[Elecraft] Strange behavior when tuning around with SUB receiver LINKED

[KC2UEE]

Another thing I noticed that when near the 5Mhz band, other knobs like the
filter knobs will also induce this motorboat noise when turned.  Any
suggestions on how to fix?

73,
James KC2UEE



> Also, and possibly another more concerning issue is that when the sub
> receiver is on, and I'm tuning anywhere from 4.9 to 5.9MHz, there is a
> loud
> motorboat or zipper noise that is heard through the speaker, and is
> affected
> by spinning either VFO A or VFO B knob.  The noise stops if you don't turn
> any VFO.  Turn any VFO knob though, and the motorboat zipper noise
> resumes.
> If you turn off the sub receiver and spin any VFO knob, this "zipper-like"
> or motorboat noise almost goes away.  It is still there, but now very
> faint
> and can barely be heard over the static.  
> 
>  
> 
> 73,
> 
> James KC2UEE
> 

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