GPS Location Reported to Signal K Incorrect

[zirinisp]

I am getting the following positions reported under the data browser on my signal k server.

The first 2 are from my plotter and the gps antenna attached to my raspberry. The last one is the one reported from teltonika and the values are incorrect or have a different format than the one expected.

navigation.position | { "longitude": 24.78245, "latitude": 37.8575033 } |   | 05/26 10:24:56 | 1.1  (129039)

navigation.position | { "longitude": 24.78244, "latitude": 37.85752333333333 } |   | 05/26 10:24:57 | gps_pi.GP  (RMC)

navigation.position | { "latitude": 7.693130305972483e-25, "longitude": -3.7512190583080584e-32 } |   | 05/26 10:24:32 | signalk-teltonika-rutx11.XX

When I go to the teltonika interface and check my position I get the following:

FIX TIME	LATITUDE	LONGITUDE
5/26/2022, 7:28:05 AM	37.857509	24.782490

Which is in line with the one reported from the first 2 devices.

[nmbath]

I am having the same issue. Any ideas?

[nmbath]

The issue lies in line 99 and 100. The data is being read as little endian and is actually in big endian. Changing the two lines too

const modemLat = Buffer.concat(data.slice(0, 2)).readFloatBE();
const modemLon = Buffer.concat(data.slice(2, 4)).readFloatBE();

fixes it for me.

[bergie]

This is weird, I'm unable to reproduce:

[sillymander]

Confirmed that code should be bigendian for the RUT 955

[nmbath]

Just done an upgrade, and wondered why things had behaved incorrectly. Seems like this has not been fixed. My system is reporting me as just north of the equator, when I am in the UK.

Modified my local install again.

[msirolla]

I have the exact same issue, using latest software. Server running on Cerbo GX, wired via LAN into a Teltonika RUTX11 with latest firmware.
Would it be possible to have a fix?

[dsuckow]

Have a RUTX11 and it seems also provided as big endian, added a config parameter to switch between big endian and little endian.

[msirolla]

Have a RUTX11 and it seems also provided as big endian, added a config parameter to switch between big endian and little endian.

Many thanks! Would you be so kind to please provide basic instructions on how I can get your update into my Signal K system? I’m still new at this 🙂

[bergie]

Should be fixed in 0.6.0 thanks to #125