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Mainly because of the curvature of the Earth. If you want to send a signal from one city to another 300 kilometres away by aiming directly at that city, it would end up travelling through the ground as the planet curves which would cause a loss of signal. By sending it to a satellite, both cities have a clear line of sight and as a result, there is very little signal loss.
What else can I help you with?
What is a sateliette?
A sateliette is a huge metal dish roatating the earths atmostphere. At a slow rate. We use the Sateliette's for our electrical needs such as TV Internet and other such things but we also use them for telophones using the same high frequency as another mobile phone :) Confusing stuff ah ?
Is this statment true or false A large artificial satellite on which people can live on for long periods of time is a space station?
True. A space station is a large artificial satellite designed for long-term human habitation and research in space. It provides a controlled environment for astronauts to live and work, typically equipped with life support systems, laboratories, and facilities for various experiments. Examples include the International Space Station (ISS).
What are bodies that orbit moons or planets called?
Satellites. They can be natural (a moon) or artificial (space probes). Earth is a satellite of the Sun, the Moon is a satellite of the Earth and the Lunar Reconnaissance Orbiter is a satellite of the Moon.
What is the difference between moon and satellite?
The word Moon is a name given to the natural satellite in orbit around the Earth. We attribute this name to most objects large enough to see in orbit around other planets. In this way Moons and Natural Satellites are one in the same. Artifical Satellites are what we put into orbit around the earth IE GPS Satellites, but are man made.
Was Sputnik 2 visible from earth?
Yes, Sputnik 2 was visible from Earth. Launched on November 3, 1957, it was the second artificial satellite and had a large size, making it possible to see it with the naked eye under the right conditions. Observers could spot it as it orbited the Earth, especially during dawn or dusk when the satellite reflected sunlight.
What year did television start having satellite?
The first satellite television transmission was sent from Europe to the US via Telstar in 1962. Although amateur home satellite systems (requiring very large dishes) debuted in 1976, their legal status was in flux until the passage of the Satellite Home Viewers Act in 1979. The first DBS system (what we use now) was Primestar in 1991 followed by DirecTV in 1994 and Dish in 1996. Satellite signals for TV began in 1962. The satellite signal was from Europe to Telestar Satellite over North America. The first national satellite network originated in the Soviet Union in 1967. The first domestic Noth America satellite was produced in 1972.
Where can I buy an HD satellite dish?
You can usually get an HD satellite dish from your satellite company. Direct TV or Dish Network are two large companies that are available in almost every area. They have HD satellite dishes. www.dishnetwork.com
Can home satellite tv be used mobile ie motor home?
It could be done, but if you have the really large satellite dishes, you'd have to find something a bit more travel friendly. You'd want the tripod mount for the satellite.
How do satellite receive n transmit television signals?
Satellites receive television signals from broadcasting stations on Earth, which are transmitted to the satellite in the form of microwave signals. The satellite then amplifies and retransmits these signals back to a designated area on Earth using a specific frequency band. Viewers use satellite dishes that capture these signals and send them to a satellite receiver, which decodes the information for display on televisions. This process allows for the distribution of television programming over large distances, including remote areas.
How do employees on offshore oil rigs send email?
Satellite communications. Installation operators will pay a large fee for a set bandwidth to be shared between the crew for email, internet access, telephone and sometimes television, but the latter can be direct from a satellite television provider.
What happens with satellite TV when there is a sun outage?
The Sun is the prime energy source for the planet earth. It burns and gives the planet light every day. The sun never goes out, but at certain times during the orbit of the satellite, the sun will affect how the satellite transmits. This is called a "sun outage" Sometimes, the sun will release large plasma masses called Coronal Mass Ejections, and these events may disrupt satellite TV. Satellite TV interference is common due to solar radiation, solar wind, and CMEs.
What 's the difference between satellite and terrestrial?
IN COMMUNICATIONS: Satellite uses satellite (orbiting) relay-stations in Space but Terrestrial uses cable or antenna-to-antenna signals based entirely on Earth to broadcast your television, radio or cell-phone :) ++++ IN ASTRONOMY: Terrestrial means Earth- (or planet-) bound; a Satellite is any natural or man-made object that orbits a planet. The Moon is a satellite of the Earth.
Which are the applications of vestigial sideband?
Vestigial Sideband Transmission is used for the transmission of Television signals.Because the video signals need a large transmission bandwidth if transmitted using DSB-FC or DSB-SC techniques.
Are old satellite dishes worth any money?
They are a valuable commodity, as they have a number of different uses. They can be used to broadcast wireless networks over a large area. They can also be used to receive Free-to-Air satellite TV when properly retrofitted.
What were satellites originally made for?
The first artificial satellite that had a particular purpose (other than just for scientific research) was the Echo satellite; a large mylar balloon placed in orbit to reflect radio signals back to the Earth. Now, satellites are used for all kinds of communications; TV, cell phones, overseas phone calls, internet and such; weather satellites that help to predict the weather and track storms, and reconnaissance satellites that take photos of the Earth. Oh; GPS satellites.
Is satellite tv service gaining market share on the cable companies?
In 2009, satellite TV actually lost market share to the large cable companies. This is likely due to the lagging economy. Many cable companies offered great packages in 2009 in order to keep adding new customers.
What is a sateliette?
A sateliette is a huge metal dish roatating the earths atmostphere. At a slow rate. We use the Sateliette's for our electrical needs such as TV Internet and other such things but we also use them for telophones using the same high frequency as another mobile phone :) Confusing stuff ah ?
