markmn Posted February 9, 2011 Report Share Posted February 9, 2011 This is on my P2008. It did not do this when I first got it. Then one day when I keyed the mic... whoa, what is that? Very loud and annoying. I adjusted the side tone down and that lowered the noise volume in my headset but did not fix anything. It also seems like I hear more of a whine when decending with no power dring landings. Maybe always was that way? The guy that did the avionics has no idea other than the sidetone setting in the SL30. I know he put some noise suppressors in the harness but he was sure this was not the problem said they would not quit working. The plane has an 40 amp external alternator. Any Ideas? What noise do you ct owners get thru your headsets? What is resonable? Mark Link to comment Share on other sites More sharing options...
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