RTCM Corrections

Decodes RTCM3 reference-station and MSM7 message headers used in RTK positioning. Values latch between frames.

Wire Format

[D3][reserved + length: 2 bytes][payload ...][CRC-24Q: 3 bytes]

Parameter	Type	Default	Description
Validate CRC	boolean	on	Rejects frames with an invalid CRC-24Q checksum.

Channel	Value	Message
1	Station id	1005
2-4	ECEF X/Y/Z (m)	1005
5-8	Station id, epoch (ms), sync flag, satellites	1077 (GPS MSM7)
9-12	Station id, epoch (ms), sync flag, satellites	1087 (GLONASS MSM7)

Select the Binary (raw bytes) decoder. The 0xD3 preamble must be the first byte of each frame.