[Elecraft] K3 VFO tuning noise

[Jussi Eloranta]

On 12/18/2012 12:11 PM, Bill Clarke wrote:
> So - I got curious and tested my rig for the "noise" on ten meters. It 
> is so faint that I had to use phones to be sure it was actually there. 
> I agree with Phil, this will never bother me. Perhaps this varies from 
> one rig to another?
On mine I can definitely hear it even with the band noise present (I 
always use phones and work with fairly weak signals lurking in the noise).
When browsing the band quickly, it is possible to miss a weak station 
because of this. I have a "decent" antenna hooked up to it - an inverted 
V, which
is abt 50 feet up from the center, so there is significant band noise 
present. I have the preamp on pretty much at all times on 10m.

I wonder if there are some factors in the assembly process that could 
affect this (routing of cables etc.) ?
I think I have also noticed that the amplitude of the tuning noise 
varies (not related to the noise level of the band) but
I still have to verify this observation (this could still be my 
imagination).

As for the question about the RF gain - I probably need to calibrate RF 
gain again. It would be great to know
how it got messed up - it could have been from the very beginning - I 
might have just missed it.

Jussi (AA6KJ)