[time-nuts] Disciplining Rubidium

Bruce Griffiths bruce.griffiths at xtra.co.nz
Thu Apr 24 17:53:02 EDT 2008

Tom Van Baak wrote:
>> For some $330 you can get a L1 GPS receiver outputting carrier phase
> Which make/model is this?
Novatel Superstar II?
>> measurements at 5Hz. This receiver also have a 10MHz tcxo driving the
>> whole receiver. Pseudorange measurement rms of a few dm. Carrierphase
>> rms below 1cm.
>> Btw... the Oncore VP did carrierphase measurements.
> Well, yes, but are these measurements suitable as part
> of a GPSDO project?
> /tvb


Yes, however you have to do all the required corrections for ionospheric 
phase delay etc in real time in an external processor.
These particular receivers have been used in real time arrays to monitor 
earth deformations of volcanic fields.


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