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2. Carson bandwidth rule - Wikipedia

   en.wikipedia.org/wiki/Carson_bandwidth_rule

   In telecommunication, Carson's bandwidth rule defines the approximate bandwidth requirements of communications system components for a carrier signal that is frequency modulated by a continuous or broad spectrum of frequencies rather than a single frequency. Carson's rule does not apply well when the modulating signal contains discontinuities ...

3. Analog transmission - Wikipedia

   en.wikipedia.org/wiki/Analog_transmission

   Analog transmission. Analog transmission is a transmission method of conveying information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that information. It could be the transfer of an analog signal, using an analog modulation method such as frequency modulation (FM) or amplitude modulation ...

4. Frequency modulation - Wikipedia

   en.wikipedia.org/wiki/Frequency_modulation

   Frequency modulation ( FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing . In analog frequency modulation, such as radio broadcasting, of an audio signal representing voice or music, the ...

5. Line-of-sight propagation - Wikipedia

   en.wikipedia.org/wiki/Line-of-sight_propagation

   Line-of-sight propagation. Line-of-sight propagation is a characteristic of electromagnetic radiation or acoustic wave propagation which means waves can only travel in a direct visual path from the source to the receiver without obstacles. [1] Electromagnetic transmission includes light emissions traveling in a straight line.

6. Frequency modulation synthesis - Wikipedia

   en.wikipedia.org/wiki/Frequency_modulation_synthesis

   Frequency modulation synthesis (or FM synthesis) is a form of sound synthesis whereby the frequency of a waveform is changed by modulating its frequency with a modulator. The (instantaneous) frequency of an oscillator is altered in accordance with the amplitude of a modulating signal. FM synthesis can create both harmonic and inharmonic sounds.

7. Phase modulation - Wikipedia

   en.wikipedia.org/wiki/Phase_modulation

   e. Phase modulation ( PM) is a modulation pattern for conditioning communication signals for transmission. It encodes a message signal as variations in the instantaneous phase of a carrier wave. Phase modulation is one of the two principal forms of angle modulation, together with frequency modulation . In phase modulation, the instantaneous ...