UBX Protocol (u-blox)

Decodes NAV-PVT, NAV-SAT, NAV-SOL and NAV-POSLLH messages from u-blox GNSS receivers. Values latch between frames.

Wire Format

The parser expects sync-stripped messages:

[class][id][len lo][len hi][payload ...][ckA][ckB]

Parameter	Type	Default	Description
Validate checksum	boolean	on	Rejects messages with an invalid Fletcher checksum.

Channel	Value	Message
1-2	Latitude, longitude (degrees)	NAV-PVT, NAV-POSLLH
3-4	Height MSL, ellipsoid height (m)	NAV-PVT, NAV-POSLLH
5-6	Ground speed (m/s), heading (degrees)	NAV-PVT
7-9	Velocity N/E/D (m/s)	NAV-PVT
10	Satellites in use	NAV-PVT
11	iTOW (ms)	NAV-PVT
12-14	iTOW, version, satellite count	NAV-SAT
15-19	ECEF X/Y/Z (m), accuracy (m), satellites	NAV-SOL

Select the Binary (raw bytes) decoder with a B5 62 start delimiter (Hex Delimiters enabled) so the frame reader strips the sync characters.