David J Taylor wrote: > Dennis Hilberg, Jr. wrote: > [] >> I knew you weren't joking. However, I need to solve my sudden >> lack-of-signal issue before I do anything. GPS satellites don't >> change orbits suddenly do they? Or at all? > [] >> Dennis > > Dennis, > > Satellites do fail, and are replaced. Batteries wear out, thruster fuel > comes exhausted and so forth. > > They do not change orbit suddenly, however.... > > The Chinese recently did shoot down a satellite of their own in a much > lower orbit, creating lots of debris which could affect other > low-earth-orbit satellites. GPS satellites orbit higher than this, and > are unlikely to be affected. > > You could use a terminal emulation program (in Windows, FreeBSD or > whatever) to see what is coming down the line from the GPS18 LVC. I also > have a Windows program which will plot the signal strength received from > each of the 12 channels. > > One possibility may be that the GBS18 has switched to "Garmin" mode > instead of NMEA mode. > > Cheers, > David
Well I am getting signal, but it's intermittent. I know it's in NMEA mode as I've tailed the clockstats file, and have run gpsd and used the 'cgps' test client. I have yet to move the GPS 18 LVC around to see if I can get a better signal from somewhere else. It's just odd that it would work fine for a number of months as is and then all of a sudden stop receiving a steady signal. I will try your WXtrack program too. -- Dennis Hilberg, Jr. timekeeper(at)dennishilberg(dot)com NTP Server Information: http://saturn.dennishilberg.com/ntp.php _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions