What is amplitude modulation? Explain the block diagram of a practical AM transmitter
Answers
Hey,
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the message signal being transmitted.
The working of AM transmitter can be explained as follows....
The audio signal from the output of the microphone is sent to the pre-amplifier, which boosts the level of the modulating signal.
The RF oscillator generates the carrier signal.
Both the modulating and the carrier signal is sent to AM modulator.
Power amplifier is used to increase the power levels of AM wave. This wave is finally passed to the antenna to be transmitted.
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Answer:
What is amplitude modulation? Explain the block diagram of a practical AM transmitter
Explanation:
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the message signal being transmitted.
Amplitude modulation is a process by which the wave signal is transmitted by modulating the amplitude of the signal. It is often called AM and is commonly used in transmitting a piece of information through a radio carrier wave.
The main difference between both modulations, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier wave is modified according to the data.
The amplitudes in the sidebands changes but the radio carrier frequency remains constant. The character data from the terminal is charges to audio tones.
Hence explained the modulation.
