[time-nuts] More graphs: OCXO step, holdover recovery

[Lars Walenius]

Thanks for the graphs.

Interesting to see the recovery from holdover on the KS-24361. What was the reason for holdover?

What puzzles me is the large hump upwards in DACvalue. Anyone knows what is the reason? Could it be that the loop changes time constant? Even after the second holdover a small jump is seen.
The downward peaks I guess is from correcting for the drift during holdover. Looks as a normal PI-loop?

Lars

Från: Hal Murray<mailto:hmurray at megapathdsl.net>
Skickat: den 26 april 2016 13:03
Till: time-nuts at febo.com<mailto:time-nuts at febo.com>
Kopia: Hal Murray<mailto:hmurray at megapathdsl.net>
Ämne: [time-nuts] More graphs: OCXO step, holdover recovery


An interesting step in the OCXO
  http://users.megapathdsl.net/~hmurray/time-nuts/HP-5334B-step-2016-Apr-23.pn
g

This is a from second HP5334B that has been running for months so the offset
will be different.


This is KS-24361 recovering from two holdover events of 12 or 13 minutes each:
  http://users.megapathdsl.net/~hmurray/time-nuts/GPSDO/KS-volt-2016-Apr-25.pn
g
  http://users.megapathdsl.net/~hmurray/time-nuts/GPSDO/KS-freq-2016-Apr-25.pn
g


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