[time-nuts] Man with too many clocks.

Dr. David Kirkby (Kirkby Microwave Ltd) drkirkby at kirkbymicrowave.co.uk
Mon Nov 7 03:52:09 EST 2016

On 4 Nov 2016 17:48, "Bob Camp" <kb8tq at n1k.org> wrote:
> Hi
> The only practical way to set the 10811 or 10544 is with a >= 10 turn pot
on the EFC. I
> never have worked out just why there are so many instruments that don’t
have a pot on
> the EFC.
> Bob

I'm amazed my 18 GHz HP 5342A counter has no pot. IIRC the standard TCXO
does, but the counter drifts a lot with that.  After fitting the optional
10811A OCXO, I discovered it is almost impossible to set the frequency from
the mechanical control. I guess I should modify the counter and add a
control. It really is odd that there's no such facility.

That said,  the difference in value between this old counter and the newer
microwave counters like the 5351B has fallen.  The newer ones are much more
sensitive too.


More information about the time-nuts mailing list