[time-nuts] HP 5328A Divider / Timebase Output performance

Magnus Danielson magnus at rubidium.dyndns.org
Wed Mar 17 19:53:09 UTC 2010


Bert, VE2ZAZ wrote:
> OK, I am doing a 24-hour ADEV analysis of the HP 5328A Timebase Output when set to divide-by-10,000,000. I use the 10MHz output from an HP 8644A sig.gen. OCXO. I split that 10MHz signal into two; one end goes to the the input of the HP 5328A counter. The other 10MHz end goes to the Stop input of the 5370A. The Start input gets the 5328A Timebase Output PPS. The 5370A is free running. I have included the plot of what I get so far. 
> 
> I would tend to say that the divider is pretty lousy for short term, but it is all fine for longer runs, right? 

Do you have any cycle slips in the measurement series?

You should remove those if they occur before ADEV processing.

You could get better results than those presented from that technology, 
but maybe this mode isn't the best.

If you send me the data offlist I could look at it if you want.

Cheers,
Magnus




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