At 4/24/2009 12:04, you wrote: >Is there a simple way to have the G3 Tone board stop sending >the tone as soon as the reciever input is droped.
I assume you mean the Mastr II mobile CG board. Normally it only encodes when a valid tone is being received, though it does ring a bit otherwise. This ringing can intermittently open decoders on RXs that are receiving the TX. If that is what you want to fix, you need some sort of audio gate on the CTCSS output to block this ringing when no tone is being decoded. Some use a reed relay; a FET or 4066 switch will work as well. Bob NO6B
