The frequency at which the gain of an amplifier or filter has fallen by 3dB.
Highest or lowest frequency in the pass band of a filter, highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwid
the frequency point above or below that a filter strongly attenuates a signal. (Usually, the signal's output level at the cut-off frequency is 3 dB below its input level.) In a lowpass filter, a high cut-off frequency allows most of a sound through and generally produces a bright sound, while a low cut-off frequency blocks most of the sound and produces a muted or plain sound. See highpass filter, lowpass filter.
The point where a lowpass or highpass filter makes a transition from the passband to the stopband. Normally given as a -3 dB point. Also called FC.
the highest frequency that can pass through a filter without attenuation
The upper passband edge in lowpass filters or the lower passband edge in highpass filters closest to the stop band. Lark normally uses the point at which the VSWR equals 1.5/1.
The frequency, above which other than the TEM mode may occur. The transmission characteristics of cables above their cutoff frequency may be unstable.
The frequency in a filter or other circuit beyond which signals attenuate abruptly.
The frequency at which the gain or amplification is unity.
The frequency that marks the edge of the filters passband and the beginning of the transition to the stopband, usually -3dB relative to filters reference frequency.
The frequency at which a filter is set to operate.