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frequency comparison table
Subject has acronym has definition
fundamental frequency The lowest characteristic frequency of oscillation of a dynamical system.
gyrofrequency The frequency with which an electron or other charged particle executes spiral gyrations in moving across a magnetic field.
harmonic overtone Any integral multiple of the fundamental frequency
Intermediate FrequencyIFThe beat frequency between the signal and the local oscillator in a radio detection system.
Larmor frequency The frequency of precession of a charged particle orbiting in a uniform magnetic field. It is equal to eH / 4πme, where e is the electron charge, me is the electron mass, and H is the magnetic field strength.

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