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Assalamu Alaikum,
I hope everyone is very good. I came to you about something about electronics. Let’s start talking without talking. We will know about the logic gate today.What is the modulation: The method used to mix audio frequencies with high frequency is called modulation.
Three types of modulation:
A. Amplitude Modulation.
B.Frietary Modulation.
C.Puls Modulation.
What is Demodulation: The process that separates the original modulating signal is called demodulation.
Amplitude Modulation: Modularization of the Empirical Change in Carrier Signals for Modulation Frequency
Either call him amplitude modulation.
Amplitude modulation can be applied in two ways:
1 / radio signal transmissions.
2 / TV system to transmit photos.
Carrier Wave Key: A highway frequency radius produced from the F. oscillator is called a carrier wave.
It is used to transport the audio or video signal from the sender’s edge to the customer end.
Side band: Unmodulated carrier wave is modulated with signal wavelength when two new ones
Frequency is generated. This new frequency is called side band.
Frequency Modulation: Modularization of the frequency of the frequency of the carrier signal in the frequency of the modulation frequency
Is it called Frequency Modulation?
What is the phase modulation: phase modification of the carrier signal in the modulation frequency modulation
Either call him phase modulation.
Modulation Index key: Amplitude of the modulation signal and amplitude of unmodified carrier signals
The ratio is called modulation index.
Modulation requirements:
1 / antenna length can be reduced.
2 / number of transmitting channels can be increased.
3 / Signal can be sent to a remote location.
4 / Signal privacy can be done.
5 / Wireless communication can be made.
6 / band width can be increased arbitrarily.
The difference between Amplitude Modulation and Frequency Modulation.
Amplitude Modulation Frequency Modulation
1.AM’s bandwidth is small. 1.FM bandwidth is big.
2.am intermediate interference and noise. 2.FM interferris and low noise.
3.SNR less 3.SNR more
4. Bandwidth 20 KiloHortz 4. Bandwidth 100 KiloHortz
5. Accepted on the band band. 5. Getting into the band is not accepted.
6.am Range more. 6.FM Range less
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