GPSMAP 392/398/492/498 Owner’s Manual 93
APPENDIX > INTERFACING
Interfacing
The following formats are supported for connection of external
devices:
The following are the sentences for NMEA 0183, vs. 3.01 output:
Approved sentences
—GPRMC, GPRMB, GPGGA, GPGSA,
GPGSV, GPGLL, GPBOD, GPBWC, GPVTG, GPRTE, GPXTE,
GPWPL, SDDBT, SDDPT, SDMTW, SDVHW, and GPAPB.
Proprietary sentences—PGRME, PGRMM, and PGRMZ. The
GPSMAP 392/398/492/498 accepts NMEA input with support for
the DBT, DPT, MTW, VHW, and WPL sentences.
You can download a copy of Garmin’s proprietary communication
protocol on the Help and Support section of our Web site at
www.garmin.com.
Complete information regarding NMEA format is available for
purchase at www.nmea.org
