intermediate frequency

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intermediate frequency

[‚in·tər′mēd·ē·ət ′frē·kwən·sē]
The frequency produced by combining the received signal with that of the local oscillator in a superheterodyne receiver. Abbreviated i-f.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

intermediate frequency (IF)

In superheterodyne receivers, a frequency resulting from the combination of the received modulated carrier frequency and the locally generated oscillator frequency. An intermediate frequency is so called because it lies between the modulated radio frequency and the audio frequency.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
However, the torque magnitude has little impact on the intermediate frequency and high frequency intervals.
Now that we've chosen an acceptable Intermediate Frequency we are in a position to select a mixer.
The R2S15500SP converts Sound Intermediate Frequency (SIF) into digital data processing demodulation.
In addition, the chip cuts the external component count, and therefore cost, by eschewing IF (Intermediate Frequency) filters, ceramic capacitors, and varicaps.
The system provides two receive and one transmit channel at industry standard 213.33 megasamples per second (MSPS) supporting a 160-MHz intermediate frequency (IF) with bandwidths in excess of 80 MHz.
The low-IF (Intermediate Frequency) radio receiver architecture employed in this design, adapted from high-efficiency pager technology, offers lower power consumption and better immunity to interference than direct conversion receivers.
Either the intermediate frequency (IF) or the RF signal is mixed with the LO signal, resulting in the frequency up- or down-conversion operation.
Like all members of the MSM6xxx family, the MSM6280 solution incorporates QUALCOMM's radioOne Zero Intermediate Frequency (ZIF) architecture, which eliminates the need for Intermediate Frequency (IF) components.
Also, the absence of intermediate frequency noise enables much simpler RF planning inside the complex environment of a cell phone.
There are 10 digital signal processor (DSP) chips inside a Symphony radio, of which nine are special purpose co-processors supporting a 24-bit core unit that contains the radio frequency (RF) front-end and intermediate frequency (IF) analog interface.

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