Mounting Page 50Document id: 7000 108-011 A22.16.5 RTCM interfaceThe AUX port(normally not used) on the R4 Transponder handlesinput of differential corrections in the RTCM format. When thisport is configured for RTCM input (default) it accepts thefollowing RTCM messages:! Message type 1 ñ Differential GPS Corrections Fixed! Message type 2 ñ Delta Differential GPS Corrections Fixed! Message type 9 ñ Partial Satellite Set Differential GPSCorrections FixedThese messages are the ones used in the Radio Beacon Long Wavesystems operated by coastguards and lighthouse authoritiesthroughout the world. For the definition and data encoding of thesemessages see Ref. [4].
