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  2. 4DTV - Wikipedia

    en.wikipedia.org/wiki/4DTV

    4DTV is a proprietary broadcasting standard and technology for digital cable broadcasting and C-band/Ku-band satellite dishes from Motorola, using General Instrument's DigiCipher II for encryption. It can tune in both analog VideoCipher II and digital DCII satellite channels.

  3. Television receive-only - Wikipedia

    en.wikipedia.org/wiki/Television_receive-only

    [citation needed] As of 2009, there are 23 C-band satellites and 38 K u /K a band satellites. [17] There were over 150 channels for people who want to receive subscription channels on a C-band dish via Motorola's 4DTV equipment via two vendors Satellite Receivers Ltd (SRL) and Skyvision Archived January 13, 2011, at the Wayback Machine. The ...

  4. C band (IEEE) - Wikipedia

    en.wikipedia.org/wiki/C_band_(IEEE)

    The satellite communications portion of the C band is highly associated with television receive-only satellite reception systems, commonly called "big dish" systems, since small receiving antennas are not optimal for C band. Typical antenna sizes on C-band-capable systems range from 6 to 12 feet (1.8 to 3.5 meters) on consumer satellite dishes ...

  5. Satellite television - Wikipedia

    en.wikipedia.org/wiki/Satellite_television

    Typical transponders each have a bandwidth between 27 and 50 MHz. Each geostationary C-band satellite needs to be spaced 2° longitude from the next satellite to avoid interference; for K u the spacing can be 1°. This means that there is an upper limit of 360/2 = 180 geostationary C-band satellites or 360/1 = 360 geostationary K u-band satellites.

  6. Satellite television in the United States - Wikipedia

    en.wikipedia.org/wiki/Satellite_television_in...

    In November 1990, Primestar launched as the first North American direct-broadcast satellite service. Hughes's DirecTV, the first national high-powered upper K u-band satellite TV system, went online in 1994. The DirecTV system became the new delivery vehicle for USSB.

  7. List of satellites in geosynchronous orbit - Wikipedia

    en.wikipedia.org/wiki/List_of_satellites_in...

    Broadcast and Telecommunications Satellite C-band: Africa, Central Asia, the Middle East and Europe, Ku-band: Central Asia and Europe 7 February 2013, Ariane 5 ECA: 2014-09-11 49.0°E: 50.5°E NSS-5: Lockheed Martin AS-7000 Netherlands SES: Comsat: Americas, Africa, Europe, Atlantic Ocean: 23 September 1997 Ariane-42L: Hybrid C-band/Ku-band ...

  8. List of free-to-air channels at Astra 28.2°E (Ireland and the ...

    en.wikipedia.org/wiki/List_of_free-to-air...

    A satellite minidish. This is a list of the free-to-air channels that are currently available via satellite from SES Astra satellites (Astra 2E/2F/2G) at orbital position 28.2 °E, serving Ireland and the United Kingdom. Sky and Freesat use these satellites to deliver their channels. If one was to change providers between Sky and Freesat, one ...

  9. Cable television by region - Wikipedia

    en.wikipedia.org/wiki/Cable_television_by_region

    These companies currently compete with the Japanese satellite television platforms SKY PerfecTV! and WOWOW, as well as the IPTV platform Hikari TV operated by NTT Plala. Japan Cable Television Engineering Association (JCTEA) is the umbrella organisation representing 600 member companies involved in research, designing, manufacturing ...