feat: added record qso dvk

internal/cat/omnirig.go

@@ -319,6 +319,43 @@ func (o *OmniRig) SetMode(mode string) error {
 	return nil
 }
 
+// SetPTT keys or unkeys the rig via OmniRig's SetTx(PM_RX|PM_TX). Used by the
+// Digital Voice Keyer to put the rig into TX while a voice message plays.
+func (o *OmniRig) SetPTT(on bool) error {
+	if o.rig == nil {
+		debugLog.Printf("OmniRig.SetPTT(%v): NOT CONNECTED", on)
+		return fmt.Errorf("not connected")
+	}
+	status, statusStr, writeable := int64(-1), "", int64(-1)
+	if v, err := oleutil.GetProperty(o.rig, "Status"); err == nil {
+		status = v.Val
+	}
+	if v, err := oleutil.GetProperty(o.rig, "StatusStr"); err == nil {
+		statusStr = v.ToString()
+	}
+	if v, err := oleutil.GetProperty(o.rig, "WriteableParams"); err == nil {
+		writeable = v.Val
+	}
+	txWriteable := writeable != -1 && writeable&pmTX != 0
+	param, name := pmRX, "PM_RX"
+	if on {
+		param, name = pmTX, "PM_TX"
+	}
+	debugLog.Printf("OmniRig.SetPTT(%v): status=%d(%s) writeableParams=0x%X PM_TX-writeable=%v → Tx=%s",
+		on, status, statusStr, writeable, txWriteable, name)
+	if on && !txWriteable {
+		debugLog.Printf("OmniRig.SetPTT: ⚠ this rig's OmniRig .ini does NOT expose TX keying (PM_TX not writeable). " +
+			"Use VOX or serial RTS/DTR PTT instead.")
+	}
+	// OmniRig has NO SetTx method (that returns "unknown name"); the Tx
+	// parameter is set via the writeable Tx PROPERTY (PM_TX / PM_RX).
+	if _, err := oleutil.PutProperty(o.rig, "Tx", int32(param)); err != nil {
+		debugLog.Printf("OmniRig.SetPTT error: %v", err)
+		return fmt.Errorf("set Tx=%s: %w", name, err)
+	}
+	return nil
+}
+
 // ===== OmniRig enum decoders =====
 
 // Bit flags from OmniRig type library (RigParamX enum in OmniRig_TLB.pas).
@@ -328,6 +365,8 @@ func (o *OmniRig) SetMode(mode string) error {
 // too low which causes every mode to map to the slot below it (AM → DIG_L,
 // FT8 → SSB_L, etc.).
 const (
+	pmRX   int64 = 1 << 20 // 0x00100000 — PM_RX (receive)
+	pmTX   int64 = 1 << 21 // 0x00200000 — PM_TX (transmit / PTT on)
 	pmCWU  int64 = 1 << 23 // 0x00800000
 	pmCWL  int64 = 1 << 24 // 0x01000000
 	pmSSBU int64 = 1 << 25 // 0x02000000