Title: A Primer on Satellite Communications

Essay Details

Subject: Technology
Author: Kirk M
Date: July 7, 2016
Level: University
Grade: B
Length: 42 / 12452
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

The period of revolution is equal to the period of rotation of the earth with respect to the stars, or 23 hours 56 minutes 4.1 seconds, and thus by Kepler's third law the orbital radius is 42,164 km. Taking into account the radius of the earth, the height of a satellite above the equator is 35,786 km...

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He worked out a simple link budget, assuming a downlink frequency of 3 GHz, and estimated that the required transmitter output power for broadcast service to small parabolic antenna receivers would be about 50 watts. Electric power would be provided by steam generators heated by solar mirrors, but advances in technology might make it possible to replace them by arrays of photoelectric cells...

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