1. Difficulty of tracking the location of a transciever makes it very difficult to locate.
2. Range of the unit within settled areas.
3. Scrambling techniques are feasible and can be made to provide moderate security for most transmissions.
4. The unit, with modification can be used as abug, being called upon by the controlling party from anywhere on the globe.
5. It with the right knowledge one can modify the celluar in both hardware and software to create a rather diversified machine that will scan, store and randomly change ESN's per call there by making detection almost impossible.
The basic elements of the cellular concept have to do with frequency reuse and cell splitting. Frequency reuse refers to the use of radio channels on the same carrier frequency to cover different areas which are separated by a significant distance.
Cell splitting is the ability to split any cell into smaller cells if the traffic of that cell requires additional frequencies to handle all of the area's cells.
When the system was first introduced, it was allocated 40mHz in ther frequency spectrum, divided into 666 duplex radio channels providing about 96 channels per call for the seven cluster frequency reuse pattern.
The cell sites contain radio, control, voice frequency processing and maintenance equipment, as well as transmitting and recieving antennas. The cell sites are connected by landline with the Mobile Telecommunications Switching Office.
Cell sites are located in the cells which make up the cellular network.
As mentioned above are layed out in a hexagonal type grid. Each cell is part of a larger cell which is made up of seven cells: There are also Mobile cell sites, which are usually used in the transitionsal period during the upscaling of a cell site due to increased traffic. You could easily install a few mobile cellular cell sites to provide a telephone -like network for workers and executives. The most unique component would be the transiever which provides the communications line between the cell site and the MTSO. In a remote location such alink could very easily be provided via satellite up/down link facilities.
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