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MODULATION PURPOSE 1. To adapt the signals to the transmitting channel 2. To adapt the signal to the receiving and transmitting circuits 3. To distinguish the various signals there are two types of modulation: · ANALOGIC MODULATION · DIGITAL MODULATION In my opinion the most important types of modulation are amplitude end frequency modulation. Infact these two tecnologies are used in analogue and digital modulation (segue nel file da scaricare)