APM PT-3 Manuel d'utilisateur télécharger pdf (Page 9)

up to 4 restricted areas (Geo-Fence areas) to

mum speed limit alerts.

racker is working in combination with an

al Tracker is easy to configure through GPRS and SMS

llites, it applies a “Pseudo ranging” technique to calculate

pend on

aried factors, which include time.

aracteristics of

PS, it doesn’t indicate any malfunction of the mini tracker.

g situations may affect accuracy of GPS:

¾ Users can define and load

the device and setup maxi

Introducing GPS:

The SuperGuard Personal T

advanced GPS tracking system. It helps you determine your location,

enable preset contacts to track your position any time, and place SOS

calls in case of emergency.

The Person

over Internet or GPRS and 3G enabled cell phones, user-friendly, and

especially convenient for monitoring children, elderly and business

travelers.

Global Positioning System (GPS) is a global radio navigation system,

which consists of 24 MEO satellites and stations on the earth. A GPS

receiver built in the device calculates your location and altitude via the

signal from satellite. Based on triangulation of signals of at least three

of the sate

the transmission time of the radio signal from the satellite in order to

measure the distance of each satellite, and then pinpoint the current

location.

GPS Satellites emit two types of radio signals, “C/A”

(Coarse/Acquisition) and “P” (Precision). The latter one is preserved

for military use and requires decryption. Like other commercial GP

appliances, the Personal tracker uses “C/A” signal to pinpoint locati

and altitude. Likewise, the display accuracy of location will de

Please note that those variations are fundamental ch

The followin

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APM PT-3 Manuel d'utilisateur Page 9