intermediate frequency
noun Radio.
the middle frequency in a superheterodyne receiver, at which most of the amplification takes place. Abbreviation: if
Origin of intermediate frequency
First recorded in 1920–25
Words nearby intermediate frequency
Example sentences from the Web for intermediate frequency
This is spoken of either as the “super-heterodyne” or as the “intermediate-frequency amplification” method of reception.
Letters of a Radio-Engineer to His Son |John MillsThe system of intermediate-frequency amplification solves the difficulty and we shall see how it does so.
Letters of a Radio-Engineer to His Son |John Mills
British Dictionary definitions for intermediate frequency
intermediate frequency
noun
electronics
the frequency to which the signal carrier frequency is changed in a superheterodyne receiver and at which most of the amplification takes place