Hi @jason4,
Nice to see you back!
We haven’t tested the Ginan service with our Reach units, but generally, they support RTCM3 messages. For accurate solution computation, it’s important to include messages with the Antenna Reference Point (ARP) and Multiple Signal Messages (MSM). Commonly, these messages are 1006, 1074, and 1077.
You might find a list of supported RTCM3 messages in this thread useful.