[time-nuts] How are non-Trimble oscillators disciplined?

Chris Albertson albertson.chris at gmail.com
Mon Oct 1 00:55:24 UTC 2012


> I would like to experiment with some other OCXO's, but am not sure about how they might be disciplined.

Almost all of them have just a just pins on their connector, ground,
power (one or two voltages) and "control" with is a variable voltage
to apply and the ooutput frequency varies over a small range that is
proportional to the input voltage.   The exact ratio of Hz/V is device
dependance.

Typically to "discipline" an OCXO you use a DAC to drive the control
voltages.  You would use a micro controller to look at some kind of
phase detector and adjust the DAC.

The T-Bolt is nice because all this is done for you in a low cost self
contained unit.  But you don't learn much that way, except how to
connect cables.


Chris Albertson
Redondo Beach, California



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