Encyclopedia > Transmitter

  Article Content

Transmitter

A transmitter is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, telecommunications, etc.

A transmitter usually has a power supply, an oscillator, a modulator and audio, IF (intermediate frequency) and RF (radio frequency) amplifiers. Sometimes a device, for example, a cell phone contains both a transmitter and a radio receiver or transceiver. The modulator is the device which piggybacks (or modulates) the signal information onto the carrier radio frequency which is broadcast.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Canadian Charter of Rights and Freedoms

... by the Canadian courts (art. 6(1) ECHR); limits on privacy rights as are accepted as in Canada (Article 8(2) ECHR: except such as is in accordance with the law and ...

 
 
 
This page was created in 29.6 ms