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Garmin GPS 120 User Manual

Page 53

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The last GPS 120 setup page is the I/O setup

page. This page lets you specify the interfacing for­

mats for connecting external devices. There are six
I/O options available: GRMN/GRMN, None/None,

None/NMEA, NMEA/NMEA, RTCM/None, and
RTCM/NMEA.

Each designation lists the input format first, fol­

lowed by the output format. To select I/O format:

1. H ighlight the I/O field and press

2. Use the

select the desired setting and press

The GRMN/GRMN setting is a proprietary for­

mat that lets you exchange information such as
waypoints, routes and track logs between two com­

patible GARMIN GPS units or a PC with an option­

al GARMIN PC kit. During data transfer, the num­
ber of packets being exchanged will be displayed
on screen. To select a transfer option:

1. H ighlight the 'host* field and press

2, U sethe i

setting and press

To disable all GPS 120 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 without RTCM input), the NMEA field will
become highlighted. To choose an NMEA

format (0180,0182 or 0183 version 1.5 or 2.0):

1. Press 0to begin a N M EA selection.

2. U sethe >A,and '▼ 'keystoselectthedesired

setting and press

3. The baud rate w ill be selected autom atically.

1^0

SETUP

iGRMH^'GRriH

WfilTING...

_____o-f_____

PACKETS

I/'O

SETUF

[flOHE^HMER?

HOST
WAITING...

_____oT______

PACKETS

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