[time-nuts] Buffering the 1pps output from a Z3801A
John Ackermann N8UR
jra at febo.com
Wed Mar 26 13:31:57 EDT 2008
Here's how I added 1 pps and 10 MHz TTL outputs to my Z3801A:
http://www.febo.com/time-freq/gps/z3801a/mods/index.html
John
----
Peter Vince said the following on 03/26/2008 09:29 AM:
> Bruce, et al,
>
> The 1pps output of an HP Z3801A and Trimble Thunderbolt is
> only available (as far as I know) as a balanced ECL signal on the
> 25-pin connector, with dire warnings in the manuals about not
> earthing either side of the ECL signals. Would you be able to advise
> on a simple buffer circuit that would allow me to drive the usual
> unbalanced 50-ohm coax please?
>
> Thanks,
>
> Peter Vince (London, England)
>
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