Carrier Frequency

The frequency of an unmodulated transmitter output.

Information can be imposed by varying the signal strength, varying the base frequency, varying the wave phase, or other means. This variation is called modulation.

Authorised Carrier Frequency

A specific carrier authorized for use, from which the actual carrier frequency is permitted to deviate, solely because of frequency instability, by an amount not to exceed a given frequency tolerance.

See also: Amplitude Modulation, Frequency Deviation, Frequency Modulation, Intermediate Frequency.

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Subjects: Electronics