Band-pass filter

a filter that attenuates all frequencies except those of a specific band, which it amplifies.
(electronics) a filter that transmits only those currents having a frequency lying within specified limits Compare high-pass filter, low-pass filter
an optical device, consisting of absorbing filters, for transmitting electromagnetic waves of predetermined wavelengths


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    a small flag or streamer fastened to a lance, masthead, etc. a narrow scroll, usually bearing an inscription. (especially in Renaissance architecture) a sculptured band, as on a building, adapted to receive an inscription. Historical Examples Corti made the passage safely, and in the road beyond the moat halted, and drove the staff of his […]

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