Tom, That's a pretty interesting idea. It makes me wonder if it would be worth it to switch perhaps a 1/2W heat source (random number) off and on over the XO in the UT+ say every minute or so.
Bob >________________________________ > From: Tom Van Baak <[email protected]> >To: Discussion of precise time and frequency measurement <[email protected]> >Sent: Monday, March 3, 2014 6:40 PM >Subject: Re: [time-nuts] Another "atomic" clock question > > >Sure. In fact you can loosely phase lock it to GPS that way. Your xtal doesn't >need to have an EFC pin. You are using external temperature as a replacement >for EFC. Call it TFC (temperature frequency control) instead. You can't get >much simpler than that. Make sure to use a plain XO (not a TCXO or OCXO). > >I used a resistor heater to bust hanging-bridges: >http://leapsecond.com/pages/vp/heater.htm > >/tvb > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
