[Elecraft] Strange Sub Receiver Problem - I must be on Ant 2 in order to receive

[Richard Thorne]

I was trying to use the sub receiver today while chasing T32C.  I 
finally realized that I was not receiving on my sub receiver.

I only have one antenna and that is connected to antenna 1.

The only way I can receive a signal on the sub receiver is if I select 
ant 2, but then I lose all signals on the main receiver.

In the configuration menu I have the KRX3 set to Ant=Atu.

Any ideas what may be going on here.

Thanks

Rich - N5ZC