frequency-dependent conductance
an apparatus that changes the wave length of a radio signal
of radio waves, the act of eliminating the frequencies above a certain range
having frequencies above those of audible sound
a varied mixture of sound waves that covers every frequency range
any of a series of musical tones whose frequencies are integral multiples of the frequency of a fundamental
the act of eliminating frequency waves lower than those of a specified band area
having frequencies below those of audible sound
the entire spectrum of electromagnetic frequencies used for communications
an electrical device that alters the frequency spectrum of signals passing through it
a device used to permit only waves of particular frequencies to pass