Hi @phainein7,
Apologies for the delay in getting back to you!
I took some time to double-check your analysis with the team. For MSM4 and higher, the RTCM3 1084 message includes all the info stored in 1230. However, we still keep the 1230 messages for compatibility with some older receivers.
We ran some tests with our Reach devices for a similar inquiry. Indeed, RTCM 1230 didn’t show up in the NTRIP checker. But when we checked the incoming messages on the rover, the 1230 messages were actually present.