Cell phone transmitters are basically the information source for your phone. They send and receive messages via electromagnetic fields, and they allow the phone to function without wires or batteries. With the aid of a simple antenna, it is possible to receive messages any time, any place, from just about anywhere in the world.

Sending Out an SOS?

A transmitter determines just how much power that little phone of yours will have. Keep in mind that in cell phones, all transmitters operate on relatively low frequency wavelengths; however, there is some variability in this regard. The transmitter works in concert with the phone antenna to convert vocal messages to sine waves and then send them out across radio waves.

Messages are picked up by cell towers and then directed to the right final destination. This is one reason why it is important to go with a well-established service provider. The more cell towers in your network, the easier it will be for you to get and maintain cell service. In most places, this is not much of an issue, as cell towers exist on every corner and in every conceivable place. In many towns, they are even painted or concealed so as to look just like the trees that surround them.

Of course, these towers are anything but God's own creation, and many have expressed concern about the EMF radiation they produce. When situated near schools or businesses, numerous public health concerns arise. Although they have yet to be substantiated with empirical research, a growing number of people are pushing for safeguards and precautions to protect against exposure to radiation.