Snap, Crackle, Pop in new Radio.
I've read all the "alternator noise" threads and my symptoms are different from the typical "whine/hum". Removed the GNC420 which was quiet and replaced with a GTN650. I now have an intermittent breaking of squelch which increases in frequency with more electrical load. Alternator is a new ND 70 amp, internally regulated. I can adjust the squelch on the radio, but this really is just masking the issue. I don't know what the GNC had for a squelch adjustment, so this may be why it was so quiet - maybe the prior owner had it turned way down.
So any ideas on a random break of squelch occurring every 15-30 seconds or so (Duration is just a split second)?
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
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Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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Linear Mode
