Garmin GPS II Owner's Manual page 84

REFERENCE
During data transfer, the num-
ber of packets being exchanged
will be displayed on screen.
78
Interface Setup
The GPS II's interface page lets you specify the formats for connecting external
devices. There are six options: GRMN/GRMN, None/None, RTCM/None,RTCM/NMEA,
NMEA/NMEA, and None/NMEA. Each option lists the input format first, followed by
the output format.
To select I/O format:
1. Highlight the I/O field, and press ENTER.
2. Select the desired setting, and press ENTER.
The GRMN/GRMN setting is a proprietary format that lets you exchange informa-
tion such as waypoints, routes, and track logs between two GARMIN GPS devices or a
GARMIN GPS and a PC. There are eight data transfer options: send alm, send wpt,
send trk, send rte, request alm, request wpt, request trk, request rte.
To select a transfer option:
1. Highlight 'HOST', and press ENTER.
2. Select a desired setting, and press ENTER.
To disable all interfacing capabilities, select the None/None setting. If you want to
output NMEA 0183 data without any differential input capability, select 'None/NMEA.'