Garmin NavTalk GSM - Manual (Page 108)

98
Section 4
System Options
Interface Tab
Serial Data Format
Options Menu
Interface Settings
‘Interface’ Settings
The ‘Interface’ Settings Page allows you to choose from 12 different
input/output serial data formats, or none at all. This feature is used when
connecting your unit to external NMEA devices, DGPS beacon receiver, a
personal computer, etc. It is necessary to have a working knowledge of
these applications. Below is a description of each format:
GARMIN - the proprietary format used to exchange waypoint, track,
and map 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 - supports the input and output of standard NMEA 0183
version 2.3 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 In/NMEA Out - allows DGPS input using a standard RTCM
SC-104 format and supports the output of standard NMEA 0183 ver-
sion 2.3 data.
RTCM In/Text Out - allows DGPS input using a standard RTCM
SC-104 format and simple ASCII text output of location and velocity
information.
Modem - allows connection for data transmission using a PC. Refer to
Appendix H on page 111.
None - Provides no interfacing capabilities.
The Baud rate
options are select-
able only for Text
Out , RTCM In,
and RCTM In/Text
Out, Format
options.
Beacon Options
Status, SMR, and
Distance data is
independent of
menus and is dis-
played for only
certain Serial Data
Format options.
Frequency is
selectable for only
certain Formats
Bit Rate is select-
able for only cer-
tain Formats.
Select the desired Serial data Format from the list. If ‘GARMIN
DGPS’ or ‘RTCM In/NMEA Out’ format is selected, additional fi elds
are provided to control a GARMIN differential beacon receiver (e.g.
GBR 21) directly from your unit. Tuning is automatic with ‘Scan’ or
you can enter the beacon frequency and bit rate when you select
‘User’ from the Beacon list to manually tune the receiver. For more
information, refer to instructions supplied with the beacon receiver.
When selecting, ‘Text Out’, ‘RCTM In’, and ‘RTCM In/Text Out’
formats, a Baud Rate fi eld with a list of options will display.
Section 5
NvTlkGSMManual copy.indd 98 12/2/2002, 8:43:22 AM