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Noise in headset from Map496

 
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rv6awingman(at)gmail.com
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PostPosted: Tue Dec 07, 2010 2:21 pm    Post subject: Noise in headset from Map496 Reply with quote

I am trying to track down some noise in my headset that near as I can tell is generated by my MAP496 with weather. �When I turn the GPS off, the noise is gone. �The noise is a�rhythmic�sort of hiss in the head set, approx every second. �It appears with engine on or engine off. �It is masked when flying by the other noise in the cockpit, but it is�noticeable. �The noise might be generated by the active weather antenna, but as my unit is panel mounted and powered from the buss so pulling the antenna is not the easiest chore. �I can't find a way to turn the weather off, and deactivate that antenna to see if that is the source while the GPS is turned on. �The GPS and Weather antennas are mounted close to each other, on the glare shield in front of the co-pilot and above to the Garmin GMA340 audio panel. Anyone have some experience with this or other ideas?

Marty RV-6A
N826ME

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