Among Simple , analog, 1PPS
you'll have to pick two of the three.
The miller GPSDO needs 10KHz it's simple and
analog. http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm
The IK0OTG is simple, uses 1PPS and is digital
http://www.ik0otg.net/index.php?option=com_content&view=article&id=53%3Aoscillatore-10mhz-sinc-gps&catid=34%3Ahome-made&Itemid=59&lang=en
At 10:41 AM 5/22/2016, Bernd Neubig wrote:
Hello Fellow time-nuts,
I am looking for a simple solution to discipline my 10 MHz reference
OCXO in my private lab with an 1 PPS signal from a separate GPS receiver.
I am curious if there is a solution possible without programming a
microcontroller, as I am an old-fashioned "analogue" guy ;)
I am well aware, that such a solution would have a lot of
disadvantages, as it cannot effectively compensate for short-term
variations. However I would be happy if such a KISS solution could
achieve a stability (STS) of better 1E-10 over an hour. I know this
is a damned long integration time for an analogue integrator...
If that sounds too weird, I am open to receive advises for a
microcontroller based solution.
Thanks a lot for your comments to come.
BTW: you need not to teach me about basics of short-term stability.
I just want to evaluate the limits of a possible analogue solution.
For sure, that's not real disciplining, but more like a long-tau
integration PLL
Best regards
Bernd DK1AG
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