Spectrum

Spread spectrum

Initially devised for military use, this radio transmission technology "spreads" information over greater bandwidth than necessary to resist jamming and other interference. (Cingular)

Spread-spectrum techniques are methods in which energy generated at a single frequency is deliberately spread over a wide band of frequencies. This is done for a variety of reasons, including increasing resistance to natural interference or jamming and to prevent hostile detection.

History

Spectrum cap

A limit to the allocated spectrum designated for a specific service. (Cingular)

Spectrum assignment

Federal government authorization for use of specific frequencies or frequency pairs within a given allocation, at specific geographic locations. (Cingular)