Settings
98-175666-D Chapter 3: Setup of the antenna 3-16
3. Click Apply.
4. Select the desired position mode.
5. Click Apply.
About external GPS input
External GPS input is connected to the BDU on the heading input using RS-232 or RS-
422. The supported baud rates are 4800, 1N8 or 38400, 1N8. The baud rate is auto-
detected by the BDU after boot up. If the baud rate has been changed during
operation, the BDU must be rebooted to detect a new baud rate.
External GPS input supports NMEA 0183 Version 4.10 GPRMC string with checksum.
The GPRMC string must have 12 data fields all with values in. Empty fields are not
supported.
Example: $GPRMC,122801.000,A,5547.6343,N,01231.3279,E,0.00,59.75,261020,0,D,A*24
The GPS format in the GPRMC string is Degrees and Decimal Minutes (DDD° MM') e.g.:
5547.6343 N, 01231.3279 E.
The GPS format on the DASHBOARD is shown as Decimal Degrees (DDD.DDDDD°) e.g.:
55.79 N, 12.52 E.
If the checksum or format of the GPRMC string is wrong the ACU will generate following
warning message:
B060-0 Terminal WARNING NMEA 0183 parse error (00000000)
If the external GPS input is lost or GPS invalid the ACU will fall back to built-in GNSS but
generate following warning message:
8084-0 Terminal WARNING External GPS data (00000041)
Position mode Description
Mode Select one of the following:
• GNSS (default)
• Manual
• External
GNSS Select one of the following:
• GPS (default)
• BEIDOU
• GPS + BEIDOU
• GLONASS
• GPS + GLONASS
Latitude, Longitude,
Altitude
Only if Position Mode is set to Manual: Enter the values
Table 3-12: Position modes
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