Airline Pilot Central Forums - Bose A20 Interference in 737

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Or not sealing around your ears properly. If your wearing glasses, this might cause this also

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Quote:

Originally Posted by BlueSkies (Post 2522401)

Ahh thanks. I was also considering the UFly, but maybe not if it has the same problem. Has anyone noticed ANR interference with the David Clark ANR headsets?

Oscillating hum is a good way to describe it. I will try your method on my next trip. So basically you are keeping the battery pack as far away from the window heat as possible? Thanks for the tip.

I have the David Clark headsets and sometimes notice this as well. If I get the battery pack too close to a heated window or if I even touch the window with my hand I'll get some minor interference.

Agree with the other posters... just try to secure the battery pack away from the heated window. I clip mine to the vertical bar above the rearmost window with a big paper clamp.

Looking at the A20 for 7ER.

Would it have similar issues due to Boeing-isms or is this solely a Guppyism.

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Quote:

Originally Posted by Aggie94 (Post 2523829)

Thanks, will try that the next time I fly.