CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio Infrared 4.3 Wireless Propagation Ground Wave Propagation Sky Wave Propagation Line-of-Sight Propagation 4.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 4.6 Recommended Reading and Web Sites Key Terms‚ Review Questions‚ and Problems Key Terms Review Questions
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Digital Communication We are now living in a generation where instead of writing a letter we will send an email and instead of making a phone call we will send a text; Digital communication has taken over. Digital Communication is any form of communication that happens through any digital media‚ For example: Twitter‚ text‚ you tube and Facebook. A recent example of how digital communication is taking over our language is Facebook. In 2004 Facebook was made global and now 9 years later‚ 1 in 7 people
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why is it important? The plenum is between the structural ceiling and the drop-down ceiling. The plenum is also under the raised floor. Horizontal cable travels through the plenum to the telecommunication outlet. What is the purpose of Riser cabling? Cable that is to be run between floors in non-plenum areas is rated as riser cable. Riser rated cable cannot be used where there is air flow in the space What is the purpose of horizontal cabling? Horizontal wiring connects telecommunications rooms
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which “served as a new promotional tool for recording artists‚ a new advertising vehicle for manufacturers‚ [and] a unique program format for cable operators” (Benjack 280). For most of the 1980s MTV remained an outlet for performers to simply get their new music noticed and attract new fans with creative videos. One of the earliest and greatest cable success stories; MTV was established by Warner Amex Satellite Entertainment Company (WASEC) after extensive marketing research. Originally music
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power satellites which required larger dishes. How DTH Work:- Following are the simplified steps on how DTH works: 1. Tata Sky uplinks all channels from broadcasters to its satellite (INSAT 4A). 2. The satellite sends these channels in digital format to the minidish fixed outside your home. 3. The minidish relays the channels to the digicomp which decodes the channels and sends them to your television‚ giving you an incomparable television screening experience with DVD quality picture
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have access to Cable TV or Satellite TV‚ including 78 million households which are DTH subscribers. Digital TV households have grown by 32% since 2013 due to migration from terrestrial and analog broadcasts. Digital TV penetration is at 64% as of September 2014. The growth in digital broadcast has been due to the introduction of a multi-phase digitization policy by the Government of India. An ordinance was introduced by the Govt. of India regarding the mandatory digitization of the Cable Services. The
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as a CNA‚ certified nursing assistant‚ everything we did we wrote into charts. In 1995‚ I worked for a hospital when they went digital. I remember how many of the older nurses would complain and part of the time I would have to help them enter in their information. Since 1998 I have been working in the digital automotive world. When I first started with a digital software company I remember thinking‚ “WOW‚ I’m cutting edge”. The computer was not just a tool that allowed you to enter data and
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And Service Processing 32 Industry Life Cycle 37 Chapter 3 39 Global Scenario 39 Global 39 Global Players 39 Total Companies Profiled: 72 (Including Divisions/Subsidiaries - 80) 39 Global Major Players 40 Cable Vs. DTH - An Overview Of The World Scenario 41 PPV (Pay-Per-View) 47 Opportunities For Indian Vendors 49 Chapter 4 50 Financial Analysis 50 Revenue Structure: 50 Cost Structure: 51 Chapter 5 54 PEST Analysis: 54
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Play Marketing Bundles combine Internet service; cable TV and often phone service from a single provider and can be a better deal than buying each service separately. Telecommunications companies love them because they boost revenue per customer and lock users into long-term contracts‚ typically one to two years. Add-on fees can quickly turn a cheap bundle into a not-so-hot deal. For example‚ Time Warner Cable recently advertised digital cable TV with 200-plus channels (HD included) plus speedy
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Can We Bridge the Digital Divide? Jessica Montgomery INF 103: Computer Literacy Instructor Murray Denton April 15‚ 2013 What is the Digital Divide? The Digital Divide is a line that separates those that have access to technologies such as computers‚ cell phones and internet‚ from those that have no access or limited access to such technologies. This divide is mostly prevalievnt in third world countries‚ but is not uncommon in the United States. While the United States has the technology
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