[Elecraft] K3 sub receiver no signals

[vtdave]

I just finished building the K3 with the sub receiver. All went well until I
fired up the rig and found that I was not getting a signal in the sub
receiver.. I had white noise but no signal. I checked all the wiring that
went from the main board to the sub receiver and all was in place and tight. 

I put another antenna on the aux antenna jack and got normal operation from
the sub receiver! So now I know the sub works but still no signal using the
main antenna. All firmware is updated and initialization went as it should
via the op manual. 

I called Elecraft with the problem and they said it's most likely that the
problem stems from the two sets of pins on the sub module not fully mating
with the small sub in and sub out boards that plug into the main board. They
said this is a common problem when installing the sub module as the fit it
tight (!). 

I re-positioned the sub module after monkeying around with the TMP cables
and made sure all the pins fully mated with the sub in/out boards. I fired
up the rig and my sub receiver worked off the main antenna! 

Before you start tearing the sub receiver apart, make sure those two sets of
pins mate correctly and you may save your self alot of work and agita! 

  73!...Dave



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