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    • Backward Error Correction (BEC)

      Backward Error Correction (BEC)

      Backward Error Correction, also known as an “Automatic Repeat Request” is an error correction technique in which a receiving device sends a request to the source device to re-send information. Backward Error Correction is used in situations where some of the transmitted data has been lost or corrupted during transit and the transmitting device must

    • S Band

      S Band

      S band is a frequency range from approximately 2 to 4 GHz. S band is used for Digital Audio Radio Satellite (DARS) satellite radio systems such as Sirius XM Satellite Radio.  Sirius XM uses frequencies between 2,320.00 and 2,332.50 MHz, and also between 2,332.50 and 2,345.00 MHz. S band is also used by many weather,

    • GPS (Global Positioning System)

      GPS (Global Positioning System)

      GPS stands for Global Positioning System.  It refers to a system of satellites that constantly transmit a signal, and a GPS terminal that picks up those signals and calculates its position on Earth by measuring the distance between itself and two or more GPS satellites (by measuring the time it takes to receive the signals).

    • Weather Satellite

      Weather Satellite

      A weather satellite is a satellite which is used by meteorologists to gather information about the weather. Weather satellites give meteorologists a view of weather patterns over a very large area. This enables meteorologists to track large weather patterns and make more accurate predictions of future weather behavior. In addition to visual monitoring, weather satellites

    • IFL (Interfacility Link)

      IFL (Interfacility Link)

      An IFL, or Interfacility Link, is a cable system that is used in facilities to connect an outdoor unit and an indoor unit. An outdoor unit refers to the satellite receiver or coaxial cable that connects a service provider to a company while an indoor unit refers to the coaxial cables, routers, or transmitters inside

    • How GPS Tracking Works

      How GPS Tracking Works

      GPS – A Short Introduction GPS, which stands for Global Positioning System, is a satellite navigation system that can ascertain the latitude and longitude of a GPS receiver device on the Earth.  The GPS consists of more than two dozen global positioning satellites orbiting the earth. Each satellite transmits radio signals, which can help determine

    • Satellite Dishes

      Satellite Dishes

      The major types of satellite dishes include motor-driven dishes, multi-satellites, VSAT, and ad hoc satellites. Other types include DTH, SMATV, CABD, automatic tracking satellite dishes, and big ugly dishes. A motor-driven satellite dish is mounted on a pole which rotates around an axis to detect and receive various satellite signals in the sky. It is

    • Retrograde Orbit

      Retrograde Orbit

      A retrograde orbit is an orbit where the satellite travels in an East to West direction instead of the common West to East orbit. The normal West to East orbits are known as prograde orbits. Retrograde orbits are uncommon due to the much higher velocities necessary for successful launch and the associated higher costs. During

    • MCPC (Multiple Channel Per Carrier)

      MCPC (Multiple Channel Per Carrier)

      MCPC stands for Multiple Channel Per Carrier. MCPC is a form of satellite transmission where each carrier is utilized to transmit multiple channels. MCPC transmits multiple video or audio channels on one carrier by utilizing Time Division Multiplexing (TDM). The alternative to MCPC is SCPC (Single Channel Per Carrier). MCPC is used much more than

    • Mobile Satellite Service

      Mobile Satellite Service

      Mobile Satellite Service (MSS) is a type of mobile telephone service that depends on portable terrestrial satellites rather than fixed terrestrial satellites that are also known as cell phone towers. Portable terrestrial satellites are similar to cell phone towers, but can be mounted on moving vehicles such as cars, ships, and airplanes, and individual users

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