The 7 Best Technologies Of The Colour Television

Satellite

History
The television signal was transmitted by satellite in Europe with the first Telstar satellite in North America in 1962. The first geosynchronous communications satellite, Syncom 2 was launched in 1963. The first commercial communications satellite, called Intelsat I (nicknamed Early Bird ") was launched in synchronous orbit April 6, 1965. The first national network of satellite television, called Orbita, was created in the Soviet Union in 1967, and was founded on the principle of the use of highly elliptical Molniya satellite for rebroadcast and delivery of TV signal to ground stations link downward. The first national satellite in North America to carry television was Canada's Anik geostationary one, which was released in 1972. ATS-6, the first satellite Pilot educational outreach and direct, was launched in 1974. The first geostationary satellite to carry television direct Soviet house, called Ekran, began in 1976.
Technology
Satellites used for television signals are generally naturally highly elliptical (with inclination of + / -63.4 degrees and orbital period of about 12 hours, also known as Molniya orbits) or geostationary orbit 37.000 km (22,300 miles) above Land of Ecuador.
Satellite television, like other communications by satellite, starts with a transmitting antenna located at a uplink. Satellite dishes are very large uplink, as much as 9.12 meters (30-40 feet) in diameter. Results have increased in diameter to obtain more accurate and the signal strength on the satellite. The uplink dish is pointed toward a specific satellite and the signals are transmitted uplink to a certain range of frequencies in order to be received by one of the transponders tuned to this frequency range aboard that satellite. retransmits "the transponder" signals to Earth, but on a different frequency band (a process known as translation, used to avoid interference with the uplink signal) usually in the C band (48 GHz) or Ku-band (1218 GHz) or both. The first leg of the signal path between the satellite and ground receiving station is called the link downward.
A typical satellite has up to 32 Ku-band transponders and 24 C-band only satellite, or hybrid satellite. transponders typically each have a bandwidth between 27 and 50 MHz. Each C-band geosynchronous satellite should be spaced 2 degrees from the next satellite (to avoid interference). For Ku space can be 1 degree. This means that there is an upper limit of 360 / 2 = 180 geostationary C-band and 360 / 1 = 360 geostationary Ku-band. transmission C-band is susceptible to interference from the earth while the Ku-band transmission is affected by rain (water is an outstanding microwave absorber at this frequency in particular).
The signal from the satellite downlink, very weak after traveling the great distance (see back square law), are collected by a satellite dish, which reflects the weak signal from the antenna from the point of contact. Mounted on brackets at the focal point of the parable is a device called a feedhorn. This horn is essentially the front of the burning of a section of waveguide that gathers the signals at or near the focal point and "leads" a probe or pickup connected to a block of low noise LNB Downconverter. The LNB amplifies the relatively weak signals, filters block frequencies at which signals transmitted by satellite TV, and converts the block of frequencies to a wide range of low frequency L-band. The evolution of the LNB was one of the need and invention.
The original satellite television using a C-band low noise amplifier connected to the horn, the focal point of a parabola. The amplified signal is fed and sometimes expensive 50 Ohm impedance coaxial cable radical gas-filled to a receiver inside, or in other models, a buck converter-fed (A mixer and an oscillator with some filter circuitry) for Downconversion to an intermediate frequency. Channel selection was controlled, usually by a controlled oscillator voltage agree to be powered by a separate cable head end. But this concept has evolved.
Designs for microstrip frequency converters Radio amateurs have adapted the band 4 C-Band. Central to these designs was the concept of frequency range Downconversion block down, and the block technically easier to handle frequencies (MF).
The advantages of using an LNB is that cheaper cable could be used to connect the receiver the dish satellite TV LNB, and signal processing technology in the UHF and L was much cheaper than that for signal processing at frequencies Band C The shift to cheaper technology of cable and connectors 50 Ohm N-C-Band systems early for the cheaper 75 Ohm F-Connectors allowed the early technology satellite TV receivers to use, what was really changed UHF TV tuners which selected the satellite television channel for conversion to another lower intermediate frequency centered on 70 MHz has been demodulated. This change enabled the satellite television DTH industry to move from being a For general amateur receivers have been built in small numbers and complete systems were expensive (thousands of dollars) to be more a measure of commercial production mass.
Direct broadcast satellite dishes are equipped with an LNBF, which integrates the cone with the LNB.
The satellite receiver demodulates and converts the signals into the desired form (outputs for television, audio, data, etc.) Sometimes, the receiver includes the ability to decode or decrypt, the receiver is called an Integrated Receiver / Or decoder IRD. The cable connecting the receiver to the LNBF or LNB must be low loss type RG-6 quad shield RG-6 and RG-11, etc, can not be standard RG-59.
Standards
distributed analog satellite scrambled or clear usually shipped NTSC, PAL, SECAM or standards of broadcasting. The analog signal is FM and converted it to an FM signal to what is known as baseband. This includes the video signal and baseband audio subcarrier (s). Subcarriers audio is demodulated to provide a raw audio signal.
If the signal is a digital television signal or multiple signals, typically QPSK.
In general, digital television, including from satellites, are generally based on open standards such as MPEG and DVB-S, ISDB-S.
Encryption conditional access encryption methods include BISS, Conax, DigiCipher, Irdeto, Nagravision, PowerVu, Viaccess, Videocipher and VideoGuard. Many conditional access systems are committed.
Use categories
There are three main types of use of satellite television: direct reception by the viewer, reception of the local television affiliates, or reception of headers for distribution across terrestrial cable systems.
Viewer reception includes direct broadcast direct satellite or DBS and television receive-only or TVRO, both used for homes and businesses, including hotels, etc.
Satellite DTH
satellite direct broadcast (DBS), also called "Direct-To-Home" is a relatively recent phenomenon in the world of television distribution. Satellite direct broadcast, or may refer to communications satellites themselves that provide DBS service or actual service television. DBS systems are commonly called "Mini-antenna" systems. DBS uses the upper Ku-band and part of the Ka band.
Modified DBS systems can also be run on satellite C-band and have been used by some networks in the past to circumvent the laws of some countries against reception of Ku-band transmissions.
Most systems DBS transmission using DVB-S. With the services of Pay-TV, the flow of data is encrypted and requires a team of receipt of property. While technology similar underlying technology is receiving pay-TV you own, often consists of a conditional access module and smart card.
This measure ensures the satellite television providers to allow paying subscribers have access to Pay TV content but at the same time can allow free-to-air (FTA) channels to be considered, even by people with standard equipment (DBS receivers without Conditional Access Modules) available on the market.
TV receive-only
The deadline for TV only, or TVRO, arose during the first days of satellite television reception, to differentiate it from satellite uplink and TV commercial transactions downlink (transmission and reception). This was before there was a satellite DTH television industry. Satellite TV at the time were intended to be used by cable TV networks rather than received by home viewers. Systems satellite television were built largely by amateurs, and engineers. These TVRO system operated mainly in C-band frequencies and plates required were large, usually more than 3 meters (10 feet) in diameter. Consequently TVRO is often referred to as "big dish" or "Big Ugly Dish" (BUD) satellite television.
TVRO systems are designed to receive analog and digital satellite feeds for television and audio, both in-band C and Ku-band geostationary type. The higher frequency Ku-band systems tend to be direct and home systems can use a smaller antenna antenna due to transmission of higher energy and greater antenna gain.
TVRO systems tend to use more rather than smaller satellite dish because it is likely that the owner of a TVRO system would have a C-band configuration, only one configuration rather than Ku-band only. boxes extra help with various types of satellite reception of digital signals, as DVB/MPEG-2 and 4DTV.
Beamwidth near a normal satellite means it can receive signals a satellite at a time. Simulsat or Tore Vertex-RSI is a satellite dish near the ground is capable of receiving satellite transmissions from 35 or more satellites Cy Ku-band simultaneously.
Direct to Home TV
Today, most satellite TV customers in developed markets get your TV programming via a direct broadcast satellite (DBS) provider, such as television or flat DTH platform. The supplier selects programs and distributed to subscribers a range of packages. Basically, the goal is to provide suppliers of tens or hundreds of TV channels so that customers approaching competition from cable television. Unlike the previous program, the program provider is completely digital, which means it has high quality images and stereo sound. Satellite television has been previously distributed in C-band – radio in the 3.4 gigahertz (GHz) to 7 GHz satellite broadcast programming digital broadcasting in the Ku frequency range (10 GHz 14 GHz). There are five major components involved in a direct to home (DTH satellite system): the source of programming, the broadcast center, satellite dish and receiver.
Programming sources are simply the channels that provide programming for dissemination. The plaintiff (DTH platform) doesn create original programming itself, it is worth other companies (HBO, for example, or ESPN STAR or TV or the Sahara, etc.) for the right distribution of content via satellite. Thus, the supplier is a distributor of programming sources. (Television networks Cable also working on the same principle.) The distribution center is the cornerstone of the system. In the distribution center or in the air and the location of uplink, the provider receives TV signals from various sources of programming, compresses the signals using digital compression (interference if necessary), and beams a signal distribution to the appropriate satellite. The satellite receives the signal from the radio station and return to earth. The spectator picks up the signal from dish the satellite (or more satellites in the same part of the sky) and transmits to the viewer home receiver. The receiver processes the signal and transmits it to a standard TV. These are steps in more detail:
Programming
Satellite TV providers get programming from two major sources: the reversal of the channel international (such as HBO, ESPN and CNN, Star TV, SET, B4U etc) and various local channels (you know TV, Sahara TV, Doordarshan, etc..) Majority channel delivery also provide cable TV programming, so sometimes some of the DTH platforms add in some special channels for itself to attract more subscribers. channels generally have a relief distribution center which delivers programming to a geostationary satellite. The broadcast center uses large satellite plates to capture analog and digital signals from various sources.
Broadcast Fund
The broadcast center makes all of this high quality programming, uncompressed digital stream. At this stage, the current contains a large amount of data about 270 megabits per second (Mbit / s) for each channel. To transmit the signal from hence, the broadcast center has to compress. Otherwise, it would be too big for the satellite to handle. Providers using compressed MPEG-2 the same video format used to store movies on DVD. With MPEG-2, the provider can reduce the 270-Mbit listen / s of about 3 to 10 Mbps (depending on programming). This is the crucial step that has a DTH service success. With digital compression, a conventional satellite can transmit about 200 channels. Without digital compression, can transmit about 30 channels. media center, digital flow of the high-quality video requires MPEG-2 encoder, which converts the programming to MPEG-2 height correct format and the satellite receiver in your home.
The coding and transmission
After the video is compressed, the provider must encrypt to maintain people to access free. Encryption encodes the digital data so that it can not be decrypted (converted into usable data) If the recipient is the satellite receiver with the correct decoding algorithm and decryption key. Once the signal is compressed and encrypted, the broadcast center radiates directly to one of its satellites. The satellite captures the signal, amplified and sent to Earth, where viewers can see the selection.
The dish
A satellite dish is a type special antenna designed to focus on a specific emission source. The plan consists of a standard dish (bowl shaped) surface and a horn central power. To transmit a signal, a controller that sends through the horn, and the dish focuses the signal into a relatively narrow beam. The plate the receiving end can transmit information, you can receive. The reception of the works in the opposite plate of the issuer. When lightning hits the plane curve, the parabolic shape reflects the radio signal that comes a certain point, a concave mirror focuses light on a particular topic. The curved dish focuses incoming radio waves in the horn supply. In this case, the point is the animal horn plate that passes the signal at the receiving computer. In an ideal configuration, among the main obstacles Aren and satellite dish, so the dish receives a clear signal. In some systems, the dish must receive signals from two or more satellites at the same time. Satellites may be close enough together that a regular dish with a single horn can pick the signals of both. This compromises quality somewhat, because the ISN Floor aimed directly at a or more of the satellites. A new antenna design uses two or more horns to pick up signals from different satellites. As the beams of different hit the curved satellite dish, they reflect at different angles for a ray hits one of the horns and another beam hits a different horn. The central element in the Horn of blockdown feed is the LNBF or LNB. The LNB amplifies the signal bounces off the dish and filters out noise (signals not carrying programming). The LNB passes the amplified, filtered signal to the satellite receiver inside the viewer home.
Receiver
More information: Set-top boxes
The final component of the television system satellite at each receiver. The receiver has four essential functions: It de-coding the coded signal. To unblock the signal decoders, the receiver must chip for programming package. The provider can communicate with the chip, through the satellite signal to make the necessary adjustments to its decoding programs. Provider sometimes send signals that disrupt illegal decoders, such as electronic counter measure (ECM) against illegal users. Take the MPEG-2 digital signal and converts it to an analog format to a standard television can recognize. Since the receiver spits out only one channel at a time, you can tape one program and watch another. You can also see two different programs on two TVs connected to a single receiver. To do these things that come standard on conventional cable, you must purchase an additional receiver. Some receptors have a number of other two devices. They capture a time signal from the program provider and present this information in a program guide screen. Many recipients have options to lock parents, and some have integrated Digital Video Recorders (DVR), allowing you to pause live TV or save it to disk hard. Although satellite digital broadcasting is still without some of the fundamental characteristics of conventional cables (The ability to easily split signals between different TVs and VCRs, for example), the diverse selection of programming, and extended service areas are now considered characteristics as an alternative.
Satellite television, by region and country
Africa
DSTV Multichoice South Africa is the leading provider of television satellite digital sub-Saharan Africa, broadcasting mainly in English but also Portuguese, German and Afrikaans. Canal Horizons, subsidiary Canal + France, is the main provider in French Africa. Another participant in the system of satellite television in Africa is MyTvAfrica, Technology subsidiary the strong based in Dubai. Satellite TV has been much more effective in Africa than cable, especially since the cable TV infrastructure does not exist and would very expensive to install because the majority of Africans can not afford cable television. Moreover, the maintenance of a cable network is expensive due to the need cover larger areas and less populated, but there are some terrestrial pay-TV and MMDS services.
The launch of satellite TV Free2view fact available to the masses in Africa. Free2view currently broadcasts its news channel MSNBC and is the exclusive display additional channels.
GTV, a British company founded, became the second in sub-Saharan Africa provide focus first satellite digital television in Kenya Uganda, Tanzania, Zimbabwe, Congo ETC.
Nigeria
DSTV had traditionally held a monopoly in the satellite television industry in Nigeria, but three new companies, and television tend HiTVmytv compete in this sector
Sudan
Sudan TV, the network belonging to national government, is available via satellite and broadcasting.
Americas
U.S.
It was suggested that this section is divided into a new article entitled Satellite Television to the United States. (Discuss)
Now There are two major satellite TV providers basic subscription service available to U.S. consumers: Dish Network and DirecTV.
In the last three decades, various U.S. satellite services have come and gone or combined to form the current primary service. In 1975, RCA SATCOM created one, the first satellite dedicated for use by the then three national television networks (CBS, NBC and ABC). Later that same year, HBO leased a transponder on Satcom 1 and began broadcasting television programs via satellite to cable networks. The owners of cable systems have paid $ 10,000 to install antennas 3 meters to receive TV signals in band C. In 1976, Taylor Howard built an amateur system, which consisted of a plate of converted military surplus radar and receiver satellite designed and built Howard, for home satellite reception. Taylor's system could be used for the reception of two satellite television Americans and Soviets. In 1977, Pat Robertson launched the first satellite of basic cable services provided by cable network called CBN. In 1979, viewers Satellite Home Act allowed homeowners in the United States to own and operate its own satellite system in the country, consisting C-band hardware from a multitude of manufacturers who have been manufacturing parts for systems such as Howard Taylor, and started a strong controversy about the channels may be received by whom.
USSB direct service to the house founded in 1981. In the early 1990s was associated with Hughes and exploitation continues until it bought in 1998 DirecTV.
In 1991 Primestar launched the first North American DBS. Hughes DirecTV, the first high-level national power Ku-band DBS system, went online in 1994. The DirecTV system became the new delivery vehicle for USSB. In 1996, EchoStar Dish Network is in line with U.S. states and has remained so successful as the main competitor of DirecTV. AlphaStar service launched in 1996 and went bankrupt in 1997. Dominion Video Satellite Inc., Sky Angel also went online to United States in 1996 with its DBS service geared towards "faith and family." Primestar sold its assets Hughes in 1999 and spent an IPTV platform of DBS.
In 2004, Cablevision's Voom service available online, including the restoration of the emerging market of HDTV owners and enthusiasts, but disappeared in April 2005. The service Xclusive HD channels have been migrated to Dish Network system. Services trade competition are the primary DBS television service through cable, although both types of services have very different regulatory requirements (eg, cable television has public access requirements, and both types of distribution have different regulations regarding carriage of local stations).
Multiple LNA toroidal satellite dish 90 cm
Most programming languages ethnicity in North America are made in the Ku band free-to-air. The largest concentration of ethnic programming is on Galaxy 19-97 W. Pittsburgh International Telecommunications and GlobeCast World TV offers a mix of free channels of pay-TV ethnic international format DVB-S, like the others. Home2US Communications Inc. also offers several ethnic channels on AMC-4 to 101 W and the other channels and pay TV. Several members of U.S. English-language networks (representing CBS, NBC, ABC, PBS, FOX, The CW (formerly the World Bank and UPN), ION Network and MyNetworkTV) are available as free air broadcasts, as are the three Spanish-language channels in the U.S. (Univisin, Telefutura and Telemundo). The number of specialty channels free-to-air is quite limited. Specific FTA offerings tend to come and go quite frequently and usually with little or no notice, although sites such as LyngSat channels follow the varying availability of both free and paid in the world.
On October 7, 2009, TV Paul NAB Karpowicz Board Chairman scheduled to testify before the Senate Subcommittee on Communications of the chains would be willing to allow subscribers to keep distance signal so even if the transition to digital technology has resulted in subscribers receiving stations could not do before. The NAB does not oppose providing new signals distant, if a digital signal is available. The Satellite Modernization Act was approved in late 2009. House Bill Draft has also offered dish distant network signals. On November 5, President of the Senate Judiciary Committee, Patrick Leahy, said he expected an agreement "short term" in the draft legislation approved in committee on 24 September. If the Senate approves it, the House passed bill, and both versions can not be reconciled, the license to import signals which expires at the end of the year could be extended. The House version includes an agreement with EchoStar, if possible, all 210 markets can receive signals, and Echostar could return to give away signs.
The Senate passed a version of the trade bill on 19 November without an amendment requiring signals local markets in three years, although a study be conducted on the reasons for the 30 contracts were still a problem. Before the approval of the Senate, the two versions the reconciliation bill, the Judicial Committee has a solution in the market short, while the bill requires Commerce Committee PBS in HD before.
The House passed the Satellite Home Viewer Act Reauthorization of December 03. This includes both the Chamber of Commerce and the House Judiciary Committee releases and renewed ability to use distant signals for five years, has to offer network signals from distant plate again, and 28, receiving signals markets are not available locally. The bill also deals with copyright and requested dishes Network offer HD signals not trade for the year 2011 instead of 2013.
One potential problem: the determination that can not receive a signal is still based on analog rather than digital television.
On February 11, 2010, Senate Majority Harry Reid said the satellite was renewed under a jobs bill. Rick Boucher, chairman of the House for communication and the Internet, said the bill would pass. Deadline is Mars, since it has been extended for 60 days.
Canada
Currently, there are two main based providers of satellite television subscription service to Canadian consumers: TV Direct.The Shaw Bell and CRTC has refused to allow satellite services U.S., but still hundreds of thousands (up to one million by some estimates) of Canadians access or have accessed American services in general these services must be billed to a U.S. address and are paid in U.S. dollars, although some viewers to receive signals from U.S. decrypted by hackers. Whether this activity is the gray market or black market is the source of often heated debate between those who want more choice and say the protection of Canadian firms and the culture is more important. In October 2004, the judge ruled Danile Ct Quebec Canada Radio Act to be in direct violation of Canadian Charter of Rights and Freedoms in insofar as it prohibits the unauthorized reception of foreign television services. Failure gave the federal government within a year to repair the constitutional violation. However, this contradicts the Supreme Court of Canada and the last word from the end of 2004, will be appealed. [Citation needed] In addition, satellite providers Canada continue to suffer through all the black market without any doubt "pirate" or "steal" their signals as well as a number of devices otherwise perfectly legitimate, which can be reprogrammed to receive television piracy. Although no official statistics, the use of satellite services U.S. Canada appears to be declining in 2004 Some say this is probably due to a combination of police enforcement increasingly aggressive and unfavorable exchange rate between Canadian and U.S. currencies. As the U.S. dollar fell from 2005 in relation to other international currencies, the decline in DirecTV in Canada or hearing could be unrelated to a difference in cost for the series of smart card swaps which have made the first three generations of DirecTV access cards (F, H and HU) all obsolete.
Latin America
SKY Latin American satellite system in the U.S. are American, which has about 1.4 million subscribers in each of Brazil and Mexico and DirecTV Latin America, which offers a service for the rest of the Americas, with a total of approximately 1.3 million subscribers. Television payment is not popular among Latin Americans because rights are costly in terms of PPP.
The service offered in Brazil includes Digital TV with full Dolby support Digital, MTS and multiple subtitle options, a first for Brazil market. A recent update of the services of Sky Brazil is Sky + which enables customers record one program while watching another and also Sky HD, which currently provides up to 29 channels of high definition. The services are relatively expensive, so that penetration market is still limited.
Asia
Bangladesh
There are several satellite providers in Bangladesh. The main ones are as follows: – - # Bangla Vision – # NTV – RTV # – # ATN Bangla – Channel # I – Channel # 1 – Kasturi # – # DD – TV Boishaki # – # ETV – TV DESH # – # Diganta TV – TV # Islamic – STVUS # –
Kazakhstan
The first television salellite Kazakstan, Caspionet, was released by the Khabar news agency in 2002.
Malaysia
Astro-mini antenna.
Malaysia only Satellite television operator, Measat Broadcast Network Systems (a subsidiary of Astro All Asia Networks plc) launched Astro in 1996. It currently owns the exclusive rights of the Malaysian government to offer satellite television services broadcasting in the country during 2017.
Japan
The size broadcasting via satellite for experimental purposes (BSE) was planned by the Ministry of Posts and Telecommunications (MOPT) and developed by the National Development Agency Space Japan (NASDA) since 1974. After that, the first Japanese satellite broadcasting on a trial, called BSE or Yuri, was launched in 1978. NHK started experimental broadcasts satellite television using BS-May 2, 1984. SB-2A satellite was launched in preparation for the start large emission 2-channel level. Broadcasting Satellite BS-2a was the first national DBS (direct broadcast satellite), transmitting signals directly to homes viewers. satellite's attitude control was guided by three axial (zero motion), and the design life is 5 years. TV transponder units are designed to amplify the signal enough to allow the reception of small, home to 40 or 60 cm for the use of satellite dishes. The satellite is equipped with 3 TV transponders (including reserve units). However, a malfunction of the transponder 2 months after launch (March 23, 1984), and there A second failure three months after its release (May 3, 1984). Therefore, satellite broadcasting has been provided quickly adjusted to test broadcasting a single channel. Later, NHK started regular service (NTSC) and experimental HDTV broadcasting using BS-2b in June 1989. Some manufacturers Japanese consumer electronics at home has begun distributing TVSET, VCRs and even home acoustic systems equipped by satellite tuners or receivers. These electronic products have a specific logo BS. In April 1991, the Japanese company began paying ACC TV service while BS-3 satellite communication in use. In 1996, the total number of households that receive satellite broadcasting exceeded 10 million euros. Both modern satellite systems in use in Japan and JCSAT BSAT service modern WOWOW Broadcasting Satellite digital uses BSAT satellites, while another Sky digital television system Broadcasting PerfecTV! uses JCSAT satellites.
Pakistan
In recent years there has been little investment in the television industry in Pakistan. There are over 90 satellite channels operating directly inside Pakistan and about 40 that operate their broadcasts from Dubai, Thailand, Bangkok and the United Kingdom. [Edit]
Philippines
Dream Satellite TV is pay DTH service of Philippine Multimedia Service Inc. (PMSI)
Digital TV is pay DTH service Cignal Mediascape Inc.
G FUBC Sat DTH service payment.
Thailand
See also: Truevision
and the media in Thailand
Truevision is the leading payment service television in Thailand that operate cable television in Bangkok and satellite television throughout the country. True Truevision property Corporation. Viet Nam has launched the SAT is 4 / 2008 and GMM Grammy is a service of the second pay-TV Thailand
Australasia
Australia
Satellite television in Australia has proved a more practical option than cable television due to very large distances between population centers. The first online service to come to Australia was Galaxy, which was subsequently taken over by Cable Television giant Foxtel, which now operates cable and satellite services to all state capital cities (except Darwin and Hobart) and the whole of Western Australia. Its main metropolitan rival was Optus Vision, while areas rural areas are served by Austar, both of which just rebroadcast Foxtel from 2005. In 2006 began operating SelecTV to provide relatively inexpensive packages and catering to specialized market segments.
New Zealand
In New Zealand, SKY Network Television offers multichannel digital satellite TV, in addition UHF ground service is not digital. The recently launched TNT is also available on the Optus D1 satellite and a terrestrial digital HD.
Europe
Continental Western Europe
In Europe, DBS satellite services are found mainly on Astra and Hotbird (operated by Eutelsat.) BSkyB (aka Sky) used in the United Kingdom. SKY Italia, Canal Digitaal and UPC are the main providers in Italy, the Netherlands and Central Europe.
Share global market for DBS satellite services in 2004 was 21.4% of TV households, but this varies widely from country to country. For example, Germany, many channels of free television-to-air, the DBS market share is almost 40% and in Belgium and the Netherlands, is about 7% due to extension cable networks with exclusive content.
Russian
The first communication satellite Molniya Soviet call (or "Ray") was launched in 1965. In November 1967, the national satellite television, called Orbita is deployed. The system consists of three highly elliptical Molniya satellite, based in Moscow, headers and ground stations around 20 downlink, which is found in cities and towns in remote areas of Siberia and the Far East. Each station had a receiver 12 m parabolic antenna and transmitters for broadcasting television signals to local consumers.
However, much of Soviet central regions not yet covered by the transponders of Molniya satellites. In 1976, Soviet engineers developed a relatively simple and inexpensive satellite television (in especially for Central and Northern Siberia). These geostationary satellites called Ekran equipped with powerful 300 W UHF transponders, a television station uplink simple stations and accommodation in various cities and villages in the region of Siberia. The typical receiving station, also called Ekran, represented as a receiver analogue satellite homes equipped with simple Yagi-Uda use. Later, Ekran satellites were replaced by more advanced Ekran-M series satellites.
In 1979, Soviet engineers developed Moskva (Moscow) broadcasting system and the delivery of television signals by satellite. New type of satellite geostationary communications, called Gorizont, were launched. They were equipped with a transponder on board powerful, if the size of the receiving antennas of radio link has been reduced down to 4 and 2.5 meters (compared to 12 to start – flat feet standard orbital stations downlink).
In 1989, an enhanced version the satellite television system has been called Global'naya Moskva Moskva (Moscow or Global). System includes some type Gorizont geostationary satellite Communications Express. Satellite television signal global Moscow could be received in all the world countries except Canada and the States Northwest U.S..
Modern services for satellite broadcasting of Russian satellite based on powerful geostationary buses and girls, Express, Yamal and Eutelsat will provide a lot of TV channels in open millions of homes. Pay TV is increasingly popular with Russian viewers. The new company NTV Russia, which belongs to Gazprom, the emissions of NTV Plus package to 560,000 households, reaching more than 1.5 million viewers. –
UK and Ireland
Sky Digital "Mini-antenna"
The first commercial DBS service in the United Kingdom, Sky Television, was launched in 1989 and uses the ASTRA satellite launched with four analog channels. The system of channels and then encryption used VideoCrypt existing PAL video standard. This gave the sky a clear advantage over the winner of the license UK state DBS, BSB.
The following year, after many delays, BSB is launched, five transmission channels (now Galaxy, The Movie Channel, the plant and the sports channel) D-MAC format and using the video encoding system EuroCypher that was based primarily on general system tools VideoCipher used in the United States. Although the system has been BSB technologically more advanced than the PAL system and one of the main selling points of the BSB has been a dish antenna expensive square dish antenna and LNB. Sky system used traditional dish, cheap and Technology NLB.
The competition between the two companies was fierce bidding war over rights Film in the UK. Heaven keep costs to a minimum, the exploitation of an industrial park in Isleworth in west London. BSB expensive offices in London (Marco Polo House). The two services were merged to form British Sky Broadcasting (BSkyB) if the new BSkyB was really Sky. The more technologically advanced system was D-MAC/EuroCypher BSB gradually replaced the video encryption system VideoCrypt sky.
In 1994 17% of the group listed on the London Stock Exchange (with ADRs listed on the Stock Exchange New York), and of News Corporation Rupert Murdoch, has a 35%.
In 1999, following the launch of several satellites (19.2E SES Astra, the number channel has increased to around 60 and BSkyB launched the first platform of digital subscription television in the United Kingdom, offering a range of 300 channels of transmission Astra satellites at 28.2E Sky Digital brand. BSkyB's analogue service was suspended December 31, 2001 and all clients have migrated to Sky Digital.
In May 2008, a satellite service free-air BBC and ITV launched Freesat brand, bringing a variety of channels, including some of the content in high definition formats.
Nordic countries
The first satellite service specifically for the Nordic region was TV3 which launched in 1987. With the launch of ASTRA 1A, TV3 is now easier. The first satellite specifically Nordic, Tele-X was released in 1989. Services Scandinavia dispersed several satellites. In 1993, the former BSB satellites were bought by a Swede and a Norwegian company, respectively. Both satellites were renamed Thor and Sirius January 1, moved to new positions and started broadcasting services intended for persons in the Nordic region. With the launch over Thor and Sirius satellites later in the 1990s, Astra and other satellites were abandoned by the services in the Nordic countries with almost all Nordic satellite television migrate Sirius and Thor satellites.
Initially the basic channels free-to-air. This has caused several rights problems since viewers throughout Europe have see much of the acquired English language programming, and sports channels for free in the Nordic countries but the broadcast channels to country specific duties. One way to avoid that was to go to the PAL D2-MAC, hardly used anywhere outside the Nordic region. Yet a clear channel could be seen in all the Nordic satellite homes, so eventually all past encrypted channels (many of them are only available in one country). There are two competing satellite services: Canal Digital (Telenor of Norway) and Viasat (Kinnevik). Canal Digital launched in 1997 and has been since the first digital broadcasting Thor. Kinnevik had been operating an analogue subscription service since late 1980, but waited until 2000 before launching a digital service. All services Thor and Sirius analog ceased in 2006 when the three chains in Denmark are the only other digital. The competition between Viasat and Canal Digital has made some households Scandinavian countries have to buy two decoders and two subscriptions to get the full range of channels. Viasat not provide their own channels (TV3, TV3 +, ZTV, TV1000 and Viasat channels mark) in the Canal Digital platform. Canal Digital, however exclusive distribution channel of SBS Broadcasting, Discovery, Denmark, TV2 and Eurosport, as several years the Swedish SVT and TV4 channels also exclusive to Canal Digital.
Middle East and North Africa
The Middle East has a high penetration of homes receiving satellite TV channels DTH. A pioneer of free-to-air digital satellite TV considers MBC, which began broadcasting on Arabsat and C-band the first network in the world that offers outdoor chain based in the western English-language film at the hearing of the Middle East with its separation with 2-channel MBC. Your competitor is considered direct Dubai, United Arab Emirates based on a TV, previously known as Channel 33, which was the first chain in the Middle East to offer programming English language general entertainment for the expatriate community.
Nourmina Channel is the first satellite channel owned by a Jordanian national private sector, which emits Nile Sat 12303H reluctantly covering all Arab countries, Africa and most of Europe – the first network of digital pay-TV DTH to offer India Entertainment was orbiting satellite television and broadcasting through Radio Network Eurobird 2 (Ku band), later a Showtime Arabia joint venture between Viacom (21% interest) and KIPCO (participation 79%) started broadcasting, via PanAmSat (Band C), but later changed to Nilesat (Ku band). Arab Radio and Television (ART) now known as Arabs digital distribution, but a final corner, has gained ground for the transmission unique sporting event. The most popular channels are transmitting these satellites and orbital positions: Arabsat 26E, 100.5E and 105.5E AsiaSat in Eutelsat Hot Bird 13E, Nilesat 7W and PanAmSat to 68.5E. + At present, there are two major providers of subscription television service by satellite to offer to consumers Canada: Bell Direct TV and Shaw.
In Israel, the satellite TV services have been introduced by YES! company, with the base of Amos Israeli (Satellite).
See also
Plate
microwave antenna
Space commercialization
FTA Receiver
Molniya
References
^ Robertson, Lloyd (9/11/1972). Lance Anik A1: closing the gap. "CBC English Television. Http: / / archives.cbc.ca/500f.asp? Id = 1-75-92-594. Accessed on 25/01/2007.
^ BBC News: Country Profile: Sudan. Last updated at 13:38 GMT, Wednesday, June 18, 2008 14:38 UK. Accessed July 13 2008.
^ Monitoring LyngSat
^ Eggerton, John (10/06/2009). "NAB does not oppose some distant signals created." Broadcasting & Cable. http://www.broadcastingcable.com/article/356999-NAB_Won_t_Oppose_Some_Grandfathering_Of_Distant_Signals.php?rssid=20068&q=digital+tv. Retrieved from 09/10/2009.
Eggerton ^, John (5/11/2009). "It seems short-term agreement Leahy 'in the reauthorization of satellite. Broadcasting & Cable. http://www.broadcastingcable.com/article/382942-Leahy_Looks_for_Short_Time_Agreement_on_Satellite_Reauthorization.php?rssid=20068&q=digital+tv. Retrieved 10/11/2009.
^ Eggerton, John (19/11/2009). "The Senate passed the reauthorization bill satellite. Broadcasting & Cable. Http://www.broadcastingcable.com/article/389824-Senate_Passes_Satellite_Reauthorization_Bill.php?rssid=20068&q=digital+tv. Retrieved on 20/11/2009.
^ Eggerton, John (12/03/2009). "Convincing SHVRA passes in the House. Broadcasting & Cable. Http://www.broadcastingcable.com/article/417629-SHVRA_Passes_Convincingly_in_House.php?rssid=20065&q=digital+tv. Retrieved on 03/12/2009.
^ Eggerton, John (12/15/2009). "Extension of the satellite bill, say at the table of the House. Broadcasting & Cable. http://www.broadcastingcable.com/article/440498-Satellite_Bill_Extension_Said_To_Be_On_Table_In_House.php?rssid=20103&q=digital+tv. Retrieved on 17/12/2009.
^ Eggerton, John (2/11/2010). Senate version "of the satellite bill Hits Hill. Broadcasting & Cable. http://www.broadcastingcable.com/article/448896-Senate_Version_of_Satellite_Bill_Hits_Hill.php?rssid=20068&q=digital+tv. Retrieved on 25/02/2010.
^ "CTV.ca | Continued objectives gray market satellite distributors. CTV.ca. Updated Mon. October 21, 2002 20:46 ET. Http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/1035231116797_30640316/ /. Retrieved on 09/06/2008.
^ "News from TV Broadband | Central and Eastern Home | Europe. Broadbandtvnews.com. Http://www.broadbandtvnews.com/archive_cen/240306.html. Retrieved 6/9/2008.
References
Lyngemark Satellite Maps
satellite offices around the world and feed information, available in a wide variety of languages
Satellites are
Satellite XML generator
SES Astra fleet interactive map
SES Astra guide channel
Satellite-TV/TVRO / C-Band FAQ List
Linowsat PID-Lists and Tables Videobitrate
The satellite transmission and digital
Steve Birkill History C-band and satellite television early
Satellite Systems Mark Russia's long Statsionar
Online Satellite Calculations
Satellite Finder based online Google Maps
EV
Cable, satellite and other specialty television providers
Cable
TV
Asianet Cable Vision Adams Cable Airtel Digital Tv Company Adelphia Armstrong Atlantic broadband telephony CableOne Austar Bright House Networks Buckeye Cable Cable TV Hong Kong Cable TV CableLink Wakasa Obama (Japan) Cablevision (U.S.) Cablevision (Canada) Champion Channel Digital Broadband Charter Cogeco Columbus Communications Comcast Com Hem Cox DartyBox Eastlink EMBARQ ER-Telecom (Russia) Fastweb (Italy) media First Foxtel GCI Global Destiny GUdTV Globosat (Guam) Kabel Deutschland Hathaway hot penetration Knology MCV IndosatM2 Kujtesa MASTV broadband cable MC Cablevision Mediacom Midcontinent Communications Millennium MetroCast Qwest Digital Media Neighbourhood Cable Net Brasil Ono Optus Individual Choice TV RCS & RDS RCN Rogers Satview Broadband Ltd Service Electric Suddenlink Shaw Smallworld StarHub TV Tele2 SkyCable TDC Tele Columbus (Germany), Telenet (Belgium) TelstraClear TelkomVision InHomeTV Time Warner TransACT TV Cabo Turksat Truevision TVTEL Netherlands Kable UCS UPC Ireland UPC Romania UPC Uralsvyazinform (Russia) Virgin WOW Vidotron Media! Ziggo WightCable
Satellite
TV
AB Sat Airtel Digital TV AlphaStar Arab Digital Distribution ART Astro Astro Nusantara Austar Bell Tele BIG beetles Boom TV Canal Digital TV CanalSat CanalSat Horizon CanalSat Caldon CanalDigitaal CanalSat CanalSat Cyfra + D-Smart Meeting Caspionet DD Direct Plus Digi TV Digital + DialogTV Digit Alb-Digitürk DirecTV Dish Network Dish TV DStv Euro1080 Focus Sat Dolce Dream Foxtel Sky Freesat Freesat Freeview (NZ) GlobeCast World TV Indovision Glorystar Globosat Home2US HiTV Kristal Astro TV-Max MBC (Middle East) N (Poland) NTV NOVA Cyprus NOVA Greece Deutschland SelecTV addition Orbit Showtime Heaven Heaven Heaven PrimeStar Shaw Direct Red Sky Digital Sky Italia Latin America Skylife PerfecTV! Sky TV (NZ) STAR TV STAR Select Sun TV Tata Sky TPS Sat tiv TelkomVision Truevision TV Vlaanderen Digitaal, TV Cabo World TVTEL UBI TV Viasat Voom WOWOW yes USSB Viasat Ukraine
IPTV
Alice Home TV (Italy) Beeline (Russia) Belgacom BSNL Canal Digital Clix Bell Aliant Deutsche Telekom BT Vision TV DartyBox Crnogorski Telekom (T-Home) DTV Elion (Estonia) Fastweb (Italy) Free Fine TV hanaTV Freewire TV (Korea) Imagenio iNES Infostrada TV (Italy) KPN IT & T P (Luxembourg) TV Maroc Telecom (Morocco) MTNL Mio TV Neuf now TV Orange Portugal Telecom (Meo) Sky Angel ShqipTV Hrvatska T-Com T-Home Macedonia Tele2 TeliaSonera Telefnica TalkTalk TV TELUS Tiscali TV (Italy) TrueIPTV TPG IPTV (Thailand) TVCatchup U-verse VDC Viasat
Terrestrial
TV
Boxer (Sweden) Cablevision (Lebanon) Doordarshan Freeview (Australia) Freeview (NZ) Freeview (UK) KPN (Netherlands) La 7 cartap (Italy) Mediaset Premium (Italy) MiTV Multi-Choice TV (Barbados) Pakistan Television PlusTV Corporation (Finland) RiksTV (Norway) Picnic Ground Sky Numrique Tlvision (France) Top Up TV digital terrestrial Televisa (Portugal)
Fiber Optic
Verizon FiOS AT & T Fiber TVTEL meo
EV
wire-free video and data distribution methods
Advanced Wireless Services Amateur television Analog TV Digital Radio Digital TV Digital television in Europe, digital terrestrial television (DTT or Freeview)
Digital Video Broadcasting (DVB): Terrestrial – Satellite – Handheld Video Multipoint Distribution System (MVDS or DVB-MS) HomeRF tele-education fixed service (ITFS) is now known as Education Service Broadband (EBS) in Ku band Local Multipoint Distribution Service (LMDS) Microwave mobile broadband Mobile TV mobile WiMAX (IEEE 802.16e) mobile broadband wireless access (IEEE 802.20), Multichannel Multipoint Distribution Service (MMDS) now known as the Business Radio Service (BRS) MVDS multimedia MVDDS broadcast multicast service (3G MMMS) Satellite Satellite Internet access Satellite radio UWB (IEEE 802.15.3) Visual sensor network Wi-Fi (IEEE 802.11) WiMAX (IEEE 802.20) WRAN (IEEE 802.22) wireless local loop (WLL) wireless broadband USB wireless 3GPP Long Term Evolution (LTE)
4G
you and
Satellite Communication
Detailed Articles
Satellite radio relay satellite transponder satellite Internet satellite access list A list of the first satellite earth station business satellite communications more …
Team
Very small antenna satellite modem satellite phone terminal opening
Radio TV
DVB-SH S-DMB DVB-RCS DVB-S2 digital radio service on the radio audio Satellite … Satellite TV … more
corporate radio / TV
1worldspace Astra Digital Radio Sirius Satellite Radio XM Satellite Radio Dish Network DirecTV XM Radio Television plc Sky AfriStar
Broadcast satellite companies
SES Astra Inmarsat Thales Alenia Space Arianespace EADS Astrium Eutelsat, Boeing and Lockheed Martin Systems Globalstar Tooway Viasat SED
Trade Organizations
ETSI Satellite Digital Radio Advisory Committee on Space Data Systems
See also: Category: Communications satellites
Categories: Satellite TV | Satellite broadcasting | Tierra stationsHidden: Articles with weasel words March 2009 | games article declarations December 2009 | All articles related to sections | to be distributed from April 2009 | Articles split from April 2009 | All articles articles divided | orphan statements since February 2007 | Articles linked from April 2008 About the Author

I am a professional writer from China Suppliers, which contains a great deal of information about $keyword_li, welcome to visit!

NOS Energy Drink TV Commercial: Chris Forsberg Drifting