Advanced Navigation Boreas D90 - Radio Modem RTK Corrections; Supported RTCM Messages; Raw Satellite Data

8.11.2 Radio Modem RTK Corrections
Figure 24: Trimble R4 Base Station
Figure 25: Trimble TDL 450L Radio Modem
Base station radio modem RTK corrections require both a base station and a radio modem receiver. The base
station is set up at a fixed location and transmits corrections to the radio modem receiver that is connected to
the mobile Boreas unit (the “rover”). The radio modem receiver and Boreas unit must remain within radio range
of the base station to receive these corrections. The base station should be located no more than 50 km from
the Boreas, and ideally closer. Advanced Navigation recommends contacting a local surveying company for
assistance setting up a base station.
8.11.3 Supported RTCM Messages
The internal GNSS receiver in Boreas supports receiving the following RTCM v3 messages.
Message Number
1002 1010 1045
1004 1012 MSM4
1005 1019 MSM5
1006 1020 MSM6
1007 1033 MSM7
1008 1044
Table 23: Supported RTCM v3 messages
8.12 Raw Satellite Data
Boreas supports the output of raw satellite data. This data can be used by post-processing software to achieve
high-accuracy kinematic positioning.
The maximum output rate for raw satellite data is 20 Hz, subject to the 9.1.3.15 GNSSConfiguration.
It can be enabled by turning on the 11.4.37 Raw Satellite Data Packet (ID 60) in the 9.1.3.2 Data Ports page
in the Web UI, or via the Packet Rates dialog in the Configuration menu of the Boreas Manager, see the figure
below.
v1.2 Page 44 11 Oct 2022
Boreas Reference Manual • Using Boreas