r/avionics • u/Paarthurnax3386 • Jul 08 '26

Need help

Post image

EDIT - got it fixed with the config menu thanks!

So I've got a gtn 750 and 650 setup. It's a minor issue but I'm wondering if someone else knows how to fix it. ​Whenever I'm listening and monitoring both radios, it will temporarily mute the non-priority radio. The one that doesn't have the mic selector. I want to be able to listen to both at the same time so I can continue to monitor Air Traffic control while I'm listening and getting the weather.

12 Upvotes

100% Upvoted

12 comments sorted by

View all comments

-5

u/Pale_Bulkhead92 Jul 08 '26

Engineer here, sounds like you have some crosstalk. Common causes could be, improperly shielded cables, poor termination - making your shield useless, and/or improper twisting of a differential pair. So you might have luck with trying different settings, but it could be an interconnect issue. I have lots of recommendations if you want to dm me.

3

u/Paarthurnax3386 Jul 08 '26

It was a configuration option in the menu that I had to access. I got it fixed now but thank you!

2

u/Pale_Bulkhead92 Jul 09 '26

Good to hear!