[Elecraft] K2 XFIL Oddity

[Vic Rosenthal]

Joe P wrote:
> I've noticed that as I switch between the different XFIL settings on my 
> K2 (#3490), the pitch of the received signal seems to change sometimes. 

<snip>

> It's really a minor thing but it seems a little odd. Is it normal?  Is 
> there something I can do to improve the situation?

It's normal.  It has to do with the number of bits in the DAC or 
something.  To fix it, change the width of the setting that is off a bit 
and readjust the BFO.  For example if your 1.5 KHz filter is 10 Hz 
higher than the others, make it 1.52 KHz and move the BFO up one click. 
  When it recalibrates it should come out spot on.

Vic K2VCO