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                           Avionics-List Digest Archive
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                     Total Messages Posted Mon 10/11/04: 1
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Today's Message Index:
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     1. 08:42 PM - VHF Interference by Transponder  (Dave Dykhoff)
 
 
 
________________________________  Message 1  _____________________________________


Time: 08:42:38 PM PST US
From: Dave Dykhoff <davedykhoff@earthlink.net>
Subject: Avionics-List: VHF Interference by Transponder

--> Avionics-List message posted by: Dave Dykhoff <davedykhoff@earthlink.net>

I'm getting serious interference on my VHF (KX-155) anytime my transponder (KX-76)
issues a reply.  If I go to standby on the transponder it solves the problem.
The interference has been happening for a while, but it recently got much
worse; incoming VHF comms are unintelligible anytime the transponder is placed
in reply and is being interrogated.  

I previously had had the comm and transponder antenna coax cables bundled together;
today I physically separated them in the hope that would fix the problem,
but it had no effect.

Thanks,
Dave Dykhoff
RV-8  N1063G