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Reply To: THANX LJ


PCM-Pulse Code Modulation is a process in which an analogue signal is encoded into a digital bit stream. The analogue is first sampled, then quantized and finally encoded into a bit stream. The most common version of PCM enables one voice circuit to be represented by a 64Kbps stream.

The term Microwave describes electromagnet radiation with the frequency range of 890MHz to 30GHz.