Advanced Navigation Certus OEM Reference Manual page 134

Certus Reference Manual • Interfacing
9.1.2.1 NMEA Input
Description :
9.1.2.2 Novatel GNSS Input
:
Description
9.1.2.3 Topcon GNSS Input
:
Description
9.1.2.4 ANPP Input
:
Description
v2.4
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 RMC with optional messages GPGSV and
GPGSA. If RMC is not available, GGA and VTG can be used.
Message ID
GPGGA GNGGA
GPGLL GNGLL
GPRMC GNRMC
GPVTG GNVTG
GPHDT GNHDT
HEHDT
GPGSV GNGSV
GPGSA GNGSA
xxPIPS
xxVBW
xxHDM
PSIMSSB
xxVHW
xxDBS
Table 29: Supported NMEA messages
This function is designed for interfacing Certus 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.
This function is designed for interfacing Certus 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.
This function accepts data in the ANPP format as specified in
Packet Protocol.
Description
3D position
2D position
2D position, 2D velocity and
coarse time
2D velocity
Heading
Satellites
Dilution of Precision
Depth below surface
Water speed, ground speed
Magnetic heading
SSBL position
Water speed and heading
Depth below surface
Page 121
Notes
All constellations
All constellations
All constellations
All constellations
All constellations
Only GPS
(GPGSV)
10 Advanced Navigation
2024-12-17