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Interfacing – Garmin GPSMAP 182C User Manual

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GPSMAP 182/182C Owner’s Manual

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NTERFACING

Interfacing

The following formats are supported for connection of external

devices:
Garmin proprietary Differential GPS (DGPS), NMEA 0183

versions 3.0, ASCII Text Output, RTCM SC-104 input (vs. 2.0).
The following are the sentences for NMEA 0183, vs. 3.0 output:
Approved sentences—GPRMC, GPGGA, GPGSA, GPGSV,

GPGLL, GPBOD, GPRTE, and GPWPL.
Proprietary sentences—PGRME, PGRMZ, and PSLIB. The

GPSMAP 182/182C accepts NMEA input with support for the

DBT, DPT, DSC, MTW, and VHW sentences.

The GPSMAP 182/182C also includes NMEA input with support

for the WPL sentence and sonar NMEA input with support for

the DPT (Depth), MTW (Water Temp) and VHW (Water Speed

& Heading) sentences. If connecting to COM 2 for sonar NMEA

input, the unit interface must be set to NMEA In/NMEA Out. If

connecting to COM 1, the unit must be set to NMEA In/NMEA

Out.
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 and RTCM formats is

available for purchase at www.nmea.org