Another one for an avionics whizz!! I have a King KT 96 transponder. The set
has been checked out on the bench and pronounced OK. When powered up it warms
up normally and then the ident and test settings have the usual effect(constant
light). However both on the ground and in the air on "norm" or "alt" the ident
light flashes erratically (but on average about 40 times a minute). Once
airborne ground radars report "no signal" . The aeriel is a brand new rod type
with an 8" ally disc as a ground plane. I have double checked continuity of
the coax screen and of the conductor and checked for shorting between the two.
All appears ok. If the aeriel is diconnected all the flashing ceases. Any
helpful suggestions???
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