In message <[EMAIL PROTECTED]>, kd7ts writes: >Didier Juges wrote: >> There are sudden increases in noise (bursts that last from seconds to >> minutes) on the plots I posted. >> >> I believe the sudden and drastic increase in noise at times comes from >> the GPS loosing lock. At the moment, I cannot hook up the computer to >> the GPS and verify, but I will do that later. > >-------- > >I have a Brooks Shera GPSDO that exhibited similar symptoms. >The phase showed huge jumps around 4:00 - 4:30 every >morning.
This is very likely the effect of low elevation signal reflections. Try setting the mask-angle of the GPS receiver higher. The jumps happen when a satellite is added to or removed from the ensemble but is affected by a large amount of ionospheric delay. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
