Ok... a little while back I remember reading a few posts about squelch breaking through on your GTN units. I hadn't seen the issue and I thought I was immune to it, Well that changed today. I took a trip to upstate New York to take my mother-in-law home after a visit. Okay before this goes too far, she made it home fine, although I was tempted a few times to figure out that you really could open a Mooney door in flight. And for those of you wondering, her broom was in the shop for its annual, so she had to suffer through riding home in a Mooney.
Back to the topic. There were a number of approach and center controller frequencies that worked me. Some of the frequencies were fine, but others I was hearing nothing but a loud squelch noise coming through. Most of the time when the controller spoke it was understandable but I did need to listen through the squelch. On a few other frequencies, everything was clear and no evidence of an open squelch. I tried to make sense of the frequencies. I don't think I had issues in the 13X bands but did on the 12X ones.
What have others experienced? Makes me sick to think is that I paid a lot for this expensive box and I am subject to these issues...