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FDMA Code Division - Multiple Access
The way the telecommunications industry works is, remember I opened the episode by saying it's basically a layered set of magic tricks. And then you stare at the Wikipedia article for a while to try and unpack each one. So we'll break it into parts, multiple access. Rather than being broadcast, so like a TV network, we have multiple endpoints that all want to communicate with each other using whatever the same communication medium is. Instead of sending analog signals, what if we were sending digital signals? If we are communicating using a digital signal instead of an analog signal, then actually we can parcel up the information into digital packets.