Communication Systems Quiz

Signal attenuation is proportional to the square of the ______ between the transmitter and receiver.

Noise is random, undesirable electronic energy that enters the communication system and interferes with the transmitted ______.

The telephone is an example of ______ duplex communication.

Channel bandwidth refers to the range of frequencies required to transmit the desired ______.

Today, virtually the entire frequency spectrum between approximately 30 kHz and 300 MHz has been ______ for.

Communication engineering is devoted to making the best use of that finite ______.

Spectrum management is provided by agencies set up by the United States and other countries to control ______ use.

Infrared radiation is produced by any physical equipment that generates ______, including our bodies.

Just above the infrared region is the visible spectrum we refer to as ______.

Ultraviolet is not used for ______ communication.