There was some discussion on the gpsd-users list a few years ago about setting the ublox into "stationary mode":
https://lists.gnu.org/archive/html/gpsd-users/2013-11/msg00002.html https://lists.gnu.org/archive/html/gpsd-users/2013-08/msg00007.html I'm not 100% sure, but I think I finally have that working, by running the following before starting gpsd (ignore line wrapping in this email): gpsctl -t 'u-blox' -b -x '\x06\x24\xFF\xFF\x02\x03\x00\x00\x00\x00\x10\x27\x00\x00\x05\x00\xFA\x00\xFA\x00\x64\x00\x2C\x01\x00\x3C\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' /dev/ttyAMA0 Oddly, despite setting the proper type with -t, gpsctl still attempts some type probing (which can be seen with -D 5). With it set, the Speed value in cgps seems to be lower (typically 0.2 mph or less). Without it, it tends to be a bit higher. I'm guessing this won't actually do anything useful for ntpd accuracy, but I thought I'd mention it in case anyone wants to do more testing. -- Richard _______________________________________________ devel mailing list devel@ntpsec.org http://lists.ntpsec.org/mailman/listinfo/devel