Rule of thumb: every meter off in survey altitude is three nanoseconds. The error due to inaccurate latitude/longitude is much smaller in nanoseconds per meter for any reasonable viewable sky.
Tim N3QE On Sun, Nov 3, 2013 at 10:51 PM, Bob Stewart <b...@evoria.net> wrote: > I'm experimenting with an Adafruit receiver (MTK3339) and I'd like to be > able to compute the time error delta between each reported position. I can > guess it's a vector difference between each two successive points converted > to ns, but beyond that, I don't know what to do. IOW, I need to know the > time error as the thing reports it's wandering around the block. Is the > error only related to east and west movement, or does the north/south > component play a role, too? > > Bob - AE6RV > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
