MIDLAND Geopoint Box SMS - Manual (Page 17)

16
General Information
To communicate with the tracker through a PC in GPRS network, check if a fi rewall is installed, and allow the
access to the port which will be used for the communication. This procedure must be carried out only by
people which have the proper technical features.
If Windows Firewall is enabled, during the communication GPRS access the following window is displayed.
Keep Blocking The access to the port is stopped. It is
not allowed to communicate in GPRS
network.
Unblock The access to the port is always allowed.
It is possible to communicate in GPRS
network.
Ask Me Later The access to the port is temporary
allowed. It is possible to communicate in
GPRS network. At the next communication
GPRS access, the same window will be
displayed.
If external fi rewall is installed, refer to the network administrator.
GPS System
The GPS (Global Positioning System) is able to detect the user’s position in any given point of the Earth’s
surface and consists in a ground receiver which captures signals from a series of satellites in orbit.
The GPS receiver analyses and calculates the data received from the satellites and pin-points the present
location (FIX procedure).
If the GPS receiver reports that a two dimensional satellite FIX is available (2D FIX), it means that the signal
is adequate.