It's very common that if you have a poor connection in the antenna system -- dirty or oxidized pin in a coax connector, for example, or a poorly soldered connection in a balun -- then hitting it with a little RF will temporarily 'fix' it.

On 3/31/13 7:34 PM, Jim - W6VAR wrote:
I haven't used my KX3 much since getting it last year, but I brought it to my
in-laws for Easter and hooked up my Pac-12 antenna. On 40 meters, I've been
getting a strange popping in the signal level. I've also noticed that the
signal drops from about an S5 and strong background noise in the audio to
becomming very subdued and S1 or less. If I hit the TUNE button momentarily
to transmit, the signal goes back up once the radio goes back to receive.

Any thoughts?

Jim - W6VAR


--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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