[Elecraft] KX3 tuning noise on 12M

[Walter Underwood]

This is the internal encoder signal being picked up by the very sensitive receiver.

Look up the VFO NR menu option. It should be on page 42 of your KX3 manual. You can turn that ON per-band to reduce the noise.

Also see the “Tuning Noise Suppression Modification” app note on this page: http://www.elecraft.com/KX3/kx3_app_notes.htm

"Factory assembled KX3s from serial number 4668 up, and kits from serial number 4753 up that include the KXFL3 option have been shipped with the updated board.”

Details on the mod: http://www.elecraft.com/manual/KX3%20Tuning%20Noise%20Mod%20rev%20B3.pdf

wunder
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Nov 7, 2015, at 9:28 AM, Bob <ki0gqrp at gmail.com> wrote:
> 
> I did not find a thread on this. 
> 
> I note a low level rasping sound when moving the VFO on 12M only. Stops when you stop turning. 
> 
> 72, Bob KIØG
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to wunder at wunderwood.org