Several of you have mentioned the Russian GPS system (Glonass) which has been in operation since the 1980's. Several commercial (high-end) receivers work with both GPS and Glonass. Google for details.
I borrowed one of Doug's (niceties.com) combined GPS and Glonass Javad receivers in 2001 and here is a track showing 10 GPS + 4 Glonass = 14 birds. http://www.leapsecond.com/pages/javad/gps14c.gif /tvb _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
