[time-nuts] DIY GPS-DO

2012-03-10 Thread Filip Ozimek
Hello, could you recommend me a good project of GPS-DO? I've got a GPS module with 1PPS output and a 20 MHz VCXO. As I understand to do a phaselock to 1 PPS signal one must build some kind of digital PLL. But I'm not sure how to calculate a correction signal to the VCXO and how to test such a

Re: [time-nuts] DIY GPS-DO

2012-03-10 Thread Filip Ozimek
It's an old novatel SUPERSTAR II. Filip. Dnia 10 marca 2012 14:14 Bob Camp li...@rtty.us napisaƂ(a): Hi Which module do you have? Bob On Mar 10, 2012, at 8:07 AM, Filip Ozimek me_su...@o2.pl wrote: Hello, could you recommend me a good project of GPS-DO? I've got

[time-nuts] AVAR for

2010-06-20 Thread Filip Ozimek
Hi, I'm trying to compare a various methods of time and frequency comparision: GPS common-view, GPS carrier-phase and GPS TWSTT. Does anyone know what is the floor level for these methods in AVAR? Filip. ___ time-nuts mailing list --

Re: [time-nuts] AVAR calculation

2010-01-11 Thread Filip Ozimek
Tom Van Baak pisze: Hi Filip, See attached. Let me know how your results differ from this. It looks like 1.75 hours of frequency data of a 250 MHz DUT. You first convert your raw frequency measurement data into normalized frequency error data (i.e., subtract and divide by f0 = ~250 009 770

[time-nuts] AVAR calculation

2010-01-10 Thread Filip Ozimek
. Thanks, Filip Ozimek ___ 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.