Advanced Navigation Boreas D90 - NMEA Input; Novatel GNSS Input; Topcon GNSS Input

10.1.2.1 NMEA Input
Description
:
This function accepts external data in the NMEA 0183 format. Advanced Navigation
recommends against using NMEA 0183 input wherever possible due to the inefficiency,
low accuracy and precision and weak error checking of the format. All NMEA messages
received must have a valid checksum. Supported messages are listed below. The
recommended combination of messages are GPGGA, GPVTG and GPZDA with optional
messages GPGSV and GPGSA.
Message ID Description
GPGGA 3D position
GPGLL 2D position
GPRMC 2D position, 2D velocity and coarse time
GPVTG 2D velocity
GPHDT
GNHDT
HEHDT
Heading
GPGSV Satellites
GPGSA Dilution of Precision
GPZDA Time
xxPIPS Depth below surface
xxVBW Water speed, ground speed
xxHDM Magnetic heading
PSIMSSB SSBL position
xxVHW Water speed and heading
xxDBS Depth below surface
Table 30: Supported NMEA messages
10.1.2.2 Novatel GNSS Input
Description
:
This function is designed for interfacing Boreas with a Novatel GNSS receiver. It accepts
data in the Novatel binary format and requires messages BESTPOS and BESTVEL at
rates higher than 1 Hz (20Hz recommended). The message BESTSATS is optional to
display detailed satellite information. The message HEADING is also supported for
ALIGN capable receivers.
10.1.2.3 Topcon GNSS Input
Description
:
This function is designed for interfacing Boreas with a Topcon GNSS receiver. It accepts
data in the GRIL TPS binary format and expects messages PG and VG at rates higher
than 1 Hz.
v1.2 Page 90 11 Oct 2022
Boreas Reference Manual • Interfacing