Satellite Communications Industry
« Previous EntriesSatellite Channels On PC Vs TV
Wednesday, June 4th, 2008Satellite Channels On PC Vs TV On Online - The Convergence
By Julius Momoh Ozoh
I have always have disdain for commercial during my favorite sitting through those commercial breaks and not being able to fast track them as you can do with a DVR. The fact is that these breaks are often much shorter than those offered on the originating sponsor television. More often than not, other TV stations airing the same program may have more than one sponsor for the show, so the commercial break varies. This is non existent or little when I am watching TV online.
Satellite TV Communications
Saturday, March 8th, 2008Satellite TV communications provide television broadcast using artificial satellites put up in space. Satellite television as opposed to terrestrial television and cable television uses satellite dish communications. Satellite television satellites are either in highly elliptic orbits (HEO) or geostationary orbits (geostationary satellites appear to be in a fixed position to an observer on earth as they revolve around the earth at a constant speed).
Global communications satellites form a constellation or a system of interlinked satellites. As one goes farther away from earth, the coverage of the satellites increases and thus lesser satellites are required. For geostationary satellites, 4 to 6 satellites are enough to cover the whole surface of the earth.
Satellite System
Thursday, November 22nd, 2007Satellite System
By Jason Gluckman
The 21st century has seen an unbelievable growth in technology that has dramatically changed the man’s capabilities. With the advent of space technology and telecommunication, nothing seems impossible to achieve. The space age began in 1946, when scientists began using German V-2 rockets to explore the upper atmosphere of the earth.
Satellites are very useful in the field of telecommunication. There are two types of satellites used in television and radio. They are the direct broadcast satellite and the fixed service satellite. Fixed service satellites use the C band and the lower portions of the Ku bands. They are normally used for broadcast feeds to and from television networks and local affiliate stations. A direct broadcast satellite is a communications satellite that transmits to small satellite dishes.
Microwaves And Satellite Communication
Thursday, November 22nd, 2007An essential property of microwaves is that they travel in straight lines through the atmosphere, are not affected by the ionized layers. Also these waves are very less affected by temperature inversions and scattering. But these weather effects limit the distance between the transmitter and the receiver to a few miles. This problem is over come by usage of repeater stations placed along the propagation path that extend the distance over which communication can occur. Basically a microwave repeater is a receiver/amplifier/transmitter combination used for relaying microwave signals in long distance and overland communication links. As frequencies of the signals increase thereby distance between repeaters decrease.
Satellite Communications Industry - Launch Services and Manufacturers
Thursday, November 8th, 2007This article covers the companies in the satellite communications industry that provide satellite communications launch vehicles to include the hardware and software inside those vehicles. It will also discuss those companies in the satellite communications industry that provide launch sites and other services to the satellite communications industry.
In the satellite communications industry there are several hundred companies that design and manufacture launch vehicles and the parts for those vehicles.
There are companies like AeroAstro that specialize in the development of small low cost launch vehicles and their components. Now I don’t know about you, but the term “low cost” is not something I want to be associated with if I am traveling several miles above the earth’s surface.