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Modulation
Modulation - In earlier times, the most widely used form of communication was a system based on the transmission of a continuous-wave (CW) signal. With this system, the signal was interrupted periodically (Morse code) to produce a coded message. The CW systems required tremendous training..
Modulation
In earlier times, the most widely used form of communication was a system based on the transmission of a continuous-wave (CW) signal. With this system, the signal was interrupted periodically (Morse code) to produce a coded messag..
Pulse Modulation
Pulse Modulation - In amplitude modulation and frequency modulation, the modulation was done by sinusoidal signals. In pulse modulation, short pulses may do the modulation of a radio-frequency carrier. The simplest of these is the conventi..
Frequency Modulation
In frequency modulation, the frequency of the carrier wave is modified in accordance with the amplitude of the modulating wav..
Modulation Factor
Modulation Factor - The ratio of change of amplitude of carrier wave to the amplitude of normal carrier wave is called the modulation factor ..
Modulation Factor - The ratio of change of amplitude of carrier wave to the amplitude of normal carrier wave is called the modulation factor ..Frequency Modulation
Frequency Modulation - In frequency modulation, the frequency of the carrier wave is modified in accordance with the amplitude of the modulating wave. The amplitude of the carrier remains unchanged at all times. In other words, the amplitude of the modulated ..
Frequency Modulation - In frequency modulation, the frequency of the carrier wave is modified in accordance with the amplitude of the modulating wave. The amplitude of the carrier remains unchanged at all times. In other words, the amplitude of the modulated ..Amplitude Modulation
Amplitude Modulation - When the amplitude of high frequency carrier wave is changed in accordance with the intensity of the signal, it is called amplitude modulation. In amplitude modulation, only the amplitude of the carrier wave is changed in accordance with the inte..
Amplitude Modulation - When the amplitude of high frequency carrier wave is changed in accordance with the intensity of the signal, it is called amplitude modulation. In amplitude modulation, only the amplitude of the carrier wave is changed in accordance with the inte..Amplitude of Modulation
In this type if modulation, w c and q are kept constant. The amplitude E c of the carrier wave is varied in accordance with the modulating wav..
Amplitude Modulation
When the amplitude of high frequency carrier wave is changed in accordance with the intensity of the signal, it is called amplitude modulation..
Need for Modulation
Need for Modulation - The velocity of electromagnetic waves is 3 x 10 8 ms - 1 . On the other hand, the velocity of sound waves cannot be used to transmit intelligence to far off places. Only electromagnetic waves can be made to do this. Modulation is extremely necessary in comm..
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