Geostationary orbit

Antennas – antennas serve as interfaces between transmitted/received signals and transmitters/receivers. Depending on the type, shape, and size of the transmitter antenna, the transmitted signal will have directionality and polarization properties. A receiver antenna is designed to match this directionality and polarization so that the transmitted signal can be received. Earth-facing antennas are usually designed to provide a coverage region with a particular contour shape. Typically, horn antennas

1.Introduction In today’s ultra modern civilization, with features like wireless communications, high definition television broadcasting and Internet access almost in any point of the world the use of the so called telecommunication satellites is unavoidable. The continuous growth of the satellite industry is due to the fact of the many advantages of it, like low costs, big covered areas, possibility of broadcasting and many others. In the present project there will be presented the basic functioning

Very Small Aperture Terminal (VSAT) Communication Networks Introduction Very Small Aperture Terminal (VSAT) communication networks are a form of satellite communication where business and industry can transmit data, voice and video around the world through a satellite link. Companies such as Walmart use VSATs to process data to and from their stores nationwide (Lawton, 1994). Understanding the basics of what constitutes a VSAT network and how it operates will establish a basis of knowledge

Geostationary satellites now travel on paths known as the Clarke Orbit (EETimes). 3 Perhaps one of the clearest, most in-depth modern explorations of memory and technology in science-fiction to date can be seen within the series Black Mirror. Black Mirror, a show which premiered

Iridium Communications Satellites James M. Selix American Military University July 31, 2016   Contents Introduction 3 I. Constellation Overview 5 II. Iridium Communications 7 III. Challenges 10 Summary 12 Bibliography 14   Introduction Satellite communication is undoubtedly ingrained into many facets of our global society. It provides an ability to relay voice communications of family members across the globe or transmit data from field locations to headquarters located across oceans. It has

for the government in the summer of 1966; the DSCS was broken down into three phases. The first phase was to send 26 small communications satellites to orbit with a lifespan of 18 months with one of the 26 satellites lasting 11 years after the launch (DSCS, 1982). Phase two of the DSCS program started shortly after the final launches to orbit of phase one. The first launches of phase two we done in the fall of 1971, phase two DSCS were launched to replace all phase one DSCS. DSCS phase two had

circling a larger thing. The complete path it follows is called an orbit. The moon is a example of a natural satellite of the earth. Manmade, or artificial satellites are placed into orbit by rockets or space shuttles. After World War II, the former Soviet Union successfully launched Sputnik I, the first artificial satellite in 1951, into space. In 1958, the United States launched its first artificial satellite Telstar I into orbit. Since then, many more satellites were made by different countries

numerous contraptions into space such as satellites in which many currently orbit the Earth. These contraptions can be used for reconnaissance, communications, weather, search and rescue, navigation, exploration, television, and much more. Not a day passes by where we do not make use of these contraptions in our lives. However, as we progress towards the future, more and more of these satellites will be launched into orbit and as the fate of technology, they are bound to fail at some point and often

and safety provided by the technology we launch into space. Examples of the benefits are cellphones, GPS for direction, environmental studies, weather forecasting, defense, and much more. However, with every placement of advanced technology into orbit the continuation of the ability to launch additional assets are at risk. The thousands of articles left behind following the launch of spacecraft or vehicles generate that risk. Over the past fifty plus years, the risk has increased exponentially

How Aristarchus made a large jump from terrestrial measurements of scale to the celestial is truly impressive. Without any measures of the sizes of and distances to any celestial objects, Aristarchus was able to measure both for the Moon. He was able to use something he knew about the Earth and a bit of smart geometry to deduce the size of the Earth 's shadow at the distance of the Moon. By watching the Moon go through the Earth 's shadow which is formally known as a lunar eclipse, Aristarchus could