Garmin GPS 125 Sounder - Manual (Page 53)

Interface Setup
The interface setup page lets you specify the inter-
facing formats for connecting external devices. There
are five interface options: GRMN/GRMN, None/None,
None/NMEA, RTCM/None, and RTCM/NMEA. Each
option lists the input format first, followed by the out-
put format.
To select I/O format:
1. Highlight the I/O field and press
F
.
2. Use the
U
and
D
keys to toggle through and
select the desired setting, and press F .
The GRMN/GRMN setting is a proprietary format
that lets you exchange information such as waypoints,
routes and track logs between two GARMIN GPS
devices or a PC. During data transfer, the number of
packets being exchanged will be displayed on screen.
To select a transfer option:
1. Highlight the ‘HOST’ field and press
F
.
2. Use
U
and
D
to select a setting and press
F
.
To disable all interfacing capabilities, select the
None/None setting. If you want to output NMEA data
to compatible external devices without any differential
input capability, select the None/NMEA setting. Once a
NMEA output setting has been selected (with or with-
out RTCM input), the NMEA field will become high-
lighted. NMEA formats 0180, 0182 or 0183 (1.5 or
2.0) are available.
To select a NMEA format:
1. Press
F
to begin a NMEA selection.
2. Use
U
and
D
to select a format, and press
F
.
49
A field for additional infor-
mation will be displayed
when required for the select-
ed interface option. Above,
the None/NMEA option will
allow input of NMEA ver-
sions and a baud rate.
REFERENCE
Interface
Options
Choose a ‘HOST’ field
based upon the type of
information transfer you
want to occur between the
two interfacing devices.
125 Man Rev B 7/23/98 11:48 AM Page 49