I bought a used TM-261A on ebay recently. When I got it I was excited because it was in very good condition cosmetically. The problem is that it will not transmit. The receive is very good but when I hit PTT I get a hum coming through the radio and no transmit. The buyer has agreed to take a return since it was listed as working condition but I was wondering if there was a way to figure out if it is the microphone before I sent it back.
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Kenwood TM-261A - Problem on TX; hum but no transmit
- Thread starter Onthecoast
- Start date
You don't need to put another mic on it, just short the pins that key it up and if you see if its transmitting, if it is, then I would toss another mic on it and try it out... If it wont transmit when you short the pins I'd send it back.....
OK I shorted it out and it transmitted on L and M power but just a hum on H power. I'm assuming that is due to something being screwed up in the amplifier and or the finals or whatnot. I hooked the mic back up and it looks like it is able to transmit on L and M with the mic installed so I am not sure what is up with that. I don't remember it doing that last time. Not sure where to go from here.
