Re: K3EXREF and Trimble Thunderbolts
Posted by
Don Wilhelm-4 on
Apr 05, 2011; 7:28pm
URL: http://elecraft.85.s1.nabble.com/K3EXREF-and-Trimble-Thunderbolts-tp6242158p6243539.html
James,
For most HF operating, a calibrated K3 is about as "right on" as many
commercial broadcast stations (even with the normal TCXO), so I don't
think it is a great advantage (unless you are a real purist for
frequency accuracy).
That is for normal HF operating, but the picture changes when one
considers a few of the newer digital modes which are quite demanding
about frequency accuracy, and also for those who are VHF/UHF advocates
and are doing stuff like moonbounce.
So for many it is "nice to have", but there are a select few who
actually need it.
73,
Don W3FPR
On 4/5/2011 3:11 PM, James Sarte (K2QI) wrote:
> Hello group,
>
> It's been many months since I've posted here, much less actually done
> something new with my K3. This topic has however piqued my interest.
> Just so I understand fully, am I right in assuming then that the
> following is correct:
>
> 1. Any reference oscillator operating at 10 MHz would work with the K3XREF?
> 2. All that's needed for this to work is the K3XREF, updated
> firmware, an accurate 10 MHz clock/oscillator, and a BNC cable?
> 3. Trimble Thunderbolt seems to be a good, cheap product to try. Any
> others that are> $100?
>
> What are the additional advantages of doing this other than knowing
> you've pretty much eliminated any frequency drift?
>
> 73 de James K2QI
> President UNARC/4U1UN
>
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