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- (en)
- How the bandpass filter selects a single radio signal S1 from all the radio signals S2, S3 ... received by the antenna. From top, the graphs show the voltage from the antenna applied to the filter Vin, the transfer function of the filter T, and the voltage at the output of the filter Vout as a function of frequency f. The transfer function T is the amount of signal that gets through the filter at each frequency: (en)
- The frequency spectrum of a typical radio signal from an AM or FM radio transmitter. It consists of a component at the carrier wave frequency fC, with the modulation contained in narrow frequency bands called sidebands just above and below the carrier. (en)
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