[TenTec] RF in audio

[psikes@whidbey.net]

Hello to the group. It's been a while since I have had any questions 
but I have recently had a problem on 40M SSB. I am getting some 
RF into my audio only on 40 SSB. I have tried other rigs and do not 
have the problem on the same antenna. I have 2 loops that work on 
40, one vertical loop that is resonant on 40 and a 80M vertical loop 
that works as a bisquare on 40. This happens with either antenna 
and the Omni VI+ but not my other rig (FT1000MP). I am sure that 
it is a ground problem but have not been able to isolate it. I pulled 
the antenna tuner (Drake MN-2700) out of the circuit, it was after 
the rig but before the amp (SB-221) and it did seem to improve a 
little. The RF is there whether the amp is on or not so it is not 
strictly a high power problem. I have tried different mikes and seen 
little or no improvement. Any ideas out there in Ten Tec land??

73 - Phil
N7UX

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