[time-nuts] Brand new OCXO/TCXO reccomenations

[Hal Murray]

> I'm starting to play with a short-term 1PPS holdover application, mainly to
> cover up brief GPS signal loss events (a few minutes at most). 

> I'm probably looking for an OCXO instead of a TCXO, although it looks like
> some of the best TCXO's out there are in the range which will work in most
> cases (50ppb over temperature (or better)).

How much can the temperature change in a few minutes?

> I suspect I'm going to handle the holdover in a FPGA.  As such, I don't think
> I'm going to bother trying to voltage control the oscillator

How much could you improve the holdover if you monitored the temperature?


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