[Elecraft] Frequency Not Synced for Diversity Receive

[KY7M]

I am setting up diversity receive using the AUX input for my receiving loop.
After holding the SUB button to turn on DIVERSITY, the speaker output is
obviously off between MAIN and SUB by a hundred Hz or more.  I can hear the
same signal on the other speaker most of the time, but the tone is quite
different.  I installed a pair of new synthesizer boards several months ago
and all else seems to be working properly.  Any suggestions?

 

Lee, KY7M