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Communications system
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=== Transmitter === Once the source signal has been converted into an electric signal, the transmitter will modify this signal for efficient transmission. In order to do this, the signal must pass through an electronic circuit containing the following components: # [[Noise filter]] # [[Analog-to-digital converter]] # Encoder # [[Modulation|Modulator]] # [[Signal amplifier]] After the signal has been amplified, it is ready for transmission. At the end of the circuit is an antenna, the point at which the signal is released as electromagnetic waves (or electromagnetic radiation).
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