Hi Matt, on Fury we typically see the 1PPS aligned to within +/-25ns or so without calibration when two units use the same antenna feed. There is a good paper on the M12+ receiver's accuracy from Synergy/NIST, they tested five receivers against UTC (at UTC!!). They came up with a baseline error of 2ns over 3 weeks when the units are calibrated. You can find the paper on our website: _http://www.jackson-labs.com/docs/Motorola_M12.pdf_ (http://www.jackson-labs.com/docs/Motorola_M12.pdf) We did not do tests over longer baselines yet. bye, Said In a message dated 1/5/2009 11:32:06 Pacific Standard Time, boysc...@gmail.com writes:
The other concern, of course, is that even if both units were very close, they will be exposed to slightly different environmental conditions (different A/C settings, different cycling times, etc.). Are there any good papers discussing this subject? Any data out there? Said -- have you measured this sort of thing on the Fury? Thanks, Matt _______________________________________________ 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.