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Free-to-air
From Wikipedia, the free encyclopedia
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Free-to-air (FTA) television (TV) and radio broadcasts are sent unencrypted and may be received via any suitable receiver. Free-to-view (FTV) is, generally, available without subscription but is encoded and may be restricted geographically. Neither of these are pay-TV, which is an encrypted subscription (or pay-per-view) service. FTA is usually delivered by satellite television, but in various parts of the world with encrypted digital terrestrial television channels it is broadcast on UHF or VHF bands.
Although these channels are described as free, the viewer does in fact pay for them. Some are paid directly by payment of a licence fee (as in the case of the BBC) or voluntary donation (in the case of educational broadcasters like PBS), others indirectly by paying for consumer products and services where part of the cost goes toward television advertising and sponsorship (in the case of Japanese television broadcasters like TV Asahi and TV Tokyo which relies on sponsorship heavily).
Free-to-air is often used for international broadcasting. It is television's equivalent to shortwave radio.
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Australia's two main government-owned TV channels, ABC and SBS, along with the digital-only multichannels ABC2 and the SBS World News Channel, are both availably free-to-air on the NSS5 satellite (SBS can also be received from the Optus B1 satellite). Viewers in remote parts of Australia can also access Seven Central and Imparja Television, or WIN WA and GWN in Western Australia, through the free-to-view Optus Aurora program.
Other satellite-only channels such as Indigenous Community Television, TVSN, and Al Jazeera English are available free-to-air on various satellites.
Australia also has 3 other free-to-air stations, Seven, Ten and Win. زق
Around 33 FTA television channels are broadcast from three transponders on the NSS-6 satellite covering India, Pakistan, Bhutan, Nepal, Sri Lanka and parts of Afghanistan, China, and Myanmar. In India The channels are marketed by Doordarshan, India's national broadcaster as "DD Direct +", although other channels such as dw tv and Zee Muzic are also provided.
In Korea, KBS, MBC (2 main public broadcaster, such as the ARD and ZDF of Germany), SBS (privately owned, but for free to viewers), and EBS (including both TV and Radio) are the free-to-air broadcasting stations. They dominate more than 80% of advertisement profits, according to the recent survey from the agency KOBACO. Due to the recent government's decision, Digital TV service for all free-to-air network will be scheduled before the year 2012, following at the end of analogue-based current broadcast.
European countries have a tradition of most television services being free to air. Germany, in particular, receives in excess of 100 digital TV channels free to air, including MTV (which remains encrypted for much of Europe). Approximately half of the television channels on SES Astra 1 (19.2E) and 2 (28.2E), and Eutelsat Hotbird (13E) are free to air.
In general, all satellite radio in Europe is free to air, but the more conventional broadcast systems in use mean that XM and Sirius style in-car reception is not possible.
A number of European channels which would likely be free-to-air, including many countries national terrestrial broadcasters, do not do so for copyright reasons - rights to purchase shows to show free-to-air are often higher in price than for encrypted broadcasts. However, these channels usually provide a scheme to offer free, but encrypted, viewing with free-to-view broadcasts. The UK's Channel 4 and Five, certain programming on Italy's RAI, and the majority of Dutch channels are covered by such schemes.
The national networks, Television New Zealand TV ONE and TV2, and Māori Television are free-to-air analog signals. Additionally satellite reception is available on Optus D1 - branded Freeview. A new Channel - NTVNZ6 was introduced which will only be available on Freeview. A broadcast of parliament and a number of regional channels are also available. A Digital Terrestrial version of Freeview is expected in 2008, which, unlike the current analog and satellite options, will support high definition broadcasts.
There are a number of competing systems in use, with early adopters having used C-band satellite dishes of several feet in diameter to receive signals which were originally analogue FM, later digital using the Motorola-proprietary Digicipher II system or later still going to Ku-band and under one-metre dishes with most often the international DVB standard.
The most common North American sources for free-to-air DVB satellite television are:
- Ethnic-language broadcasters such as Globecast World TV on Galaxy 25 (97°W)
- Christian broadcasters promoted by Glorystar & Spiritcast Satellite Systems TV on Galaxy 25 (97°W)
- Individual local stations of major US terrestrial TV networks, such as the Equity Broadcasting stations on Galaxy 10R (123°W)
- Public educational broadcasters including PBS on AMC3 (87°W)
Most of these signals are carried by US satellites. There is little or no free Canadian DVB content available to users of medium-size dishes as much of the available Ku-band satellite bandwidth is occupied by pay-TV operators Star Choice and Bell Expressvu. FTA signals may be scattered across multiple satellites, requiring a motor or multiple LNBs to receive everything.
The largest groups of end-users for Ku-band free-to-air signals were initially the ethnic-language communities, as often free ethnic-language programming would be sponsored by foreign governments or broadcasters. Depending on language and origin of the individual signals, North American ethnic-language TV is a mix of pay-TV, free-to-air and DBS operations.
Nonetheless, free-to-air satellite TV is a viable alternative for use in locations where terrestrial over-the-air reception is poor. Digital terrestrial signals, where available, most often tend to be low-power and therefore coverage outside major cities depends largely on analogue terrestrial reception, subscription TV or satellite TV.
Years ago, it was so hard to find some Latin channels on satellites as free to air or in any other form , except for some channels from Mexico and Venezuela . Today you can see over 100 channels as FTA on Intelsat806 , from all over Latin America. there are more than 300 channels FTA on 5 satellites ...some 20 more satellites are easy to be locked with Dishes less than 75cm for KU band or 180cm for c band.