David J Taylor wrote:
How does this square with those who claim 4ns from their GPS devices?
Pfft. The defining document is rather old I guess. A lot happened in between. ( I looked into GPS in my diploma thesis ~1987 and not much after that ) GPS over time is not a static thing. Space and Ground Segment have changed quite a bit. And most everybody today is working from the Coarse Aquisition signal only with precission attributed initially to the P/Y-Code. And notice that most modern receivers have channels galore. What happens if you resolve time from a massively overdetermined setup? ( today you see and work on 10..16 sats at any time ) uwe _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
