Yo Lars! On Tue, 7 Nov 2017 20:32:19 +0000 Lars Walenius <[email protected]> wrote:
> Another question: If You have an error in the surveyed position of
> say 3meters and you receive all of the available satellites in all
> directions how much will this really affect your timing?
I'll oversimply a bit by repeating Adm. Grace Hoppers famous giveaway.
When asked, she handed out 9 inch long peieces of wire, and said: that
is a nanaosecond.
3m is about 118.11 inches is about 13 ns. So worst case, skipping the
3D math, yoy get about +/13 ns.
Which is small compared to the published GPS time resolution (IS_GPS_200H,
page 54) of 90 ns.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
[email protected] Tel:+1 541 382 8588
Veritas liberabit vos. -- Quid est veritas?
"If you can’t measure it, you can’t improve it." - Lord Kelvin
pgpNO0agkFwFQ.pgp
Description: OpenPGP digital signature
_______________________________________________ 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.
