Hello Otto, I can't share any coordinates, but after analyzing NMEA messages from receiver I see the correct UTC time in first field of $GPGGA, $PQXFI (Qualcomm extended fix information), $GNSNS sentences. In repeating sentences time data changes every second as it should be. System's time in sync with NTP pool currently, so it has minimum delta possible.
$GPGGA,194359.00,_coordinates_,..... $PQXFI,194359.00,_coordinates_,..... $GNSNS,194359.00,_coordinates_,..... ... $GPRMC,194359.00,_coordinates_,..... ... $GPGGA,194400.00,_coordinates_,..... $PQXFI,194400.00,_coordinates_,..... $GNSNS,194400.00,_coordinates_,..... ... $GPRMC,194400.00,_coordinates_,..... Any way to perform manual 'reset' timedelta to any 'default' value? Martin ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Sunday, March 22, 2020 3:28 PM, Otto Moerbeek <o...@drijf.net> wrote: > On Sun, Mar 22, 2020 at 03:22:40PM +0000, Martin wrote: > > > The position is absolutely correct. I forgot to mention I changed Latitude > > and Longitude by different values. > > The timedelta is incorrect and it's only the question why. > > I missed a moment when huge time skew appeared. Just system clock was > > changed significantly to incorrect value. Now ntpd.conf set to NTP pool, > > but hope I can fix radioclocks. > > Martin > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > > On Sunday, March 22, 2020 12:54 PM, Otto Moerbeek o...@drijf.net wrote: > > > > > On Sun, Mar 22, 2020 at 12:19:39PM +0000, Martin wrote: > > > > > > > hw.sensors.nmea0.indicator0=On (Signal), OK > > > > hw.sensors.nmea0.timedelta0=619313970.981246 secs (GPS autonomous), OK, > > > > Sun Mar 22 12:47:08.981 > > > > ^^^^^^ > > > > hw.sensors.nmea0.angle0=10.0 degrees (Latitude), OK > > > > hw.sensors.nmea0.angle1=20.0 degrees (Longitude), OK > > > > hw.sensors.nmea0.distance0=30.0 m (Altitude), OK > > > > hw.sensors.nmea0.velocity0=0.000 m/s (Ground speed), OK > > > > It works for about two years before like a charm, but now timedelta > > > > 619313970.981246 secs. > > > > Tried to change GPS receiver, no effect. > > > > Martin > > > > > > You position is also suspect. Can you run cu on the port the GPS is > > > atteched to and get a snippet of the output? > > > -Otto > > Sigh, you are making troubleshooting this harder than needed by > editing output without saying so. Also, I asked for an NMEA output > log. > > Uncomment your ldattach line in /etc/ttys > kill -1 1 > cu -l ttyXX -s 4800 > > (Change speed to match your device). Without log I cannot help. > > -Otto
