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Kenwood NXR-710 external PTT not working.


Oct 2, 2020
Hello, im having and issue with audio from a voting selector not triggering the external PTT.

If i key the radio with the Mic PTT the voted audio will transmit.

audio is on pin 9,19 on DB25, but PTT does not activate.

should i be on RA pins 11,12, and not TA pins 9,19.

funtion key for "Take over" is off, no red LED active.

thanks for any input


Lots and lots of watts
Dec 5, 2008
Sonoma, CA
Yes. There is no VOX function in this repeater for automatic transmit. Your voter keying circuit needs to go to pins 16 and 7. TA is correct for transmit audio. RA for receive to your voter channel, however this is filtered audio and some voters struggle with this. Alternative is to use flat receive audio RD but you'll need to re-jigger things to have it work right.