Nera WorldPro1000, Руководство пользователя

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USER GUIDE
USER GUIDE
Nera WorldPro 1000/1010
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USER GUIDE
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OPERATION
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USER GUIDE
USER GUIDE
GPS
The Global Positioning System (GPS) uses 24 low
orbital satellites to fix the position of the terminal
anywhere on the globe.
GPS fix required
The BGAN network requires a valid GPS fix to success-
fully register your terminal. Nera WorldPro only attempts
to obtain a GPS fix the first 20 minutes after power on.
The GPS receiver must see at least three GPS satellites
to obtain a 2-dimensional fix (2D fix).
The frequency of use determines how quickly the
GPS receiver built-in to the terminal (see above) can
obtain a fix - it may take between a few seconds and
5 minutes.
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To obtain a GPS fix
1
Check the Signal indicator status to see if your ter-
minal has a GPS fix. For possible statuses, see Antenna
pointing later in this manual.
2
Place the terminal in a position where it has the
best view of the open sky. The best results are ob-
tained if you lay the terminal flat.
The GPS receiver is located in the top left corner of the
terminal (see figure) . Therefore make sure this area of
the Antenna unit in particular has a clear line of sight
to the sky.
3
If the Signal indicator lights yellow, the terminal
has a stored GPS fix.
A stored GPS fix can be used when registering onto
the network, but only if the terminal has not been
moved since it was last used, or is within the same
area (less than 300 km).
4
When you have a blinking green Signal indicator,
you have a new fix. You are ready to point the termi-
nal to the Inmarsat satellite and register with the
BGAN network.
When you power down the terminal, the GPS posi-
tion is stored, and you are able to move the Nera
WorldPro to a place where you do not obtain a GPS
fix, for example your hotel window.