cell phone antenna booster

Cell phone antenna booster
: The Basics

On the most basic level, a cell phone is nothing more than a radio frequency transmitter. Each cell phone antenna sends a broadcast signal at a certain frequency which communicates with a cell phone tower that is listening and broadcasting at the same frequency. For instance AT&T Wireless phones use the 850 mhz radio spectrum, while T-Mobile offers the 1900 mhz spectrum. Essentially a cell phone works in much the same way as does a walkie-talkie with an antenna - by broadcasting the frequency sent from a units processor.

Cell phone antenna booster
: Full Duplex Signal Processing

A walkie-talkie sends a "half duplex" signal, meaning it broadcasts and listens on only one frequency. That's the reason you can't use one to talk and listen at the same time. Cell phone antennas operate via "full duplex" signals/ This means that even as the antenna is broadcasting your device's location to cellular towers it is also listening for incoming signals. This is what allows cell phone users to talk and listen simultaneously.

Cell phone antenna booster: Communicating With Cell Phone Towers

A Cell phone antenna boosterserves the simple purpose of allowing cell phone towers to know which tower to broadcast from. As a device moves away from one tower and closer to another, the towers communicate with one another about when to switch the signal to the closer tower. The determination of a phone's proximity to a tower is based on the strength of the signal being broadcast by the phone's antenna. However, it is not actually the antenna that creates the radio frequency. It is in fact the phone's chip set, which is set to match the appropriate signal broadcast channel. The antenna simply amplifies the chip set's frequency and sends signals to surrounding towers to connect to the cellular carrier's network.