Ah. Right you are, Sir.
I checked my 'hardware' section of my aircraft's documentation, and see that I was thinking of this: "Dummies Guide to Aircraft Antennas" hosted at Cumulus-Soaring.
https://www.cumulus-soaring.com/xcom...es%20Guide.pdf

Lots of good info for me in there, including that bit about the antenna being connected (and in reasonable tune) prior to depressing the PTT. Don't know why he had to call me a 'dummy,' though. :-)
~Travis



On Saturday, April 26, 2014 9:48:57 AM UTC-7, RMM wrote:
Thanks Travis..

Antenna was always connected when we had the unit powered up. So no chance of the PTT being depressed without the antenna being connected. I did not see that warning in my reading of the manual though. We did attach a new connector on the antenna cable at the radio end. But the ground at the connector was checked before attempting the use the radio. The antenna receives fine, as mentioned. So that does not seem to be the issue. Your response is much appreciated. Thanks

RMM



On Sunday, April 27, 2014 2:22:53 AM UTC+10, TravisBrown73 wrote:

I don't know a lot about radios, at all, but my 4201 manual stated clearly that the transmit button should not be depressed if the antenna wasn't connected. Something about burning out the 'transmit amplifier' or something similar-sounding. Could that have been done? That statement was recently affirmed through a discussion with a fellow pilot in our club that had done just that on accident. He had to send it back to the factory for repair.



~Travis