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DIGITAL TERRESTRIAL TV (DTT)
The existing Analogue TV Transmitters in India serve about 88% of Indian population. Constrained by limited frequency capacity, the analogue terrestrial television platform needed a new & more efficient transmission system to meet the demands of the future and to allow for the launch of new services. India has adopted DVB Standard for its digitalization of terrestrial network. The 2nd generation DVB T2 Standard, launched in June 2008, has about 50% more capacity than its first generation DVB T. The DVB T2 Transmitter has high data capacity (upto 40 Mbps). Digitalization of Doordarshan’s Terrestrial TV Transmitters has been started in 63 cities under XI and XII Plan. DVB- T2 Transmitters are equipped for Fixed, Portable and Mobile equipments. Doordarshan plans to install DTT Transmitters at 630 locations all across the county in future. DTT services have been started w.e.f. 25.02.2016 in 16 cities. These cities are: Delhi, Mumbai, Kolkata, Chennai, Guwahati, Patna, Ranchi, Cuttack, Lucknow, Jallandhar, Raipur, Indore, Aurangabad, Bhopal, Bengaluru and Ahmedabad. DTT channels can be received on Mobile TV also using DVB-T2 Dongles in OTG enabled smart phones and tablets, Tablets/laptops etc. The channels can also be viewed on Fixed TV Sets using Indoor/Outdoor antenna on integrated digital TV (iDTV) Sets or using DTT Set Top Boxes. The iDTV sets of Sony, LG, Panasonic, Samsung and other make are easily available in the market. The DVB-T2 dongles for mobile reception are also available with online shopping stores like Amazon, Flip kart, e-Bay etc. Currently DD National, DD News, DD Bharati, DD Sports, DD Regional/DD Kisan channels are being relayed from DTT transmitters installed in 16 cities. Only one time investment for DVB-T2 Dongle is required by viewers and no recurring expenditure is required.
Why DTT? Doordarshan is giving terrestrial transmission of Analog Channels since 15th September 1959. DD is migrating to digital terrestrial broadcasting as going digital will provide multiple programme channels from one transmitter, better video and audio quality, availability of signals on mobile and portable devices like handsets/tablets/PCs etc. Some advantages of DTT Transmission are as below: 1. Analog TV (ATV) is subject to interference, such as ghosting and snow, depending on the distance and geographical location of the TV receiving the signal. 2. DTT Transmission is free from “ghosting” and “snowing”, which are commonly found in analogue TV pictures. 3. Digital TV supports Standard Digital TV (SDTV), High Definition TV (HDTV) and Ultra High Definition TV (UHDTV) standards. 4. The DTT signal can also be received on portable and mobile devices including in moving vehicles. 5. The digital transition offers an opportunity to increase the production of local content. This in turn creates job opportunity and increase creativity and entrepreneurship. 6. DTT provides an alternative all weather reliable distribution platform for viewers. How to receive DTT?It requires ordinary antenna (indoor or outdoor depending upon your location) as used in analogue terrestrial TV. With the existing TV set, a DVB – T2 Set Top Box is required. Some integrated Digital TV sets (iDTV) are available in market having in-built set top box or DVB-T2 tuner. With these TV sets one needs only an antenna to be connected to TV set for watching DTT channels. One can watch TV on android smartphone/Tablet without any data charges by connecting DVB-T2 dongles to OTG port of the device. DVB-T2 dongles are available on e-commerce sites or on line purchase sites. App can be downloaded from play store for ‘TV-on-Go’. DiGi-Darshan Wi-Fi Router for Android & iOS are also available on e-commerce sites or on line purchase sites.
Please watch following YouTube videos: https://www.youtube.com/watch?v=6f2LWnh1C8U https://www.youtube.com/watch?v=hA1nJLENiHQhttps://www.youtube.com/watch?v=WNnjLpKGBdQ STB, Antenna: a.) Indoor Antenna for fixed TV: available in India. One such vendor’s contact detail is: Compatible Power Pvt. Ltd., Vadodara. Email: firstname.lastname@example.org, Phone: +91-265-6580486 b.) Integrated digital TV(iDTV): Many models of Sony, Samsung, Panasonic. LG, VU. c.) DVB-T2 Dongles for smartphones and tablets are available on e-commerce portals like flipkart, snapdeal etc.
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