[LarryT]

My RV-6A has a FlightCom 403 intercom. When the intercom is switched to "isolate," I get a crystal clear side tone when I transmit or receive. When the intercom is in the "ICS" position the side tone sounds "fuzzy."

I should mention that I do not have the co-pilot headset plugged in at all.

Do any of you electronics gurus have suggestions for how to trouble shoot this issue?

Thanks,

Larry Tompkins
544WB -6A
W52 Battle Ground, WA

 

[az_gila]

Do you have any unused wires in the harness that could be for a 4-place installation?

 

[LarryT]

I will check

Gil,
I am not the builder, so I will have to check.

Larry