{"id":1164,"date":"2017-02-22T18:33:01","date_gmt":"2017-02-22T18:33:01","guid":{"rendered":"http:\/\/headendinfo.com\/?p=1164"},"modified":"2020-04-26T07:44:35","modified_gmt":"2020-04-26T07:44:35","slug":"sdv-switched-digital-video-catv","status":"publish","type":"post","link":"https:\/\/headendinfo.com\/sdv-switched-digital-video-catv\/","title":{"rendered":"What Is SDV Or Switched Digital Video For Digital Headend Or CATV"},"content":{"rendered":"\n
\"sdv<\/figure><\/div>\n\n\n\n

Introduction<\/h2>\n\n\n\n

Cable Tv companies are having large bandwidth available to deliver the different services. These services are Cable Tv Service, Internet service , Video On Demand , Radio Services and Digital Phone Service. Cable Tv companies stream all the digital video channels into the different digital streams and sends these streams into the field.  While SDV have its different mechanism of broadcasting videos to the customer end.<\/p>\n\n\n\n

What Is SDV<\/h2>\n\n\n\n

SDV stands for Switched Digital Video<\/strong>. As discussed above a Digital Headend<\/a><\/span> stream all the tv services into the different streams and then transmit the signal in the field. It means that it is transmitting all the tv services simultaneously in the field using Optical Fiber Cable<\/span><\/a> and Coaxial cable. Again it means that it is consuming the bandwidth of all channels weather subscribers are viewing all channels or not.<\/p>\n\n\n\n

In other words we need to transmit all the tv services to each and every Subscriber even he watch it not. So it consume more bandwidth. There is wastage of bandwidth for the channels that are not watched by subscribers.<\/p>\n\n\n\n

Thus SDV is a service which delivers the requested channels by the subscribers. In this manner SDV also save the bandwidth of cable tv.<\/p>

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