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10. INSTALLATION
10-9
10.5 Initial Settings
The GP-150-DUAL can output navigation information to external equipment
through the Interface Unit IF-2500. For example, it can output position data to a
radar or echo sounder for display on their screen.
Before selecting data to output, confirm what data the external equipment
requires. Output necessary data only. Outputting unnecessary data can cause
receiving problems at the external equipment.
Talker
All data transmitted by marine electronics equipment is prefixed with a
two-character code which tells external equipment what equipment is
transmitting data. This two-character code is called the “talker.” The
GP-150-DUAL contains the talkers GP, LC and DE.
Data format and data output availability
The type of data which can be transmitted depends on format. Output data
sentence of IEC 61162-1 and NMEA 0183 Ver. 1.5/Ver. 2.0.
AAM: Waypoint arrival alarm
APB: Autopilot sentence B
magnitude of cross track error, direction to steer, arrival alarm,
bearing to waypoint
("Heading to steer to destination waypoint data" not used)
BOD: Bearing-origin to destination
BWC: Bearing and distance to waypoint-great circle
BWR: Bearing and distance to waypoint-rhumb line
BWW: Bearing-waypoint to waypoint
DTM: Datum reference
GGA: Global positioning system (GPS) fix data
time of fix, latitude, longitude, quality indicator, number of satellites
in use, DOP, altitude, geoidal separation
("age of dgps data" and "differential reference station ID" not used)
GLL: Geographic position-latitude/longitude