[time-nuts] Compensating phase differnces in dual frequency GPS receviers?

Peter Monta pmonta at gmail.com
Thu Dec 1 04:09:19 UTC 2011


Speaking of GPS's L2C signal, it turns out there's a timing difference
between L2C and L2, namely 90 degrees of phase (nominally).
Apparently there was some controversy over whether to include this
correction in the RINEX files.  The RINEX 3.0 document has details.

Even with all this complexity, it would be really nice for everyone to
have access to ~2 ns time, as a significant upgrade to present-day
inexpensive systems giving ~20 ns time using single-frequency
pseudorange.

Cheers,
Peter



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