[Elecraft] New Synth Question...

[Eric Swartz - WA6HHQ, Elecraft]

I believe the small 1/4 Hz steps are a normal result of maintaining lock of the 
KSYN3a to the K3 Reference Oscillator.

73,
Eric
elecraft.com

On 4/22/2015 4:35 PM, Mark Bayern wrote:
> Check Elecraft's website for the latest mod. The frequency shift it
> describes might be what you're observing. The good news? There is an
> easy fix.
>
>  From the application note:
>
> "The K3EXREF option allows the K3 to be closely locked to an external
> 10-MHz reference. Some K3 owners reported a pe"riodic frequency jump
> of up to 40 Hz on 2 meters (using the K3’s K144XV module with PLL lock
> option) when the K3EXREF board was added. We found that the K3EXREF
> was causing a shift in the 49.380-MHz reference oscillator frequency.
> This can be fixed with a simple modification to the KREF3 module.
>
> Mark  AD5SS
>
>
>
>
> On Wed, Apr 22, 2015 at 2:47 PM, David Cole <dave at nk7z.net> wrote:
>> Hello,
>>
>> I have the new SYNTHs installed, and all is working as it seems it
>> should.  As soon as I installed the nnew Synthys, I saw a sawtooth
>> waveform when looking at very small frequency corrections.  On the order
>> of about 1/4 HZ. steps, then a correction, then another 1/4 HZ step,
>> etc.
>>
>> If I were to get the frequency standard for the K3, will that reduce the
>> step size?
>>
> ______________________________________________________________
> 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 elist_copy at elecraft.com