##### Intermediate Frequency A [[frequency]] to which a [[carrier]] wave is shifted as an intermediate step in [[radio transmission]]  or [[reception]]. The intermediate frequency is created by mixing the carrier signal with a local [[oscillator]] signal in a process called [[Superheterodyne|heterodyning]], resulting in a signal at the difference or [[beat frequency]]. Intermediate frequencies are used in [[superheterodyne]] radio receivers, in which an incoming signal is shifted to an IF for [[amplification]] before final [[detection]]  is done. >Covered in: [[C203 Week 2#Mixer|C203]] >Mentioned in: >References: [[WP Intermediate Frequency|🌍]] >Required by: > >Related to: