Here+ RTK base (M8p) RTCM corrections over telemetry

Good day all,

We are trying to repurpose
the Here+ RTK base (M8P) with directly connected to a telemetry radio to receive RTCM connections without the use of a flight controller. Meaning the Here+ RTK base (M8P) unit will now act as a surveying rover receiving corrections from another RTCM base station.

Does anyone know how should Wire the telemetry radio to the base board? And what would be the corresponding changes i would need to make to U-Center to be able to get this to work.

With reference to the picture, does anyone know what the M and P solder pads are for?

Kind Regards,
Meng