A frequency to which a signal is converted for ease of handling. Receives its name from the fact that it is an intermediate step between the initial and final conversion or detection stages.
The signal obtained by heterodyning two signals of different frequencies. In superheterodyne receivers, the intermediate frequency is the difference between the incoming signal frequency and the local oscillator frequency.
In receivers, that frequency to which a selected incoming signal is converted by heterodyne with the local oscillator signal to which the remaining circuits of the receiver can be precisely tuned regardless of the frequency of the desired incoming signal.
Intermediate frequency is the difference between the incoming frequency and oscillator frequency. The output of oscillator is the intermediate frequency.
The frequency or band of frequencies resulting from mixing RF with an LO. Usually the IF is lower than the RF in frequency, which facilitates further amplication and processing.
frequency used in the demodulation process (see Dual-conversion and Triple-conversion)
The name of the signal between the two mixers in a two mixer receiver. It also used to identify one of the ports of a mixer.
The desired output frequency from the down conversion mixing process, which is normally the difference between the LO and signal frequencies, i.e., (LO-RF) or (RF-LO).
Frequency to which the RF signal is shifted for intermediate processing before it is down-converted to the baseband.
Refers to the resulting signal in a supernet receiver after the incoming carrier is mixed with the oscillator.
A lower frequency to which an RF echo is converted for ease of amplification.
1. (Abbreviated IF.) The beat frequency used in heterodyne reception resulting from the combination of the received radio-frequency signal and a locally generated signal. The intermediate-frequency signal is usually the difference between the above signals and is employed to avoid the difficulty of the direct amplification of radio-frequency signals, which is technically more difficult to accomplish. 2. See IF signal.
An intermediate frequency (IF) is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. It is the beat frequency between the signal and the local oscillator in a radio detection system. IF is also the name of a stage in a superheterodyne receiver.
