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Forum Index : Other Stuff : GPS

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dwyer
Guru

Joined: 19/09/2005
Location: Australia
Posts: 574
Posted: 08:38am 27 Nov 2013
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GPS
That fitted on any motor vehicles and wanted information about How GPS alert the warning on some of fixed speed cameras and red light camera work but l aware will not work on any police speed camera however will work on Radar detector due different setup.

Dwyer
 
Tinker

Guru

Joined: 07/11/2007
Location: Australia
Posts: 1904
Posted: 03:15am 28 Nov 2013
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????? Your message is not clear to me.

As I understand it, a GPS is a passive device. It receives satellite timing information and uses the time difference of at least 3 satellites to calculate your global position.
One can link this info to some mobile telephones which then can transmit where the GPS unit is located at any instant.

Or are you asking with regard to the little voice in your 'in car navigator' that says: red light camera 250m ahead? That info is pre programmed to the street data you downloaded from the net.
Klaus
 
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