[time-nuts] Switching oscillators

Bob Camp lists at rtty.us
Sun Dec 9 23:16:15 UTC 2012


Not real straightforward to do in the "cheap / easy" realm.


On Dec 9, 2012, at 6:08 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> On 12/09/2012 11:31 PM, Bob Camp wrote:
>> Hi
>> I think the idea is to run the TCXO while the OCXO is>  1 ppm off frequency and then switch to the OCXO when it's sure to be OK. Most inexpensive approaches to locking the TCXO will give you a pretty major frequency transient. Depending on what you are doing, that may muck things up as much as a dropout.
> Which is why I proposed the "gentle" lock-in.
> Cheers,
> Magnus
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