680045 - RAIM
680127 - 10 Hz Position/Raw data Update Rate
680128 - 20 Hz Position/Raw data Update Rate (Not available with DG RTK firmware)
680139 - Differential Beacon
680141 - User Defined Messaging
680143 - 3rd Serial Port
680149 - Multi-base Differential with WADGPS (Not available with 20 Hz option)
680132 - RTCM Base (Message Types - 1,2,3,6,9,16)
802036 - RTK Upgrade Kit (Option [J] and RTK firmware)