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Satellite Television Terminology
Satellite television systems are complex devices for many people, because they involve constant encoding, transmitting, and decoding of video data. The following are some basic terms to help you understand these complicated systems.
Access Card – This is a plastic card that contains usage information for each individual receiver. The usage information is forwarded to a satellite provider, who then issues an appropriate bill.
Coax Cable – Coax, or coaxial, cables are used in satellite television systems. The dish acts as an antenna and receives the signal from the satellite. Coax cables must then get the signal from the dish and pass it along to the receiver. After the signal is sent to the receiver, it is transferred to the television. Coax cables should be installed by a certified technician.
Digital Compression – This is the process by which video is converted into digital code. Digital code is more condensed than previous methods of video transmission, which means each satellite can handle more channels.
Rain Fade – This is a temporary decrease in or loss of signal that is caused by inclement weather.
Receiver – It is the receiver that translates the signal from a satellite into images that can be projected onto a television.
Transponder – The transponder in a satellite acts as an antenna. It receives the signal of a specific channel from earth and then rebroadcasts it back to earth.
Uplink – This is the path that a signal takes between the earth and a satellite.
HDTV – This stands for high definition television. HDTV is a higher quality audio and video broadcast method.
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Companies that offer television satellite antenna systems offer a way to connect to your favorite channels via satellite access. These broadcasting companies provide HDTV and cable TV availability through orbiting geostationary antennas which transmit high definition images to television sets in a given area.
Customers have a wide selection of channels to choose from so they can watch their favorite TV shows and movies whenever they want. Thanks to satellites in space, customers can receive high-quality digital radio and television from service providers that operate in their area.
Commonly used in radio and television broadcasting, antennas, also called aerials, are transducers whose job it is to transmit and receive signals through electromagnetic waves. In addition to radio and television, antennas are also found in point-to-point radio communication, cell phones, wireless LANs, and spacecraft communications. However, they can also operate under water or underground over short distances.
Satellite dishes can be mounted on roofs to obtain signals from the sky, controlled via tuners, transmitters, and other components. Technicians that work for television satellite antenna systems can install dishes and other HDTV components for customers looking to tap into high-quality digital TV.
The first satellites were launched during the Space Race in the late 1950s solely for communication purposes for the military. Then, in the late 1970s, public television saw the first Public Television Satellite Service, but it wasn’t until the 1980s that Direct to Home (DTH) satellite receivers came about. Technology has continued to evolve at a dizzying pace since then, offering viewers the highest quality channel selection available.