Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
digital modulation scheme
|
| gptkbp:abbreviation |
gptkb:AM
|
| gptkbp:advantage |
higher power consumption
lower spectral efficiency simple receiver design wide coverage area |
| gptkbp:amendedBy |
amplitude of carrier wave
|
| gptkbp:contrastsWith |
gptkb:phase_modulation
frequency modulation |
| gptkbp:demodulatedBy |
envelope detector
synchronous detector |
| gptkbp:enables |
transmission of audio signals
transmission of video signals |
| gptkbp:form |
modulation envelope
modulation index |
| gptkbp:hasVariant |
single-sideband modulation
vestigial sideband modulation double-sideband amplitude modulation |
| https://www.w3.org/2000/01/rdf-schema#label |
Amplitude modulation
|
| gptkbp:introducedIn |
1900
|
| gptkbp:inventedBy |
gptkb:Reginald_Fessenden
|
| gptkbp:keepsConstant |
phase of carrier wave
frequency of carrier wave |
| gptkbp:regulates |
gptkb:International_Telecommunication_Union_(ITU)
gptkb:Federal_Communications_Commission_(FCC) |
| gptkbp:relatedTo |
quadrature amplitude modulation
pulse amplitude modulation |
| gptkbp:usedFor |
amateur radio
emergency communications longwave broadcasting medium wave broadcasting shortwave broadcasting |
| gptkbp:usedIn |
gptkb:analog_television
gptkb:radio_station gptkb:airband_radio military communications radar systems telecommunications amateur radio citizens band radio aviation communications remote controls marine communications public address systems wireless microphones early television sound transmission seismic data transmission |
| gptkbp:vulnerableTo |
gptkb:music
|
| gptkbp:bfsParent |
gptkb:Analog_stereo_audio
gptkb:Radiowaves |
| gptkbp:bfsLayer |
7
|