feat: While using Flex & Steppir or Ultrabeam can prevent transmit when antenna is moving

internal/cat/flex.go

@@ -109,6 +109,7 @@ type flexTX struct {
 	tunePower    int
 	tune         bool
 	transmitting bool // interlock state == TRANSMITTING
+	inhibit      bool // transmit inhibited (e.g. while a motorized antenna moves)
 	voxEnable    bool
 	voxLevel     int
 	voxDelay     int
@@ -1708,6 +1709,14 @@ func (f *Flex) SetTune(on bool) error {
 	return f.txSet(cmd, "tune", func(t *flexTX) { t.tune = on })
 }
 
+// SetTXInhibit blocks (on=true) or allows transmission at the radio. Used to keep
+// the operator from keying while a motorized antenna's elements are moving —
+// SmartSDR refuses to transmit while inhibit is set, so it holds even against a
+// footswitch or an external keyer, which a software PTT block could not.
+func (f *Flex) SetTXInhibit(on bool) error {
+	return f.txSet("transmit set inhibit="+boolFlex(on), "inhibit", func(t *flexTX) { t.inhibit = on })
+}
+
 func (f *Flex) SetVOX(on bool) error {
 	return f.txSet("transmit set vox_enable="+boolFlex(on), "vox_enable", func(t *flexTX) { t.voxEnable = on })
 }