Alberto di Bene <[EMAIL PROTECTED]> writes: > 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?
In case the correlator banks are strictly assigned to a receiver channel, multiple channels could assist in looking for a specific satellite signal. Now vith 30 (29?) live satellites having 12 normal satellites and one or two SBAS (WAAS/EGNOS/MSAS) sats are not uncommon. In general the more correlators you have the quicker acquisition / reacq. you will have. Having a stationary scenario, with a good antenna placement, surveyed position and looking only for good timing performance. Whats the benefit of 12 channels over 6? You are already having 5 reduntant channels... With the present positioning measurement noice on good receiver down in the some dm range - focusing on translating that receiver noise also to the PPS signal, is more important. On the other hand. Sub 1us noise PPS pulse is good enough for my NTP use... _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
