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  2. 4DTV - Wikipedia

    en.wikipedia.org/wiki/4DTV

    The 4DTV makes use of first-generation digital master feeds on several satellites and hundreds of channels. Therefore, a high quality signal is received, compared to other programming options that are typically compressed and re-uplinked. Being a C-band system, the 4DTV has the advantage of signal stability, great satellite footprint and no ...

  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. Digital television in the United States - Wikipedia

    en.wikipedia.org/wiki/Digital_television_in_the...

    In November 2017, the FCC approved ATSC 3.0 (Next Gen TV), an updated version of the ATSC standards that supports High Efficiency Video Coding (HEVC), video resolutions of up to 4K ultra high-definition (4K UHD), 120 Hz frame rate, high-dynamic-range (HDR) color, datacasting, and mobile television. Unlike the original digital transition, ATSC 3 ...

  6. Satellite television in the United States - Wikipedia

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

    Home2US Communications Inc. also offers several ethnic channels on SES 1 at 101° W, as well as other free and pay-TV channels. Many religious broadcasters reach the DTH and distribution markets with unencrypted DVB-S television and radio channels on Galaxy 19. These channels are available as part of the Glorystar Satellite Service.

  7. 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.

  8. Cable television by region - Wikipedia

    en.wikipedia.org/wiki/Cable_television_by_region

    Fourth channels initially obtained much of their programming from VCR videotapes, which were then played and retransmitted via coaxial cables to connected households with a subscription, and subsequently enjoyed massive growth after the late 1980s when the legalisation of Ku band satellite receptions in 1988 and private installations of C band ...

  9. Television encryption - Wikipedia

    en.wikipedia.org/wiki/Television_encryption

    The now-defunct VOOM and PrimeStar services both used General Instruments/Motorola equipment, and thus used a DigiCipher 2-based system very similar to that of earlier 4DTV large dish satellite systems. [citation needed] In Canada, both Bell Satellite TV and Shaw Direct DBS systems use digital encryption standards. Bell TV, like Dish Network ...