1 / 6

Communication System

Communication System. Joey Porter. Input . A sound wave is produced with a frequency of 5 Hz - 20 kHz. A microphone converts the sound wave into an electrical signal .

sabina
Télécharger la présentation

Communication System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Communication System Joey Porter

  2. Input • A sound wave is produced with a frequency of 5 Hz - 20 kHz. • A microphone converts the sound wave into an electrical signal. • The electrical wave is used to encode or modulate a high-frequency "carrier" radio wave. The carrier wave itself does not include any of the sound information until it has been modulated.

  3. Process • The electrical wave is used to encode or modulate a high-frequency "carrier" radio wave. The carrier wave itself does not include any of the sound information until it has been modulated. • The carrier wave can either be amplitude modulated (AM, top) by the electrical signal, or frequency modulated (FM, bottom). • The signal is transmitted by a radio broadcast tower.

  4. Output • The signal is transmitted by a radio broadcast tower.

  5. Feedback • Your radio contains an antenna to detect the transmitted signal, a tuner to pick out the desired frequency, a demodulator to extract the original sound wave from the transmitted signal, and an amplifier which sends the signal to the speakers. The speakers convert the electrical signal into physical vibrations (sound).

  6. The End

More Related