Ray Bengen wrote:
: What can make my xponder only give out mode-a and only mode-c intermittenly.

: Thanx in advance.

: Ray

Mode-A all the time and Mode-C intermittently? Almost certainly the encoder
or wiring. There can be some diode voodoo required in the harness for some
encoder/transponder combinations with other equipment. Is there anything else
connected to the encoder (e.g. IFR GPS, etc)?

Could be the usual bad wiring/connection corrosion, etc. Slightly possible of
flakey encoder too.

-Cory


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