I come from a family line of police, and well... I had this used on me when I ran away from home lol...
What they do is they send a radar message called a "ping to a cell phone tower and this tower then sends a ping which hits your phone, your phone then sends a ping to the nearest 3 cell towers which then give a triangulated area as to where that phone might be. So in a matter of seconds (or minutes) they sent one message and have the approx. location of your phone.
it's accurate within to within three miles to my understanding
By using the triangulation method
hey hey hey it is collect by phones
Triangulation for accuracy. The method is called "triangulation" ... same method used by GPS units to coordinate the exact locations. Please see the related question for more information.
EVERY mobile phone that's switched on - can be traced to the nearest three network masts - this will trace your handset to an area roughly 3 metres by 3 metres square. Using 'triangulation' - and hand-held detectors, your handset can be traced to your exact location !
You can't.
GPS positioning uses a three-dimensional triangulation method (called trilateration) to determine the location of the GPS receiver. Knowing the distance and location of multiple GPS satellites, the receiver can mathematically calculate the intersections of three (or more) spheres to determine its own location, using geometry in three dimensions. Trilateration is explained at http://en.wikipedia.org/wiki/Trilateration.
Track your location without using GPS (using LAC and CID},Software to get location codes.
thorough triangulation
No, sadly it is much simpler than that. There are concrete pillars that stretch deep underground that hold "La Grande Tour" up.
It is a method of putting small applications on mobile phones using Bluetooth and Java
Mobile tracking work by using location data from different sources and then using them to find out precise GPS location on map. CallTracer.org is a free mobile tracking website which provides owner name address and location details.
The distance of an earthquake epicenter from a seismic station. Using the Three point method, the distance from 3 seismic stations are used to locate the epicenter by triangulation.