KX3 tuning noise on 12M

[Bob Cutter-2]

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
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[MarcV]

I just figure it's the digital equivalent of dirty capacitor plates in the old, analog days.  It's annoying but apparently just the encoding pulses scattering pings into the circuits which find their way to my earbuds.  

Unlike dirty capacitor plates, I can't see where to blow out the dust.  :-)
--
Marc  W8SDG

> On Nov 7, 2015, at 12:28 PM, Bob <[hidden email]> 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:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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[Don Wilhelm-4]

Bob,

Turn to page 40 in the manual and look at the VFO NR menu.  It is a
per-band setting.  Try setting it ON for 12 meters and see if the noise
is cured.

73,
Don W3FPR

On 11/7/2015 12:28 PM, Bob 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.
>
>

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[Bob Cutter-2]

I am old enough to appreciate that and I think I still have a can of RS TV Tuner Spray if can figure out where to aim it.

Thank you all for the good advice and next time I will also dig in the company archives.

Bob

> On Nov 7, 2015, at 12:28 PM, Marc Veeneman <[hidden email]> wrote:
>
> I just figure it's the digital equivalent of dirty capacitor plates in the old, analog days.  It's annoying but apparently just the encoding pulses scattering pings into the circuits which find their way to my earbuds.  
>
> Unlike dirty capacitor plates, I can't see where to blow out the dust.  :-)
> --
> Marc  W8SDG
>
>
>
>
>> On Nov 7, 2015, at 12:28 PM, Bob <[hidden email]> 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:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]

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[Bob N3MNT]

See this app note.
http://www.elecraft.com/manual/KX3%20Tuning%20Noise%20Mod%20rev%20B3.pdf