How does a wireless microphone system work?
First the microphone provides the audio signal. A conventional wired microphone converts sound waves into an electrical audio signal that travels to the PA system through a cable. A wireless microphone system goes one step further, and converts the audio signal created by the microphone to a radio signal (UHF/VHF) or an Infrared signal. Then the transmitter broadcasts that signal through an antenna. Transmitters are available in two basic types. One type, called a “body-pack” or “belt-pack” transmitter, is a small box about the same size as a TV remote control. The transmitter clips to the user’s belt or may be worn on the body. In the case of a handheld wireless microphone, the transmitter is built into the handle of the microphone, resulting in a wireless mic that is only slightly larger than a standard wired microphone. All wireless transmitters require a battery (usually a 9-volt alkaline type) to operate. The job of the receiver is to pick up the signal broadcast by the transmitte
