Hi The GPSDO vs GPSDO should be pounding pretty hard against the 1.0 x 10^-14 line out around a day. You should see a bit of a hump at 24 sidereal hours.
Bob On Dec 2, 2012, at 5:37 PM, Mark Spencer <mspencer12...@yahoo.ca> wrote: > I'm wondering how useful it is to compare two different GPS receivers to a > single Rb to get a sense of the GPS noise floor. I've been collecting some > data for the last week or so seem be making some headway with this. > > Not having a cesium or an Hmaser I elected to compare two different GPSDO's > to a single Rb and then assuming the data seemed sane, I thought I would then > compute the Adev between the two GPSDO's. My assumption is that by > comparing the two GPSDO's to the Rb it should be possible to detect when one > GPSDO is mis behaving or possibly when the Rb mis behaves. So far other than > a bit of a glitch at the start of the process things seem to be proceeding as > I expected. I hope to collect another two weeks or so of data if all goes > according to plan. > > I'm really only interested in the longer term numbers and I wouldn't put to > much trust in the shorter term results. > > Comments would be welcome especially if there is a fundamental flaw with this > process. > > Looking at the data gave me something to do this afternoon during some down > time on a business trip (: I reazlize this approach is probably not how the > pros would do this. > > Regards Mark Spencer > <Fury vs Z3805 vs PRS10 phase.gif><Fury vs Z3805 vs PRS10 > Adev.gif>_______________________________________________ > 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.
