Satellite Communication Question Papers

[Florian Peitz]

Onthe EasyEngineering EC8094 Satellite Communication (SC) page, the students can download the Local Author Book PDF, which contains unit wise Part-A 2 marks, Part-B 13 marks and Part-C 15 marks important questions with answers.

The Anna University students can download the EC8094 Satellite Communication (SC) Previous Years Question Papers Collection on the EC8094 Question Papers Page, which contains the last 5 years question papers sets (EC8094 Question Bank) for the students to prepare for their upcoming Eighth Semester examination.

On the EasyEngineering website, the students can download the EC8094 Satellite Communication (SC) Part-A 2 mark Questions with answers. These EC8094 notes are useful for those candidates who are preparing for their upcoming Eighth Semester examination of Anna University.

The students can download the EC8094 Satellite Communication (SC) Part-B 13 mark Questions with answers on the EasyEngineering webpage for preparing their upcoming Anna University Eighth Semester examination.

The EC8094 Satellite Communication (SC) Part-C 15 Mark Questions with answers are available to download on the EasyEngineering website for preparing the upcoming Anna University Eighth Semester examination. This Part-C is considered as very important section in the regulation 2017 in which the students are focus to answer the questions because the answer for this section is allotted as 15 Marks.

The EC8094 Satellite Communication (SC) Anna University Internal marks can be check by the students from the official portal of Anna University (coe1.annauniv.edu). The steps to check the Anna University Internal marks are clearly explained in the EasyEngineering Anna University Internal Mark checking page.

In the Easyengineering EC8094 Satellite Communication (SC) page contains the grace mark details to notify the students to know about the grace marks provided by Anna University for the invalid or out of portions/syllabus questions asked in the current Eighth Semester EC8094 exam.

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Satellite communication is transporting information from one place to another using a communication satellite in orbit around the Earth. Watching the English Premier League every weekend with your friends would have been impossible without this. A communication satellite is an artificial satellite that transmits the signal via a transponder by creating a channel between the transmitter and the receiver at different Earth locations.

We know that there are different ways to communicate, and the propagation of these waves can occur in different ways. Ground wave propagation and skywave propagation are the two ways communication takes place for a certain distance. The maximum distance covered by them is 1500 km, which was overcome by the introduction of satellite communication.

The communication satellites are similar to the space mirrors that help us bounce signals such as radio, internet data, and television from one side of the earth to another. Three stages are involved, which explain the working of satellite communications. These are:

The second stage involves transponders such as radio receivers, amplifiers, and transmitters. These transponders boost the incoming signal and change its frequency so that the outgoing signals are not altered. Depending on the incoming signal sources, the transponders vary.

The final stage involves a downlink in which the data is sent to the other end of the receiver on the earth. It is important to understand that usually, there is one uplink and multiple downlinks.

The communication takes place between the transmitter on the first earth satellite to the receiver which is the second earth satellite. The transmission of the signal is unidirectional. Some common one-way satellite communication is:

Our website provides solved previous year question paper for Satellite communication from 2007 to 2018. Doing preparation from the previous year question paper helps you to get good marks in exams. From our SC question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

Brpaper is founded by a small team of engineers in 2011, who had the dream of digitalizing study material for University students. Started from Punjab Technical University, Regular course, we aim to add all universities of India.

The role of satellite networks in global communications is growing at an unprecedented pace. From direct broadcast satellite (DBS) television, to satellite phones, to credit card transactions, to the Internet, corporations and consumers are embracing these new services and placing demands on bandwidth. With this demand have come expectations in terms of basic service costs, hardware costs, and ease-of-use. These expectations have forced the industry to examine its traditional ways of operating in order to make satellite services as accessible and convenient as its terrestrial competitors.

Recent current events, such as the World Trade Center tragedy and its aftermath, have demonstrated our need for and how reliant we have become on communication medium. As the World Trade Center lay in ruins, also destroyed were a vast array of communication equipment from transmission antennae for radio and TV stations to switching equipment for phone service. Though throughout all this people were still able to communicate, TV and radio stations were still transmitting their signal. Much of this was a result of wireless and satellite technology.

With this paper I plan to explain the ever-growing world of satellite communication. How it is changing the way we perform our daily tasks and how it has effected our lives in general. How different businesses have adapted to and the ways they have begun to utilize these new technologies.

Furthermore, we will take a look at what new theories and technologies are on the horizon. How these could effect our lives. When and who is trying to implement them, and to what cost, monetarily and professionally.

The backbone of this system is the geosynchronous orbit satellite (GEO), these are large communication satellites placed in orbit roughly 36,000 kilometers above the same spot on the earth at all times. Because of this high orbit each satellite is able to see about one quarter of the earth, so only four or so are needed for global coverage. Drawbacks to these satellites are that due to the high altitude it takes a quarter of a second for signals to travel to and from the satellite, delaying the responses during a conversation. Also the higher altitude means a weaker signal so larger antennas are needed to maintain overall coverage.

The next layers of satellites are middle earth orbit (MEO) and low earth orbit (LEO). MEO satellites are generally placed in orbits above 10,000 kilometers, while LEO satellites are generally below 1,500 kilometers. Of course now with the lower altitude the signals are stronger so antenna size can be reduced, but with this also comes less coverage so more satellites are required. In the case of the LEO satellites at least 50 are usually required for full global coverage.

The reasoning behind the orbit spacing comes from the presence of the Van Allen Radiation Belt. Originally discovered by Explorer I, the Van Allen Belt is composed of energetic ionized particles, which could damage solar cells and perhaps other solid state components. The belt spans altitudes roughly between 1,500 and 10,000 kilometers, thus the spacing.

Another application changing our lives is the Internet. This is a technology basically still in its infancy. The Internet has brought many resources to within the fingertips of the population, such as research, publishing, government services, education, entertainment, shopping, and financial services including investments and banking. Though the largest of these resources now made available is e-mail. E-mail was the introductory item that helped users become more familiar with this new medium. As of 2000 e-mail has become a regular or routine part of everyday activity for 80% of all U.S. households.

Though as more people start using these technologies and the types of data and files they transmit change, including graphic material and streaming video, the more strain is being put on the carrying capacity. With this information providers of these services now face the dilemma of how to increase their capacity. The answer seems to be through satellite, as in 1998 alone commercial satellite operations included 1,700 payload launches.

Though satellites have had a tremendous effect on how we communicate with one another, one other aspect that they bring to the table is a quality of life issue. Many health and emergency response teams, including the American Red Cross have adopted satellite technology within their means of communication in times of trouble, especially in remote areas.

In 1995, Hurricane Marilyn devastated communications in the Virgin Islands and Puerto Rico. The only reliable means of communication at the disposal of the American Red Cross was INMARSAT satellite technology. Satellite phones were used for voice and fax transmissions, as well as data transmissions and packet switching, primarily for disaster welfare inquiries and contacting people to let them know their relatives were okay.

Most industry in America has begun integrating wireless, and satellite technologies into their daily routines. This can be seen in everyday life as FedEx employees use wireless handheld devices to help track packages, and determine sender and receiver information to help organizations conduct business more efficiently. To Hertz car rental employees pulling up driver and car rental information in a parking lot, several hundred feet away from their stationary computers.

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