On Sun, May 13, 2018 at 10:57 PM, Artek Manuals <[email protected]> wrote: > Nigel > As I recall there is more to it than just the number of satellites. > involved. Also factored in to all the math is the signal strength of the > sats plus there relative angles to your spot on the earth. If all three are > directly overhead the solution is not that accurate compared to if they were > all at 45 degree elevation at widely divergent compass points gives a much > more accurate solution . Likely the math / firmware has a quality factor > built in depending on all the above factors not just the number of sats >
Hi, For a position/time solution, the dilution of precision (DOP) depends on the number of satellites and the satellite geometry. When a timing receiver is in 1D (position hold) mode, the TDOP is just 1/sqrt(# of sats). _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
