intermediate frequency

noun

, Radio.

1. the middle frequency in a superheterodyne receiver, at which most of the amplification takes place. : if

intermediate frequency

noun

1. electronics the frequency to which the signal carrier frequency is changed in a superheterodyne receiver and at which most of the amplification takes place

Word History and Origins

Origin of intermediate frequency¹

First recorded in 1920–25

Example Sentences

This is spoken of either as the “super-heterodyne” or as the “intermediate-frequency amplification” method of reception.

From Project Gutenberg

The system of intermediate-frequency amplification solves the difficulty and we shall see how it does so.

From Project Gutenberg

Related Words

• high frequency