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 In a message dated 4/23/2008 17:59:00 Pacific Daylight Time, [EMAIL PROTECTED] writes:
Only true if you dont use carrier phase measurements to discipline the OCXO. When carrier phase discipling is used then a short term (1 - 100sec) phase error measurement noise of around 2E-11/Tau is possible. However the accuracy at 1 day is limited to around 1E-14 by the SV local oscillator instability and other phase delay instabilities. Bruce **************Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp00300000002851) _______________________________________________ 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.
