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Getting your GPS position
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Getting your GPS position
[ Edited ]
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mccbleue 
Mobile Guru
Posts: 3178
Bruxelles / Brabant, Belgium
Message 1 of 1
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POSITIONING METHODS:
Phones that are capable of using GPS (Global Positioning System) will have several different methods of positioning. You can select which positioning methods you use by going to Menu> Tools> Settings> General> Positioning> Positioning Methods.
(1) Integrated GPS - This refers to a phone's built in GPS receiver. GPS satellites continuously transmit their location relative to the Earth, and your phone's GPS receiver can calculate its own position if it knows the position of at least three satellites. Today, almost all N- and E-series phones have integrated GPS, plus a selection of 6xxx phones.
(2) Bluetooth GPS - If you do not have integrated GPS or you wish to improve GPS reception, you can connect your phone to an external GPS receiver device which can replace or complement Integrated GPS.
(3) Assisted GPS - This is a network-based service used to help fix a GPS position. When using this, small amounts of data are transmitted so you need a network-based internet service from your network operator for which you may be charged by the download volume. Only small amounts of data are involved, but you should take care using this feature if you are travelling outside your own country as roaming data charges can be high.
(4) Network-based - whenever your phone is switched on and in range of your operator's network, it knows which base station (commonly known as the transmitter or mast) it is connected to, and using that information it can approximate your position using this network data. This is an additional help in obtaining a GPS fix, and it also makes a brief data connection.
OBSTACLES:
A number of factors can affect your phone's ability to obtain its GPS position:
(a) First time use - Fresh out the box, it may take 15-20 minutes for your phone to get its first ever GPS fix, longer in extreme cases.
(b) Built-up areas - if you are in a city with many tall buildings, they may interrupt the signals from the GPS satellites and make it harder to obtain and maintain a fix.
(c) Weather - adverse weather conditions, particularly heavy cloud, can affect the strength of the GPS signals getting through from the satellites.
(d) Receiver location - Do you own an N95 or N95 8Gb? Your GPS receiver is under the keypad, so ensure you always have the slider open when using GPS.
(e) Your Windscreen - Heat-reflective (athermic) windscreens common in Citroën, Peugeot and Renault cars can interfere with GPS signals, as can windscreen heating elements often found in Ford cars. If you have one of these, an external GPS receiver or signal booster can be very useful.
Message Edited by grschinon on 05-Dec-2008 11:20 AM
Message Edited by mccbleue on 08-Jan-2009 09:49 PM
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04-Dec-2008 10:16 PM
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