Garmin GPS 45 User Manual download pdf (Page 52)

The GRMN/GRMN setting is a proprietary for-

mat that lets you exchange information such as

waypoints, routes and track logs between two GPS

45s or a PC with an optional GARMIN PC kit.

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

2. Use the

and

keys to select the desired

setting and press

To disable all GPS 45 interfacing capabilities,

select the None/None setting. If you want to out-

put 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

to begin a NMEA selection.

2. Use the

and

keys to select the desired

setting and press

3. The baud rate will be selected automatically.

The last two format settings allow the GPS 45

to accept RTCM DGPS corrections in RTCM 104

version 2.0 format. The RTCM/NONE format will

allow connection to any manually tuned beacon

receiver with the proper output interface, with the

baud rate selectable from the GPS 45.

The RTCM/NMEA selection controls the

GARMIN GBR-21 beacon receiver. Once a RTCM

setting has been selected, the GPS 45 will automat-

ically try to tune the last frequency and bit rate

you selected or will switch to the default frequency

of 304.0 kHz with a bit rate of 100 bps if no previ-

ous beacon has been tuned. You may also enter

your own frequency and bit rate if desired.

Reference

I/O and DGPS

Setup

45 manual Rev. B 8/4/98 11:10 AM Page 44

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Garmin GPS 45 User Manual Page 52

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