Radio modulation modes

process of encoding information by varying properties of a periodic carrier waveform

encoding of information in a carrier wave by varying the instantaneous frequency of the wave

in amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to the waveform being transmitted

modulation pattern for conditioning communication signals for transmission

family of digital modulaton methods

refinement of amplitude modulation

spreading the frequency domain of a signal

picture transmission method used mainly by amateur radio operators

method of radio transmission, in which a sinusoidal carrier wave is switched on and off. Information is carried in the varying duration of the on and off periods of the signal, e.g. by Morse code

frequency mixing function in signal processing

classification of a radio signal

function describing the extremes of an oscillating signal

used in FM radio to describe the maximum difference between an FM modulated frequency and the nominal carrier frequency;sometimes mistakenly used as synonymous with frequency drift

Type of spark gap modulation

class of carrier modulation that is used in telecommunications transmission systems

type of amplitude modulation lacking a carrier

term in physics

transmission in which frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier frequency and the carrier level is reduced to the lowest practical level