[Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade

[rick.ag6ay at gmail.com]

Dale 
Hmm.  I very well could have set Hi = 3.0 and that would set up the scenario
you mentioned. Cool. That should not take long to try.

However, I don't recall an absolute requirement for filter parity between
main and sub rx as the firmware should select the largest available even
when desired BW > filter BW.  I know diversity quality would be impacted if
the filters were not identical but I would not have expected a -freq- shift
like I observed.  

OK I just tried WWV with Lo = 0.00 and Hi = 3.0 on A and B VFO (using BSET).

I am in USB Diversity mode tuned to WWV 10.000 MHz.
WWV sounds fine
XFIL = FL2 (6 kHz) <-- yep. this is expected.
I hit BSET
XFIL = FL3 (2.8 kHz) <-- Actually this is what I expected since this is the
widest filter on RX B

where
Main: 1=15k, 2=6k,  3=2.8k, 4=2.1k, 5=0.4k 
Sub: 1=0.0, 2=0.0, 3=2.8k, 4=2.1k, 5=0.4k 

... and no mysterious frequency shift.


I still can't figure out where the 1.5 kHz shift came from but I'm grateful
it is gone!

Rick AG6AY





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