[time-nuts] MT3339 PA6H and Racal Dana GPIB, update

Bob Camp lists at rtty.us
Thu Dec 13 01:30:28 UTC 2012


Hi

That approach works well. If you have them about a half second apart I'd stick with that setup.

Bob

On Dec 12, 2012, at 7:25 PM, Fabio Eboli <FabioEb at quipo.it> wrote:

> Thanks Bob, the next logging session will
> be setup as per your suggestion.
> 
> Now I'm logging with the counter
> in time interval, Rb 1 is the start,
> GPS is the stop and Rb2 is the ext
> reference. The pulses are 670mS apart now.
> 
> Fabio.
> 
> Bob Camp <lists at rtty.us> ha scritto:
> 
>> Hi
>> 
>> Yes, I would run the FE5680 into the counter's frequency standard input.
> 
>> 
>> For the "real data", you can set up the counter to start on the GPS pps and
>> stop on the 10 MHz output from the FE5680. You will only have 100 ns of
>> range. You can unscramble the data after the fact. If you don't want to
>> unscramble things, divide the 10 MHz down to 100 Hz and put that into the
>> stop channel.
>> 
>> Lots of fun.
>> 
>> Bob
> 
> 
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