Re: K2 BFO Drift / Filter Alignment

Posted by K1FFX on Jan 05, 2011; 9:23pm
URL: http://elecraft.85.s1.nabble.com/K2-BFO-Drift-Filter-Alignment-tp4236424p5893630.html

Hi, Don -

Thanks for the hint.  Yes ... the "shift when press" symptom is definitely,
now I see, due to bottom panel interaction.    I believe the bottom panel
is under stress from force exerted by the tilt stand (which I had a heck
of a time installing back when I built the K2).  I will look into this further ...
maybe if I can resolve the "shift when press" symptom, the apparent
"shift by itself" symptom will also be solved.

Thanks!

- Bruce

Don Wilhelm-4 wrote

  Bruce,

The K2 BFO will shift slightly if the bottom cover is deformed, but that
does not happen under normal conditions.  Check to see if your K2 is
sitting on its feet properly.  If you have something under the K2 or
have it on an uneven surface, it may be deforming the bottom cover
slightly when you press on the top.

73,
Don W3FPR

On 1/5/2011 3:32 PM, K1FFX wrote:
> I'm wondering if there was any resolution to this problem, first posted just
> over a year ago,
> since I observe what I think is the identical problem with my K2 S/N 6982.
> A related
> symptom was obvious BFO shift when pressing down on the top cover just
> behind the
> A=B push button