F{slot}{label} ({dur}s)', 'dvkp.empty': 'F{slot} — empty', 'dvkp.message': 'message',
   'agp.portDeselect': 'Port {letter} — click to deselect', 'agp.portSelect': 'Select on port {letter}', 'agp.online': 'online', 'agp.offline': 'offline', 'agp.close': 'Close', 'agp.connecting': 'Connecting…', 'agp.noAntennas': 'No antennas configured.', 'agp.filterOnHint': 'Showing antennas for {band} only — click to show all bands', 'agp.filterOffHint': 'Showing all antennas — click to show only the current band',
   'ampw.title': 'Amplifier', 'ampw.all': 'All amplifiers', 'ampw.pick': 'Which amplifier the widget shows',
   'ampw.showHint': 'Amplifier · click to show', 'ampw.hideHint': 'Amplifier — shown · click to hide',
@@ -535,7 +535,7 @@ const en: Dict = {
   'aud.preroll': 'Pre-roll (seconds)', 'aud.format': 'File format', 'aud.wav': 'WAV (lossless, larger)', 'aud.mp3': 'MP3 (compressed, small)',
   'aud.fromLevel': 'From Radio level', 'aud.txLevel': 'Voice keyer level', 'aud.txLevelHint': 'Level of the recorded messages sent to the radio. Raise it if your voice keyer is much quieter than your microphone; Play previews at this same level. If the radio transmits almost nothing, its modulation source is still the front microphone: on an FTDX10 set MENU → SSB MOD SOURCE to REAR (the USB input).', 'aud.micLevel': 'Mic level', 'aud.qsoPlayLevel': 'QSO playback level', 'aud.levelHint': 'If your voice is louder than the station, lower Mic level.',
   'aud.autoSend': 'Auto-send the recording to the station by e-mail when I log a QSO',
-  'aud.dvkTitle': 'Voice keyer messages (F1–F6)', 'aud.pttMethod': 'PTT method', 'aud.pttNone': 'None (VOX)', 'aud.pttCat': 'CAT (the radio link)', 'aud.pttRts': 'Serial RTS', 'aud.pttDtr': 'Serial DTR',
+  'aud.dvkTitle': 'Voice keyer messages (F1–F12)', 'aud.deleteMsg': 'Delete this message', 'aud.pttMethod': 'PTT method', 'aud.pttNone': 'None (VOX)', 'aud.pttCat': 'CAT (the radio link)', 'aud.pttRts': 'Serial RTS', 'aud.pttDtr': 'Serial DTR',
   'aud.testPtt': 'Test PTT', 'aud.pttPort': 'PTT COM port', 'aud.pickPort': 'Pick a COM port', 'aud.selectPort': '— select —', 'aud.refresh': 'Refresh',
   'aud.msgPlaceholder': 'Message {n} label (CQ, report, 73…)', 'aud.holdRec': '● Hold to rec', 'aud.recordingNow': '● Recording…', 'aud.play': '▶ Play', 'aud.stop': '■ Stop',
   'aud.errPttTest': 'PTT test: ', 'aud.errRecord': 'Record: ', 'aud.errSave': 'Save: ', 'aud.errPlay': 'Play: ',
@@ -955,7 +955,7 @@ const fr: Dict = {
   'wkp.cwSpeed': 'Vitesse CW (WPM)', 'wkp.faster': 'Plus rapide', 'wkp.slower': 'Plus lent', 'wkp.cwText': 'Texte CW', 'wkp.sendOnTypeHint': 'Manipule chaque caractère en direct à la frappe (retour arrière supprime les caractères non émis)', 'wkp.sendOnType': 'émission à la frappe', 'wkp.phLive': 'Tape — émis en direct…', 'wkp.phEnter': 'Tape et appuie sur Entrée pour émettre…', 'wkp.clear': 'Effacer', 'wkp.send': 'Émettre', 'wkp.abort': 'Interrompre (vider le tampon du manipulateur)', 'wkp.stop': 'Stop',
   'wkp.breakIn': 'Break-in', 'wkp.breakInHint': "Le manipulateur interne de la radio n'émet que si le break-in est SEMI ou FULL. OFF génère la tonalité mais reste en réception.", 'wkp.bkOff': 'OFF', 'wkp.bkOffWarn': "n'émettra pas — mettre SEMI ou FULL",
   'wkp.autoCallHint': "Clique une macro CQ (dont le texte contient CQ) pour la réémettre en boucle — message, pause, répétition — jusqu'à envoyer une autre macro (ex. un report), appuyer sur Stop ou ESC. Les macros non-CQ ne sont émises qu'une fois.", 'wkp.autoCall': 'Appel auto', 'wkp.gap': 'pause', 'wkp.gapHint': 'Secondes à attendre après le message avant de réémettre', 'wkp.loopHint': 'clique une macro CQ pour la boucler', 'wkp.macroN': 'Macro {n}',
-  'dvkp.voiceKeyer': 'Manipulateur vocal', 'dvkp.autoCq': 'Auto CQ', 'dvkp.autoCqHint': 'Répète un message libellé CQ à intervalle régulier jusqu\'à l\'arrêt ou la lecture d\'un autre slot', 'dvkp.gap': 'Intervalle', 'dvkp.notPhone': 'Le manipulateur vocal n\'émet qu\'en mode phonie (SSB/AM/FM)', 'dvkp.stop': 'Stop', 'dvkp.disable': 'Désactiver le manipulateur vocal', 'dvkp.noMsgPre': 'Aucun message enregistré. Ouvre', 'dvkp.settingsPath': 'Réglages → Périphériques audio & manipulateur vocal', 'dvkp.noMsgPost': 'pour enregistrer F1–F6.', 'dvkp.transmit': 'Émettre F{slot}{label} ({dur}s)', 'dvkp.empty': 'F{slot} — vide', 'dvkp.message': 'message',
+  'dvkp.voiceKeyer': 'Manipulateur vocal', 'dvkp.autoCq': 'Auto CQ', 'dvkp.autoCqHint': 'Répète un message libellé CQ à intervalle régulier jusqu\'à l\'arrêt ou la lecture d\'un autre slot', 'dvkp.gap': 'Intervalle', 'dvkp.notPhone': 'Le manipulateur vocal n\'émet qu\'en mode phonie (SSB/AM/FM)', 'dvkp.stop': 'Stop', 'dvkp.disable': 'Désactiver le manipulateur vocal', 'dvkp.noMsgPre': 'Aucun message enregistré. Ouvre', 'dvkp.settingsPath': 'Réglages → Périphériques audio & manipulateur vocal', 'dvkp.noMsgPost': 'pour enregistrer F1–F12.', 'dvkp.transmit': 'Émettre F{slot}{label} ({dur}s)', 'dvkp.empty': 'F{slot} — vide', 'dvkp.message': 'message',
   'agp.portDeselect': 'Port {letter} — clic pour désélectionner', 'agp.portSelect': 'Sélectionner sur le port {letter}', 'agp.online': 'en ligne', 'agp.offline': 'hors ligne', 'agp.close': 'Fermer', 'agp.connecting': 'Connexion…', 'agp.noAntennas': 'Aucune antenne configurée.', 'agp.filterOnHint': 'Antennes du {band} uniquement — clic pour afficher toutes les bandes', 'agp.filterOffHint': 'Toutes les antennes affichées — clic pour n’afficher que la bande courante',
   'ampw.title': 'Amplificateur', 'ampw.all': 'Tous les amplis', 'ampw.pick': 'Ampli affiché par le widget',
   'ampw.showHint': 'Amplificateur · cliquer pour afficher', 'ampw.hideHint': 'Amplificateur — affiché · cliquer pour masquer',
@@ -1037,7 +1037,7 @@ const fr: Dict = {
   'aud.preroll': 'Pré-enregistrement (secondes)', 'aud.format': 'Format de fichier', 'aud.wav': 'WAV (sans perte, plus volumineux)', 'aud.mp3': 'MP3 (compressé, léger)',
   'aud.fromLevel': 'Niveau depuis la radio', 'aud.txLevel': 'Niveau du voice keyer', 'aud.txLevelHint': "Niveau des messages enregistrés envoyés à la radio. Augmentez-le si votre voice keyer est bien plus faible que votre micro ; Lire fait entendre ce même niveau. Si la radio n'émet presque rien, c'est que sa source de modulation est restée le micro de façade : sur un FTDX10, réglez MENU → SSB MOD SOURCE sur REAR (l'entrée USB).", 'aud.micLevel': 'Niveau micro', 'aud.qsoPlayLevel': 'Niveau de relecture QSO', 'aud.levelHint': 'Si votre voix est plus forte que la station, baissez le niveau micro.',
   'aud.autoSend': "Envoyer automatiquement l'enregistrement à la station par e-mail lorsque j'enregistre un QSO",
-  'aud.dvkTitle': 'Messages du manipulateur vocal (F1–F6)', 'aud.pttMethod': 'Méthode PTT', 'aud.pttNone': 'Aucune (VOX)', 'aud.pttCat': 'CAT (la liaison radio)', 'aud.pttRts': 'RTS série', 'aud.pttDtr': 'DTR série',
+  'aud.dvkTitle': 'Messages du manipulateur vocal (F1–F12)', 'aud.deleteMsg': 'Supprimer ce message', 'aud.pttMethod': 'Méthode PTT', 'aud.pttNone': 'Aucune (VOX)', 'aud.pttCat': 'CAT (la liaison radio)', 'aud.pttRts': 'RTS série', 'aud.pttDtr': 'DTR série',
   'aud.testPtt': 'Tester le PTT', 'aud.pttPort': 'Port COM du PTT', 'aud.pickPort': 'Choisir un port COM', 'aud.selectPort': '— choisir —', 'aud.refresh': 'Actualiser',
   'aud.msgPlaceholder': 'Libellé du message {n} (CQ, report, 73…)', 'aud.holdRec': '● Maintenir pour enreg.', 'aud.recordingNow': '● Enregistrement…', 'aud.play': '▶ Lire', 'aud.stop': '■ Arrêter',
   'aud.errPttTest': 'Test PTT : ', 'aud.errRecord': 'Enregistrement : ', 'aud.errSave': 'Sauvegarde : ', 'aud.errPlay': 'Lecture : ',

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 = '0.27.2';
+export const APP_VERSION = '0.27.3';
 
 // Author / credits, shown in Help -> About.
 export const APP_AUTHOR = 'F4BPO';

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

@@ -160,6 +160,8 @@ export function CreateDatabase(arg1:string):Promise<void>;
 
 export function DVKCancelRecord():Promise<void>;
 
+export function DVKDelete(arg1:number):Promise<void>;
+
 export function DVKPlay(arg1:number):Promise<void>;
 
 export function DVKPreview(arg1:number):Promise<void>;

frontend/wailsjs/go/main/App.js

@@ -258,6 +258,10 @@ export function DVKCancelRecord() {
   return window['go']['main']['App']['DVKCancelRecord']();
 }
 
+export function DVKDelete(arg1) {
+  return window['go']['main']['App']['DVKDelete'](arg1);
+}
+
 export function DVKPlay(arg1) {
   return window['go']['main']['App']['DVKPlay'](arg1);
 }

internal/kpa/kpa.go

@@ -82,6 +82,7 @@ type Client struct {
 	mu     sync.Mutex // serialises the connection: one question at a time
 	conn   io.ReadWriteCloser
 	rd     *bufio.Reader
+	skipTP bool // ^TP went unanswered once — a KPA500, no ATU; never ask again
 
 	statusMu sync.RWMutex
 	status   Status
@@ -183,6 +184,13 @@ func (c *Client) connectLocked() error {
 		if err != nil {
 			return fmt.Errorf("cannot open %s: %w", c.cfg.ComPort, err)
 		}
+		// The KPA500 is POWER-CONTROLLED by these lines: the Elecraft utility
+		// switches the amplifier on by raising them. Held asserted, once, and
+		// never touched again — reconnect cycles that toggled them were
+		// switching a KPA500 OFF twenty seconds after its operator pressed
+		// nothing but Standby.
+		_ = p.SetDTR(true)
+		_ = p.SetRTS(true)
 		_ = p.SetReadTimeout(ioTimeout)
 		c.conn = p
 	}
@@ -214,7 +222,13 @@ func (c *Client) ask(cmd string) (string, error) {
 	// the frame.
 	line, err := c.rd.ReadString(';')
 	if err != nil {
-		c.dropLocked()
+		// NOT dropped. A command this model simply does not know (^TP is the
+		// KPA1500's ATU — a KPA500 never answers it) is silence, not a dead
+		// link, and dropping here tore the connection down on every slow poll
+		// cycle: two seconds of stalled commands, a reconnect, and a DTR
+		// toggle the amplifier read as the off switch. Nothing arrived, so
+		// nothing is left to desynchronise the next exchange. Write errors —
+		// the genuinely dead link — still drop, above.
 		return "", fmt.Errorf("no answer to %s: %w", cmd, err)
 	}
 	return strings.TrimSpace(line), nil
@@ -364,12 +378,21 @@ func (c *Client) pollOnce(n uint64) {
 			c.statusMu.Unlock()
 		}
 	}
+	if c.skipTP {
+		return
+	}
 	if reply, err := c.ask("^TP;"); err == nil {
 		if v, err := parseInt(reply, "^TP"); err == nil {
 			c.statusMu.Lock()
 			c.status.Tuning = v == 1
 			c.statusMu.Unlock()
 		}
+	} else {
+		// One silence is the model's answer for good: a KPA500 has no ATU and
+		// will never answer ^TP — asking again every cycle cost a two-second
+		// stall each time.
+		c.skipTP = true
+		applog.Printf("kpa: ^TP unanswered — no ATU on this model, not asking again")
 	}
 }
 

telemetry.go

@@ -21,7 +21,7 @@ import (
 
 const (
 	// appVersion is stamped on every heartbeat (and could feed the About box).
-	appVersion = "0.27.2"
+	appVersion = "0.27.3"
 
 	// posthogHost is the PostHog ingestion endpoint. EU cloud by default; change
 	// to https://us.i.posthog.com for a US project.