Satellite dish

satellite dishesdishsatellite antennasatellite receiverdishesdish antennasatellite receiversdirect-to-home satellitesatellite antennaesatellite communication dish
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite.wikipedia
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Communications satellite

satellitesatellite communicationscommunication satellite
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite.
Many are in geostationary orbit 22,200 mi above the equator, so that the satellite appears stationary at the same point in the sky, so the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track it.

Geostationary orbit

GeostationaryGEOgeostationary satellite
The term most commonly means a dish used by consumers to receive direct-broadcast satellite television from a direct broadcast satellite in geostationary orbit.
Communications satellites and weather satellites are often placed in geostationary orbits, so that the satellite antennae (located on Earth) that communicate with them do not have to rotate to track them, but can be pointed permanently at the position in the sky where the satellites are located.

Feed horn

feedhornfeed antennafeedhorns
Mounted on brackets at the dish's focal point is a device called a feedhorn.
In parabolic antennas such as satellite dishes, a feed horn (or feedhorn) is a small horn antenna used to convey radio waves between the transmitter and/or receiver and the parabolic reflector.

Low-noise block downconverter

LNBlow-noise block converterBlock conversion
This feedhorn is essentially the front-end of a waveguide that gathers the signals at or near the focal point and 'conducts' them to a low-noise block downconverter or LNB.
A low-noise block downconverter (LNB) is the receiving device mounted on satellite dishes used for satellite TV reception, which collects the radio waves from the dish and converts them to a signal which is sent through a cable to the receiver inside the building.

Parabolic antenna

dish antennaparabolicparabolic dish antenna
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite. The parabolic shape of a dish reflects the signal to the dish’s focal point.
In a home satellite dish, these are received by two small monopole antennas in the feed horn, oriented at right angles.

Cable television

cablecable TVcable channel
Lower frequencies are allocated to cable and terrestrial TV, FM radio, etc.
This contrasts with broadcast television (also known as terrestrial television), in which the television signal is transmitted over the air by radio waves and received by a television antenna attached to the television; or satellite television, in which the television signal is transmitted by a communications satellite orbiting the Earth and received by a satellite dish on the roof.

Set-top box

set top boxset-top boxesSTB
In a single receiver residential installation there is a single coaxial cable running from the receiver set-top box in the building to the LNB on the dish.
The signal source might be an Ethernet cable, a satellite dish, a coaxial cable (see cable television), a telephone line (including DSL connections), broadband over power lines (BPL), or even an ordinary VHF or UHF antenna.

Very-small-aperture terminal

VSATvery small aperture terminalVSATs
A common type of dish is the very small aperture terminal (VSAT).
A very small aperture terminal (VSAT) is a two-way satellite ground station with a dish antenna that is smaller than 3.8 meters.

Satellite finder

A satellite finder may aid in aiming.
A satellite finder (or sat finder) is a satellite signal meter used to accurately point satellite dishes at communications satellites in geostationary orbit.

Rain fade

fadingrainrain attenuation
Overly small dishes can still cause problems, however, including rain fade and interference from adjacent satellites.
However, it does not need to be raining at a location for it to be affected by rain fade, as the signal may pass through precipitation many miles away, especially if the satellite dish has a low look angle.

Universal Satellites Automatic Location System

USALS
There are three competing standards: DiSEqC, USALS, and 36 V positioners.
Universal Satellites Automatic Location System (USALS), also known (unofficially) as DiSEqC 1.3, Go X or Go to XX is a satellite dish motor protocol that automatically creates a list of available satellite positions in a motorised satellite dish setup.

Automatic-tracking satellite dish

Automatic Tracking Satellite Dish
Automatic Tracking Satellite Dishes are satellite dishes used while a vehicle is in motion.

Taylor Howard

Taylor Howard of San Andreas, California adapted an ex-military dish in 1976 and became the first person to receive satellite television signals using it.
In 1976 he demonstrated the possibility of receiving of TV signal from a communication satellite direct to the home of an ordinary householder, using a home-made satellite dish (actually a converted military surplus radar dish) and a self-designed and built analog satellite receiver.

Coaxial cable

coaxialcoax cablecable
In a single receiver residential installation there is a single coaxial cable running from the receiver set-top box in the building to the LNB on the dish.
Coax cable is often used to carry data/signals from an antenna to a receiver—from a satellite dish to a satellite receiver, from a television antenna to a television receiver, from a radio mast to a radio receiver, etc.In many cases, the same single coax cable carries power in the opposite direction, to the antenna, to power the low-noise amplifier.

Satellite television

satellitedirect broadcast satellitesatellite TV
The term most commonly means a dish used by consumers to receive direct-broadcast satellite television from a direct broadcast satellite in geostationary orbit.
The signals are received via an outdoor parabolic antenna commonly referred to as a satellite dish and a low-noise block downconverter.

Satellite Internet access

satellite internetsatellitesatellite broadband
This provides two way satellite internet communications for both consumers and private networks for organizations.
The amount of time during which service is lost can be reduced by increasing the size of the satellite communication dish so as to gather more of the satellite signal on the downlink and also to provide a stronger signal on the uplink.

PrimeStar

In the early 1990s, four large American cable companies founded PrimeStar, a direct broadcasting company using medium power satellites.
PrimeStar was a medium-powered DBS-style system utilizing FSS technology that used a larger 3-foot (91 cm) satellite dish to receive signals.

Dish Network

DishDISH LatinoDish Network Corporation
On 4 March 1996 EchoStar introduced Digital Sky Highway (Dish Network).
Dish Network's first satellite antenna was simply called the "Dish Network" Dish.

Parabolic reflector

parabolic mirrorparabolicparabolic dish
Parabolic reflector
In radio parabolic antennas are used to radiate a narrow beam of radio waves for point-to-point communications in satellite dishes and microwave relay stations, and to locate aircraft, ships, and vehicles in radar sets.

Focus (optics)

focusfocal pointfocusing
The parabolic shape of a dish reflects the signal to the dish’s focal point.

Waveguide

waveguideswave guidewaveguiding
This feedhorn is essentially the front-end of a waveguide that gathers the signals at or near the focal point and 'conducts' them to a low-noise block downconverter or LNB.

Electromagnetic radiation

electromagnetic waveelectromagnetic waveselectromagnetic
The LNB converts the signals from electromagnetic or radio waves to electrical signals and shifts the signals from the downlinked C-band and/or K u -band to the L-band range.

Radio wave

radio wavesradioradio signal
A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite. The LNB converts the signals from electromagnetic or radio waves to electrical signals and shifts the signals from the downlinked C-band and/or K u -band to the L-band range.

C band (IEEE)

C bandC-bandC
The LNB converts the signals from electromagnetic or radio waves to electrical signals and shifts the signals from the downlinked C-band and/or K u -band to the L-band range.

L band

LL-bandL1
The LNB converts the signals from electromagnetic or radio waves to electrical signals and shifts the signals from the downlinked C-band and/or K u -band to the L-band range.