Bedienungsanleitung Navman Tracker 5430 (Seite 18 von 44) (Englisch)

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TRACKER 5430/5430i Installation and Operation Manual

NAVMAN

GPS worldwide navigation

The US Government operates the GPS system.

Twenty-four satellites orbit the earth and

broadcast position and time signals. The

positions of these satellites are constantly

changing. The GPS receiver analyses the signals

from the closest satellites and calculates

exactly where it is on earth. This is called the

GPS position.

The accuracy of the GPS position is typically

better than 5 m (16.4 ft) for 95% of the time. A

GPS antenna can receive signals from the GPS

satellites when it is almost anywhere on earth.

DGPS

A DGPS system uses correction signals to

remove some of the errors in the GPS position.

The TRACKER can use one of two types of DGPS

system:

WAAS and EGNOS DGPS

WAAS and EGNOS are two satellite based

DGPS systems. The correction signals are

broadcast by satellites and are received by

the TRACKER’s standard GPS antenna. The

accuracy of the corrected GPS position is

typically better than 5 m (16 ft) for 95% of

the time.

WAAS covers all of the USA and most of

Canada. EGNOS will cover most of Western

Europe.

Differential beacon DGPS

Differential beacons are land based radio

transmitters that broadcast correction signals

that can be received by a special receiver on

the boat. Differential beacons are usually

only installed near ports and important

waterways, and each beacon has a limited

range. The accuracy of the corrected GPS

position is typically better than 2 to 5 m

(6 to 16 ft).

7 Satellites

GPS antennas

• The TRACKER 5430i has a built in GPS antenna.

• The TRACKER 5430 must be used with an

external GPS antenna. It is recommended to

use the GPS antenna supplied.

• The TRACKER can apply the WAAS and

EGNOS DGPS corrections to any GPS antenna.

• Fit an optional differential beacon DGPS

antenna to give enhanced accuracy within

range of land based differential beacons

in areas where WAAS or EGNOS are not

available. Such a DGPS antenna has both a

GPS receiver and a beacon receiver, and it

automatically applies the beacon correction

to the GPS position.

• The TRACKER can use GPS satellite data from

a optional compatible instrument or antenna

connected by NavBus or NMEA (see sections

14 and 15-3). In this case, the TRACKER does

not need its own antenna.

To configure the TRACKER for different antenna

options, see section 13-3. For more information,

contact your NAVMAN dealer.

The TRACKER has a sensitive 12-channel receiver

built in, which tracks signals from all GPS

satellites visible above the horizon and uses

measurements from all satellites more than 5°

above the horizon to calculate the position.

Startup

Each time a GPS receiver is turned on, it normally

takes about 50 seconds before it outputs the first

position. Under some circumstances it will take

up to two minutes or longer.

Change the numeric data display

1 In the highway display, press MENU and

select Data setup.

2 Change a data field:

i Press the cursor keys to highlight the

field.

ii Press ENT to display a menu of the data

that can be shown in the field.

iii Select the data to show in the field; select

None to leave the field empty.

3 Repeat the above step to change other fields.

4 Finally, press ESC to return to the highway

display.

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Navman Tracker 5430 Seite 18

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