Question
a.
gives a narrow beam shining into space
b.
results in lesser signal attenuation
c.
gives better beam-shaping
d.
is easier to polarize a high frequency beam
Posted under Electronics and Communication Engineering
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. In communication satellites, the up-link normally operates at a higher frequency than the down-link because it
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. A modem is
View solution
Q. In synchronous detection of an AM signal
View solution
Q. A typical signal strength received from a geosynchronous communication satellite is of the order of a few
View solution
Q. The expression for satellite link frequencies such as 4/6 GHz denotes that
View solution
Q. Assuming a minimum angle of elevation of 5°, a geosynchronous satellite remains in line-of-sight for __________ percentage of Earth's surface.
View solution
Q. After the death of INSAT-IB, the mainstay of the entire Indian satellite network for some time to come would be
View solution
Q. Which statement out of the following statement is wrong?
View solution
Q. For satellite transmission, analog signals may be converted into digital form with the help of
View solution
Q. The maximum signal propagation time of a geosynchronous satellite transmission is about __________ millisecond.
View solution
Q. The life time of a geosynchronous communication
View solution
Q. The noise temperature of sky is about __________ °K.
View solution
Q. Assuming earth to be a sphere of radius 6400 km and height of a geosynchronous satellite above Earth as 36000 km, the velocity of a geosynchronous satellite is __________ km/hr.
View solution
Q. In the context of error detection in satellite transmission, ARQ stands for
View solution
Q. To cover all inhabited regions of the Earth, the number of geosynchronous communication satellites required
View solution
Q. The different access methods which permit many satellite users to operate in parallel through a single transponder without interfering with each other as
View solution
Q. When a communication satellite passes into Earth's shadow, its temperature drops to about __________ ° K.
View solution
Q. In envelope detection of an AM waveform
View solution
Q. Shannon's Law relates
View solution
Q. India's first three-axis stabilised geostationary communication satellite is
View solution
Q. Point out the false statement.
Launching of geostationary experimental communication satellite has helped India to gain experience in
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Electronics and Communication Engineering? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
