Garmin StreetPilot - Manual (Page 47)

Reference
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‘Comm Port’ File Tab ‘Comm Port’ File Tab (top right picture)
Serial Data Format - Allows you to control the input/output format used when connecting
the StreetPilot to external devices. Six format settings are available:
! GARMIN Data Transfer - the proprietary format used to exchange waypoint, route, and track
log data with a PC or with another StreetPilot.
! NMEA Out - supports the input/output of standard NMEA 0183 version 2.3 data.
! None - provides no interfacing capabilities.
! DGPS RTCM/NMEA - allows Differential GPS (DGPS) input using a standard RTCM format and
also provides NMEA 0183 version 2.3 data.
! DGPS RTCM In - allows a standard RTCM DGPS input and other baud rates (besides 4800),
without any output capabilities.
Refer to Appendix C for more information on Wiring/Interfaces.
‘Comm Port’ File Tab
To select a serial data format:
1. Highlight the Serial Data Format field and press the ENTER key (lower right picture).
2. Select the desired setting and press the ENTER key.
Selecting an RTCM Format