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Explain the two modes of long distance communication. |
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Answer» SOLUTION :The two hasic MODES of long distancecommunication are (1) point-to-point or guided or line communication (2) unguided or space communication, called BROADCAST. Line communication is a transmission system in a FIXED (land-hased) telecommunioation network that uses transmission Lines as a communication channel. Space commumication is a transmission system in a fixed (land-based) as well as mobile (maritime, aeronautical abd land-based) telecommunications network that uses the physical space surrounding us as the communication channel. Space communication is via radio waves in CERTAIN internationally agreed frequency bands. |
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