What is frequency spectrum network?

Frequency spectrum of a signal is the range of frequencies contained by a signal .

Filters. A continuous group, or range, or wavelengths with an upper limit and a lower limit . In analog terms, bandwidth and channel width are defined as a range of frequencies. The ITU-T defines standard optical transmission windows in bands of wavelengths.

Frequency is the number of radio waves that can travel during a single second , and is expressed in terms of Hertz (Hz). Since the speed of radio waves is constant, low frequencies have long wavelengths while high frequencies have short wavelengths.