Very neat. Great find you have. I will guess it locked to some celsite. But surprised at what it states its accuracy is.
On Tue, Feb 15, 2011 at 1:18 PM, Arthur Dent <golgarfrinc...@yahoo.com>wrote: > Here is a little more info on the OT-20. > > I connected my OT-20 to a cell antenna and a > 48VDC power supply and let the unit warm up. > I used a terminal emulator set to 9600 8N1 to > talk to the unit. The link below is the response > of the OT-20 to various commands I sent to it. > Press "shift ?" on your terminal emulator to > have the unit send you the list of accepted > commands. > > After warming up and locking to the CDMA signal, > most of the alarm LEDs went out. The one that > stayed on indicated that there was only one > 48VDC supply connected and that is considered > a minor alarm condition. Jumpering the 2 inputs > will eliminate this alarm. The output BNC on my > unit puts out a 10Mhz sine wave. There is also a > DS1620D1 chip in the OT-20 to report the temper- > ature and probably aid in keeping the output closer > to the 10Mhz during periods of holdover > > http://farm6.static.flickr.com/5134/5448082945_13798a2669_b.jpg > > -Arthur > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.