I think the lowest cost GPSDO frequency reference has to be one made from these parts. You can get up and running for under $50. 1) the UT+ 2) a patch antenna 2) the Lars Walenius Arduino based controller, using the $3 version of the Arduino 3) An eBay OCXO for about $20. (this is the most expensive part)
I built the above and at every decision point did what was both simplest and lowest cost. I just wanted to see what would happen. I ran it for a few months. I kept the output of this and the output from a Thunderbolt on each channel of my dual channel scope. Visually they kept in phase. One would drift right of left then be corrected. I could not see it drift, I'd have to come back and check now and then. Yes I know not a good characterization but in keeping with the "simplest thing that can still work" idea. On Mon, May 4, 2015 at 5:19 PM, Bob Fleming <[email protected]> wrote: > > _______________________________________________ > 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. -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
