demodulator
Retrieves original signal
A demodulator is an electronic device that extracts the original signal from a modulated carrier wave—reversing what a modulator does.
Radio receivers contain demodulators that recover audio from broadcast signals.
In computing, a modem (modulator-demodulator) converts digital data to analog for transmission, then demodulates incoming signals back to digital form.
One who accepts transmission
- circuitClosed electrical pathway
- tunerDevice selecting broadcast frequencies
- filterPorous separation device
- transducerEnergy form converter
chip · amplifier · oscillator · detector · diode · capacitor · IC · mixer
Extracting meaning from symbols
- demodulationRecovering signal from carrier
- carrierOne that transports
- waveformGraphed oscillation pattern
- filteringSelective passage of elements
bandwidth · conversion · analog · digital · baseband · quadrature · phase · amplitude
Pre-midday designation
- FMCarrier wave frequency variation
- shortwaveHigh-frequency radio band
- tuningAdjusting pitch accuracy
- squelchForcibly silence or suppress
stereo · broadcast · audio · interference · noise · distortion · selectivity · sensitivity
receiver
One who accepts transmission
- circuitClosed electrical pathway
- tunerDevice selecting broadcast frequencies
- filterPorous separation device
transducer · chip · amplifier · oscillator · detector · diode · capacitor · IC · mixer · crystal
decoding
Extracting meaning from symbols
- demodulationRecovering signal from carrier
- carrierOne that transports
- waveformGraphed oscillation pattern
filtering · bandwidth · conversion · analog · digital · baseband · quadrature · phase · amplitude · frequency
AM
Pre-midday designation
squelch · stereo · broadcast · audio · interference · noise · distortion · selectivity · sensitivity · fidelity
video
Recorded moving imagery
chroma · luminance · cable · satellite · tuner · descrambler · HDTV
modem
Digital-to-analog signal converter
- baudSignal change frequency unit
- PSKPhase-shift keying
- constellationNamed pattern of celestial bodies
symbol · equalization · channel · packet · protocol · Ethernet · DSL · WiFi · Bluetooth · LTE
- radioFM radio, crystal set, AM radio, radio station, radio broadcast
- Receiversradio receiver, wireless receiver, satellite receiver, audio receiver, stereo receiver
- audio effectsreverb, delay, flanger, chorus effect, phaser
- fiber opticsoptical fiber, fiber optics, fiber cable, cladding, optical cable
- radio equipmenttransceiver, transmitter, power supply, mobile radio, base station
- RF electronicspower amplifier, diplexer, duplexer, circulator, coax cable
demodulatormodulator
Device that varies signals
encoder · coder · transmitter · upconverter · multiplexer
module, modulate, modulation, modular, modulator, modularity, modulations, frequency modulation