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Interface Page
The Interface Page allows you to connect and use
devices such as computers and differential GPS (DGPS)
beacon receivers to the eTrex.
Input/Output Settings
The ‘Interface’ Settings Page allows you to use your
eTrex with external NMEA devices, DGPS beacon receiv-
ers, a personal computer, etc. You can choose from seven
different input/output serial data formats, or none at all.
Below is a description of each format:
• GARMIN - the proprietary format used to exchange
waypoint, route, and track data with a PC.
• GARMIN DGPS - allows DGPS input using a GARMIN
beacon receiver and a standard RTCM SC-104 format
and DGPS tuning.
• NMEA OUT - supports the output of standard NMEA
0183 version 2.0 data.
• TEXT OUT - allows simple ASCII text output of
location and velocity information, without any input
capabilities.
• RTCM IN - allows DGPS input using a standard RTCM
SC-104 format without any output capabilities.
• RTCM/NMEA- allows DGPS input using a standard
RTCM SC-104 format and supports the output of
standard NMEA 0183 version 2.0 data.
• RTCM/TEXT- allows DGPS input using a standard
RTCM SC-104 format and simple ASCII text output of
location and velocity information.
• NONE - provides no interfacing capabilities.
The interface options
will allow you to use
a PC to download
waypoints, routes,
and track logs.
NMEA
stands for
“National Marine
Electronics Association”
and
RTCM stands for
“Radio Technical
Commission for Maritime
Services”. Both are
involved in developing
technical standards for
the marine electronics
industry.
NOTE: Use the ‘RTCM IN’ setting if your
beacon receiver is self-tuning.
Reference
Interface Page
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