Nmea attachment, Nmea message sets – Magellan eXplorist XL User Manual

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NMEA Message Sets

Data Transfer

Your GPS receiver can be set to output GPS data in the NMEA 0183
format to interface with other marine devices.

The dataport must be turned on and the output message format
selected in SETUP.

NMEA DATA MESSAGES. NMEA data is output at the baud rate selected
in Setup, 8, N, 1, checksum off. These settings are acceptable to most
equipment and software applications.

There are several NMEA output message sets, each with a slightly different
application. Check the documentation for your external equipment to
select the appropriate message set.

SET

OUTPUT/USAGE

0183A BWC, APA, GLL, VTG

Remote displays, version 1.x marine autopilots

0183B RMC, RMB

NMEA-recommended navigation data for remote map, etc.

0183C APB, GGA, BWC, GLL, VTG

Version 2.0 marine autopilot data and satellite data

NMEA Message Definitions

APA

Autopilot cross track error, direction to steer, status of GPS, route
status, destination waypoint name, and bearing from origin to
destination (old format).

APB

Revised autopilot message contains all of the above plus: heading
to steer toward destination, bearing from the present position
to the destination (magnetic or true).

BWC

Range and bearing to a waypoint

GGA

GPS position, time, fix quality, number of satellites used, HDOP
(Horizontal Dilution of Precision), differential reference
information, and age.

GLL

GPS-derived latitude, longitude, and time of fix.

RMB

Data status, cross track error, direction to steer, origin, destination
waypoint, waypoint location, bearing to destination, and velocity
toward the destination.

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