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REFERENCE
Setup Menu:
Interface
The ‘GARMIN’ option
allows the GPS 12 MAP
to exchange data with a
PC or another GPS 12
MAP. Use this setting
with the optional PC
Software Kit.
Over 100 different da-
tums are provided to al-
low the GPS 12 MAP to
correspond to various
paper charts/maps. Use
WGS 84 unless your
chart specifies otherwise.
To change the position format and/or map
datum:
1. Highlight the ‘Position Format’ or ‘Map Datum’ field
and press ENTER.
2. Select the desired setting (using the rocker keypad)
and press ENTER.
Interface Settings
Format lets you control the input/output
format used when connecting your GPS 12
MAP to external NMEA devices, a DGPS
beacon receiver, a personal computer, etc.
Five format settings are available:
• GARMIN — the proprietary format used
to exchange waypoint, route, track log
data with a PC or with another GPS 12
MAP.
• NMEA — supports the input/output of
standard NMEA 0183 version 2.0 data.
• None — provides no interfacing
capabilities.
• RTCM/NMEA — allows Differential GPS
(DGPS) input using a standard RTCM
format and also provides NMEA 0183
version 2.0 output.
• RTCM Text — allows DGPS input using
a standard RTCM format, without any
output capabilities.
• Text Out— allows DGPS output using a
standard RTCM format, without any
input capabilities.