AvMap EKPV, User Manual

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Aeronautical Navigator AvMap EKPV
Appendix A: NMEA Data Transfer
The bi-directional data port outputs and inputs NMEA Data. NMEA messages sent/received,
are defined as follows:
APA Autopilot Sentence “A” contains navigation receiver warning flag status, cross-
trackerror, Waypoint arrival status and initial bearing from origin Waypoint to the
destination Waypoint for the active navigation leg of the journey.
APB Autopilot message contains all of the above plus: heading to steer toward destination,
bearing from the present position to the destination (magnetic or true).
GGA GPS position, time, fix quality, number of satellites used, height of antenna, HDOP
(Horizontal Dilution of Precision), differential reference information and age.
GSA GPS receiver operating mode, satellites used in the navigation solution reported by
the $— GGA sentence.
GSV Number of satellites in view, satellite numbers, elevation, azimuth, and SNR value.
RMB Data status, Cross Track Error, direction to steer, origin, destination Waypoint,
Waypoint location, bearing to destination and velocity toward the destination.
RMC Time, Latitude, Longitude, Speed Over Ground, Course Over Ground and date.
XTE Cross-Track Error
For information about the NMEA format specifications: www.nmea.org.