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modulation

modulation

3 6.6
Changing a radio wave's strength, frequency, or phase to send a signal
  • noun
  • /ˌmɒdʒʊˈleɪʃən/
  • Specialized
translation icon : modulación
  • In telecommunications, modulation is essential for efficiently transmitting information over various media.
  • amplitude modulation
  • frequency modulation
  • phase modulation

Examples

  • The use of several small engines allows thrust modulation to replace the control surfaces in the tail and rudder.

    Academic text (2001)
  • One is the new model with the neo-pulse frequency modulation system.

  • The mixing resembles the frequency modulation done by commercial radio stations.

    Academic text (1996)
  • In the previous section, the amplitude-modulation capability of the modulator was described.

    Academic text (1997)
  • Another responsibility of the laser driver is to supply a high-frequency modulation (HFM) current to the laser.

    Academic text (1996)
  • Thus, AOMs have amplitude-modulation characteristics suitable for PQE when they are driven by appropriate AOM drivers.

    Academic text (1997)
  • Optical disks use run-length-limited (RLL) modulation codes such as 0, 3 and 2, 7 to improve detection.

    Academic text (1996)
  • Using frequency modulation, the radio station broadcasts its signal clearly across long distances.

  • Modulation allows for the adaptation of the carrier wave's properties to ensure that the transmitted signal is clear.

Antonyms

to demodulate
  • Specialized
9.9

To take the original signal from a radio or wireless wave

Compounds

amplitude modulation
  • Specialized
1 5.3

A way of sending radio signals by changing a wave's height

phase modulation
  • Specialized
1 6.6

A way of sending information by changing the timing of a radio wave

frequency modulation
  • Specialized
4.7

A way of sending sound by changing how fast a radio wave vibrates

pulse modulation
  • Specialized
7.2

A way of changing a series of pulses, for example their length or strength, to send information

pulse-time modulation
  • Specialized
9.9

A way of sending information by changing the time between short signals

How Modulated

intermodulation
  • Specialized
9.6
amplitude modulation
  • Specialized
1 5.3
modulation
  • Specialized
3 6.6

Surface Forms

modulation singular
modulations plural

Morphology

modulation = modulate (semi-transparent) = modulate + ion

Regular nominalization of 'modulate', but the electronics sense (varying a carrier wave) is technical and may not be inferable by general learners.

Etymology

Modulation comes from Latin modus 'measure' and modulus 'small measure', which gives the image of changing a wave in small ways so it can carry a message. That's why in electronics modulation means altering a signal so it can send sound or information over the air or wires.