Transcription of CHAPTER TRANSMISSION MEDIA - INTRANET
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CHAPTER TRANSMISSION MEDIA - INTRANET
4/5/03 10:54 AM Page 93. CHAPTER 4. TRANSMISSION MEDIA . Guided TRANSMISSION MEDIA Twisted Pair Coaxial Cable Optical Fiber Wireless TRANSMISSION Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio Infrared Wireless Propagation Ground Wave Propagation Sky Wave Propagation Line-of-Sight Propagation Line-of-Sight TRANSMISSION Free Space Loss Atmospheric Absorption Multipath Refraction Recommended Reading and Web Sites Key Terms, Review Questions, and Problems Key Terms Review Questions Problems 4/5/03 10:54 AM Page 94. 94 CHAPTER 4 / TRANSMISSION MEDIA . KEY POINTS. The TRANSMISSION MEDIA that are used to convey information can be classi- fied as guided or unguided. Guided MEDIA provide a physical path along which the signals are propagated; these include twisted pair, coaxial cable, and optical fiber.
96 CHAPTER 4 / TRANSMISSION MEDIA The three guided media commonly used for data transmission are twisted pair, coaxial cable, and optical fiber (Figure 4.2). We examine each of these in turn.
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