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Modulation is where an electronic signal (base) is combined with another electronic signal (carrier).
The base could be audio, video or digital. The carrier is the frequency that a receiver (radio or television) is tuned to.
The modulated wave is the result of this combination.
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∙ 11y ago
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How do electromagnetic waves carry sound as electrical signals?
The electromagnetic wave is "modulated" (changed) to represent the signal. For example, in AM (amplitude modulation), the strength (amplitude) of the wave is increased or decreased, according to the signal.
What does wave floater means?
meaning of wave floater
How can a carrier wave carry information?
A carrier wave is a waveform (usually sinusoidal) that is modulated with an input signal for the purpose of conveying information. Its purpose is usually either to transmit the information through space as an electromagnetic wave (as in radio communication), or to allow several carriers at different frequencies to share a common physical transmission medium by frequency division multiplexing.
What is the meaning of AM in the wave length?
AM means 'amplitude modulation'
What is the meaning of the mechanical wave?
a mechanical wave also called material wave is a wave that needs a medium to travel. mechanical waves cause a local uscillation of material. The oscillation of material.
What are two essential components of a modulated wave?
amplitudefrequencyphase
What is the meaning of suppressed carrier in am?
radio an amplitude-modulated wave in which only the sidebands are transmitted, the carrier being removedhttp://dictionary.reference.com/browse/suppressed+carrier+modulation
What is demodulation in communication?
recovering the information content from modulated carrier wave
What parameter of a sine wave carrier can be modulated?
Amplitude, Frequency and Phase
What do you understand by modulation?
Modulation is a word applied to anything that varies in level. Brake pads are modulated in an anti lock braking system. The human voice can be modulated whilst singing to give a pleasing sound An audio signal can be superimposed upon a carrier wave in broadcasting. The carrier wave is amplitude modulated by the audio signal.
What is difference between modulated wave and carrier wave?
Carrier Wave: A carrier wave is a high-frequency electromagnetic wave that is used as the "carrier" or the base signal in a modulation process. It is typically a pure sine wave with a constant frequency and amplitude. The carrier wave by itself does not carry any information; it serves as a vehicle to carry the information from one location to another. In AM and FM radio broadcasting, the carrier wave is the primary signal transmitted by the radio station. Modulated Wave: A modulated wave is the result of combining the carrier wave with an information signal, such as an audio signal or data. Modulation is the process of varying the characteristics of the carrier wave (either its amplitude or frequency) in accordance with the information signal. There are two common types of modulation: Amplitude Modulation (AM) and Frequency Modulation (FM). In AM, the amplitude of the carrier wave is varied in proportion to the amplitude of the information signal. This variation encodes the information onto the carrier wave. In FM, the frequency of the carrier wave is varied in proportion to the amplitude of the information signal. This variation encodes the information onto the carrier wave. The modulated wave contains the information that needs to be transmitted, and it can be demodulated at the receiving end to retrieve the original information.
Why the voltage signals created by microphone are modulated before tranmitting them throgh radio waves?
The signal from the microphone isn't modulated. The radio wave is modulatedwith the microphone signal. 'Modulation' just means the process of addinginformation to the bare radio wave.
What is continuous wave?
In communications, a continuous frequency voltage or electromagnetic wave capable of being modulated or impressed with a second signal which carries the information to is transmitted.
What is continuous wave power?
In communications, a continuous frequency voltage or electromagnetic wave capable of being modulated or impressed with a second signal which carries the information to is transmitted.
What is difference between lifi and wifi?
In wifi, modulated signal is radio wave where as life modulated signal is light. It is visible electromagnetic spectrum and has higher bandwidth than wifi but has Line of sight limitation.
What is the difference between am raido and FM radio?
A: AM radio is an Amplitude Modulation transmission . Meaning it has fix frequency but it is modulated by the signal. FM Frequency Modulation the frequency is modulated by the signal
How do electromagnetic waves carry sound as electrical signals?
The electromagnetic wave is "modulated" (changed) to represent the signal. For example, in AM (amplitude modulation), the strength (amplitude) of the wave is increased or decreased, according to the signal.
