| Wireless phones are hand-held phones with built-in | | | | phone.Then the base station sends out radio waves |
| antennas, often called cell, | | | | that are detected by a receiver in your |
| mobile, cellular or PCS phones. These phones are | | | | telephone, where the signals are changed back into |
| popular with callers because they can | | | | the sound of a voice. The Federal |
| be carried easily anywhere in the world.Wireless | | | | Communications Commission (FCC) and the Food |
| phones are two-way radios. When you talk, it picks up | | | | and Drug Administration (FDA) each |
| your voice and converts | | | | regulate wireless phones.FCC ensures that all wireless |
| the sound to radio frequency energy or radio waves. | | | | phones sold in the United States follow safety |
| The radio waves travel all through | | | | guidelines |
| the air until they reach a receiver at a nearby base | | | | that limit radio frequency (RF) energy. FDA monitors |
| station.The base station then sends your call through | | | | the health effects of wireless |
| the phone network until it reaches the | | | | phones. Each agency has the authority to take action |
| person you are calling. The message travels through | | | | if a wireless telephone produces |
| the telephone network until it | | | | hazardous levels of RF energy. |
| reaches a base station close to your cellular wireless | | | | |