GPSMAP 182/182C Owner’s Manual
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PPENDIX
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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
Summary of Contents for 182/182C
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