They provide redundancy and for carrier phase surveying, probally quicker solution times.
For timing, it would just be better redundancy.... Brian Tom Van Baak wrote: >>Just curious on another topic : I have seen advertized GPS boards with >> >> >20-channel > > >>capability, Given that, at least based on my direct experience, even with >> >> >a clear > > >>horizon you rarely have 12 satellites in view, what does buy you having >> >> >that > > >>capability available? TNX. >> >> > >Those are Glonass + GPS receivers. > >/tvb > > > >_______________________________________________ >time-nuts mailing list >time-nuts@febo.com >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts