[Elecraft] Suggestions for 10 MHz Signal Source for the K3?

[Chip Stratton]

I dont know how much accuracy you need, but if no more than 1 ppm or
so, find a Leader 823s frequency counter (S model is 1 ppm) cheap on
ebay. Its internal clock is 10 mHz and it will put that signal out via
a back panel BNC. You can zero beat it to WWV first to get it within a
few Hertz or better.  Mine holds to much better than .5 ppm.

Other counters may have the same, I dont kniw, but this works for me.

On Monday, June 20, 2011, David and Dianne on Comcast
<dhhdeh at comcast.net> wrote:
> Hi Everyone,
>
> I am considering a K3EXREF just for fun, no other
> reason.
>
> Looking for suggestions for a reasonably priced 10
> MHz external signal source.
>
> Can anyone offer some suggestions? GPSDO? OCXO?
> Rubidium Standard?
>
> I have seen some used Trimble Thunderbolt GPSDO's
> on eBay form China. I'm just not sure about the
> wisdom of ordering any of these units.
>
> Suggestions would be appreciated on or off the list.
>
> 73 de N1LQ-Dave
>
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