[EMAIL PROTECTED] wrote: > Hi Bruce, > > either way GPS can't give you parts to the 14 short term as was claimed. > Also there are not many affordable carrier phase GPS receivers out there as > far > as I know. > > Also, 2 parts to the 11 over 1s - 100s is still not as good as a good OCXO > (parts to 12 or even 13 possible), so carrier phase performance from 1-100s > with parts to the 11 would not help the GPSDO perform better steady state > short > term 1s to 100s. > > bye, > Said > > Said
There's no particular reason that a GPS carrier phase disciplined OCXO need be particularly expensive unless of course it incorporates an Oscilloquartz 8607 with ultra low adev specs. Suitable receivers seem to be readily available. The only major complication is the need to phase lock their local oscillator to the OCXO being disciplined. In some case this is easy as a 10<Hz crystal is used. You've misinterpreted the statement 2E-11/Tau actually means: 2E-11 @ 1 sec 2E-12 @ 10sec 2E-13 @100 sec Bruce _______________________________________________ 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.
