[Elecraft] K3: Shift/Width encoder pulse noise?

James Sarte k2qi.nyc at gmail.com
Sat Dec 5 23:18:29 EST 2009


Greetings reflector fans,

I noticed something odd tonight with my K3; something I've never noticed
before.  I decided to do some SWL'ing around 40m and test out the relatively
new Sync-AM feature.  All works well but whenever I turn the filter shift or
width knobs now, I get a fairly loud encoder pulse noise.  This is similar
to the VFO encoder hash on 5 MHz that I used to get prior to the
hardware/software mod implementation.  This enoder pulse/hash sounds loudest
when the received signal is strongest, or when using an antenna jack that
has an antenna connected.  I can't seem to replicate the problem on 20m.
Also, when switching over to the sub receiver, rotating the width/shift
knobs don't have an effect unless I enter the B-set menu.

The noise seems to be present in all modes (AM, CW, Data, USB, and LSB).

This is with the latest beta firmware; 3.63.  I've just reverted back to
3.42 to see if there's a change, and there isn't (perhaps the hash isn't as
loud, but it's still there).

I recently replaced my FP due to my original FP's encoders going bad.  I
have a new FP that I replaced myself.  The encoders used in the new FP
have a stiffer resistance to turning and don't have the detent feel any
more.  I'm not sure if something could have happened when I replaced the
panel, but I doubt it as everything else seems to work FB.

Anyway, just thought I'd toss this out there.  Anyone have any suggestions?
Anyone notice anything similar?

-- 
73 de James K2QI


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