Sometimes it sounds great, other times sounds like, well, not so great, borderline unreadable. Unit seems to get really warm but just did a theee hour flight with it feeling " hot ' sounded fine the whole time. Today in pattern sounded horrible. The send if off program for 5 -600 bucks sounds like allot. Thought it might be at high power settings, but disproved that today as well. Seems to always sound good on the ground taxiing out. Thoughts?