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Thread: Mobile trackers in Mobile phones

  1. #1
    Join Date
    Mar 2008
    Posts
    382

    Mobile trackers in Mobile phones

    Phone tracker is a java application which runs on a mobile phone. It communicates with a bluetooth GPS device and records the location at intervals.
    Mobile phone tracking tracks the current position of a mobile phone even on the move. To locate the phone, it must emit at least the roaming signal to contact the next nearby antenna tower, but the process does not require an active call. GSM localisation is then done by multilateration based on the signal strength to nearby antenna masts.
    Mobile positioning, i.e. location based service that discloses the actual coordinates of a mobile phone bearer, is a technology used by telecommunication companies to approximate where a mobile phone, and thereby also its user (bearer), temporarily resides. The more properly applied term locating refers to the purpose rather than a positioning process. Such service is offered as an option of the class of location-based services.



    In order to route calls to a phone the cell towers listen for a signal sent from the phone and negotiate which tower is best able to communicate with the phone. As the phone changes location, the antenna towers monitor the signal and the phone is roamed to an adjacent tower as appropriate.

    By comparing the relative signal strength from multiple antenna towers a general location of a phone can be roughly determined. Other means is the antenna pattern that supports angular determination and phase dicrimination.

    Newer phones may also allow the tracking of the phone even when turned on and not active in a telephone call-. This results from the roaming procedures that perform hand over of the phone from one base station to another

  2. #2
    Join Date
    Oct 2008
    Posts
    42
    hi Michael25,

    The information provided by you on Mobile tracker with the Diagram is really useful.

    Thanks

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