[Elecraft] K3(s) main oscillator calibration

[W2xj]

the problem with WWV is doppler shift. 

Sent from my iPad

> On Jun 6, 2020, at 5:27 PM, w4sc <w4sc at windstream.net> wrote:
> 
> I like the zero beat WWV method.  Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment!  If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better,  
> 
> Using a frequency counter I would think  0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect.
> 
> Ben W4SC
> 
> 
> Sent from Mail for Windows 10
> 
> ______________________________________________________________
> 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 w2xj at w2xj.net 
>