RTCM protocol

Q&A forumCategory: QuestionsRTCM protocol
YH asked 4 weeks ago
Hello
I have confirmed that the RTCM data is coming in through the binary window.
I want to know the message type of RTCM data.
I even checked that it came in according to the RTCM protocol in the data sheet.
Class/ID cannot be checked which message type it is. how do i check
Ardusimple
Staff replied 4 weeks ago

Hi YH,
1. Can you explain which product are you using and what are you trying to do?

1 Answers
clive1 answered 4 weeks ago

rtcm.org can provide you with the full specification standard

 

They use a binary packet format, and this is independent of the UBX format. The receiver can output and process packets interleaved in UBX, RTCM3 and NMEA forms

 

Its usually not necessary to understand the internal payload to process and transport the packets, I’ve posted examples to the uBlox forum related to this, and I’ve attached some code examples here related to them. The payload format is non-trivial, and bit-wise, but is documented.

https://github.com/cturvey/RandomNinjaChef/blob/main/RTCM3Wrapper.c

https://github.com/cturvey/RandomNinjaChef/blob/main/RTCM3Test.c