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- Armstrong_phase_modulator abstract "In 1933, Edwin H. Armstrong patented a method for generating frequency modulation of radio signals. The Armstrong method generates a double sideband suppressed carrier signal, phase shifts this signal, and then reinserts the carrier to produce a frequency modulated signal.Frequency modulation generates high quality audio and greatly reduces the amount of noise on the channel when compared with amplitude modulation. Early broadcasters used amplitude modulation because it was easier to generate than frequency modulation and because the receivers were simpler to make. The electronics theory indicated that a frequency modulated signal would have infinite bandwidth; for an amplitude modulated signal, the bandwidth is approximately twice the highest modulating frequency.Armstrong realized that while a frequency modulated signal would have an infinite bandwidth, only the first few sets of sidebands would be significant; the rest could be ignored. An amplitude modulated voice channel bandwidth would be approximately 6 kilohertz; a common frequency modulated voice channel bandwidth could be 15 kilohertz.".
- Armstrong_phase_modulator wikiPageID "20959696".
- Armstrong_phase_modulator wikiPageRevisionID "597207588".
- Armstrong_phase_modulator hasPhotoCollection Armstrong_phase_modulator.
- Armstrong_phase_modulator subject Category:Broadcast_engineering.
- Armstrong_phase_modulator subject Category:Radio_modulation_modes.
- Armstrong_phase_modulator subject Category:Radio_technology.
- Armstrong_phase_modulator type Abstraction100002137.
- Armstrong_phase_modulator type Attribute100024264.
- Armstrong_phase_modulator type Manner104928903.
- Armstrong_phase_modulator type Property104916342.
- Armstrong_phase_modulator type RadioModulationModes.
- Armstrong_phase_modulator comment "In 1933, Edwin H. Armstrong patented a method for generating frequency modulation of radio signals. The Armstrong method generates a double sideband suppressed carrier signal, phase shifts this signal, and then reinserts the carrier to produce a frequency modulated signal.Frequency modulation generates high quality audio and greatly reduces the amount of noise on the channel when compared with amplitude modulation.".
- Armstrong_phase_modulator label "Armstrong phase modulator".
- Armstrong_phase_modulator sameAs m.059__r9.
- Armstrong_phase_modulator sameAs Q4794022.
- Armstrong_phase_modulator sameAs Q4794022.
- Armstrong_phase_modulator sameAs Armstrong_phase_modulator.
- Armstrong_phase_modulator wasDerivedFrom Armstrong_phase_modulator?oldid=597207588.
- Armstrong_phase_modulator isPrimaryTopicOf Armstrong_phase_modulator.