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
It's an old novatel SUPERSTAR II.
Filip.
Dnia 10 marca 2012 14:14 Bob Camp li...@rtty.us napisaĆ(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
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.
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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
.
Thanks,
Filip Ozimek
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