SMATV is Single Master Antenna Television (or Satellite Master Antenna Television), The purpose of SMATV is for supplying and controlling the number and type of channels to multiple televisions. Not only TV channels but FM channels as well. It provides Reception of

DBS DBS may refer to: Music groups * The dB's, a power pop band of the '70s and '80s *d.b.s., a Canadian punk rock band from 1992 to 2001 * Death by Stereo, an American heavy metal/punk rock group from California Companies and organizations Schools ...

TV/FM channels for hotels, motels, dormitories, schools, hospitals and commercial properties with multiple tenants. Using a master antenna system video signals, audio signals and decoder signals can also be distributed. It consists of single outdoor unit or antenna feeding to number of indoor units. The channels accessible are independent of other users. For maintaining a good

signal-to-noise ratio Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in d ...

at all the indoor units served, a larger antenna is required, typically to in diameter. Fracarro-Portenseigne-Compact-Line-QPSK-Digital-Satellite-x6-Headend-SIG9506UN-Front

Fracarro-Portenseigne-Compact-Line-QPSK-Digital-Satellite-x6-Headend-SIG9506UN-Front

A SMATV headend is used to receive and rebroadcast

satellite television Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location. The signals are received via an outdoor parabolic antenna commo ...

channels throughout a property from a single satellite feed. The system consists of a master antenna and a matching transformer to match the balanced antenna with unbalanced cable and amplifiers. Most antennas have an impedance of around 300 Ω. To convert it to 75 Ω, a matching transformer (or

balun A balun (from "balanced to unbalanced", originally, but now dated from "balancing unit") is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance arrangement of either line. A balun ...

) is used. For trunk line isolation, a resistive inductive device known as a splitter is used. The amplifier output is fed to the splitter through

coaxial In geometry, coaxial means that several three-dimensional linear or planar forms share a common axis. The two-dimensional analog is ''concentric''. Common examples: A coaxial cable is a three-dimensional linear structure. It has a wire conduc ...

trunk lines. There are several methods of distribution that are often used in a SMATV headend. These include: *

IPTV Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks. This is in contrast to delivery through traditional terrestrial, satellite, and cable television formats. Unlike downloaded med ...

(

Internet Protocol The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. ...

) TV Systems * COM1000 Pro:Idiom Encrypted HD Headend *

L-Band The L band is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz). This is at the top end of the ultra high frequency (UHF) band, at the lower en ...

Satellite TV Distribution There are two main approaches for distribution of digital TV signals in SMATV installations: * Transmodulation from satellite quaternary

phase shift keying Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave). The modulation is accomplished by varying the sine and cosine inputs at ...

QPSK Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave). The modulation is accomplished by varying the sine and cosine inputs at ...

to quadrature amplitude modulation QAM * Direct distribution of QPSK In the United States, the satellite carriers providing the satellite TV signal for SMATV headend systems are: *

DirecTV DirecTV (trademarked as DIRECTV) is an American Multichannel television in the United States, multichannel video programming distributor based in El Segundo, California, El Segundo, California. Originally launched on June 17, 1994, its primary ...

Dish Network DISH Network Corporation (DISH, an acronym for DIgital Sky Highway) is an American television provider and the owner of the direct-broadcast satellite provider Dish, commonly known as Dish Network, and the over-the-top IPTV service, Sling TV ...

br>Smatv

References

{{reflist, refs= {{cite book, title=EN 300 473: "Digital Video Broadcasting (DVB); Satellite Master Antenna Television (SMATV) distribution systems", url=http://www.etsi.org/deliver/etsi_en/300400_300499/300473/01.01.02_60/en_300473v010102p.pdf, isbn=2-7437-1655-X {{cite book, title=View Source vision and security: "Satellite Master Antenna Television System(S.M.A.T.V), url=http://www.viewsecure.co.uk/smatv.php {{cite book, author1=Dennis Roddy, title=Satellite Communications, url=https://books.google.com/books?id=_Ef0N-ExWucC, accessdate=29 Nov 2014, isbn=978-0-07-007785-0, pages=569- {{cite book, author1=Frank Baylin, author2=Steve Berkoff, title=Wireless cable and SMATV, url=https://books.google.com/books?id=xHfyAAAAMAAJ, accessdate=24 May 2013, date=August 1992, publisher=Baylin Publications, isbn=978-0-917893-17-9 {{cite book, author1=RG Gupta, title=Television Engineering and Video Systems, url=https://books.google.com/books?id=P6BlcWaizHUC&pg=PT490, accessdate=29 Nov 2014, isbn=0-07-058596-2 {{cite book, author1=SK Bhattacharya, title=Electrical Engineering Drawing, url=https://books.google.com/books?id=gdsSXU4uF-MC&pg=PA239, accessdate=29 Nov 2014, isbn=81-224-0855-9 {{cite book, author1=Wendy Van den Broeck, author2=J. Pierson, title=Digital television in Europe, url=https://books.google.com/books?id=oc2HL71I7EgC&pg=PA241, accessdate=24 May 2013, year=2008, publisher=Asp / Vubpress / Upa, isbn=978-90-5487-541-3, pages=241– {{cite book, author=Mark Long, title=Digital Satellite Television Handbook, url=https://books.google.com/books?id=L4yQ0iztvQEC&pg=PA165, accessdate=24 May 2013, year=1999, publisher=Newnes, isbn=978-0-7506-7171-2, pages=165– {{cite book, title=EN 300 473 V1.1.2: "Digital Video Broadcasting (DVB); Satellite Master Antenna Television (SMATV) distribution systems", url=http://www.etsi.org/deliver/etsi_en/300400_300499/300473/01.01.02_60/en_300473v010102p.pdf, isbn=2-7437-1655-X Satellite television