UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Satellites are not restricted to areas or frequencies as they have global coverage and transmit microwaves.
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Cable broadcasts are limited to areas of infrastructure provision.
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It cannot!
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Radio waves are dependent on frequencies available.
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Detailed explanation-1: -Satellite communications play a vital role in the global telecommunications system. Approximately 2, 000 artificial satellites orbiting Earth relay analog and digital signals carrying voice, video, and data to and from one or many locations worldwide.
Detailed explanation-2: -Communications satellites are used to send and receive radio signals for television, phone or internet communications. Large concave reflectors called satellite dishes are normally used to send and receive these signals.
Detailed explanation-3: -Satellite TV helps deliver signals in areas where customers may not be served by cable television or “terrestrial” broadcasting. Satellite TV generally uses two different frequency sets to deliver signals. One is the Ku band, a dedicated channel for satellite TV communications.
Detailed explanation-4: -Satellites communicate by using radio waves to send signals to the antennas on the Earth. The antennas then capture those signals and process the information coming from those signals.
Detailed explanation-5: -Why are high frequencies used for most satellite communication applications? Higher frequencies permit the use of smaller antennas, especially ones which can be “aimed” in a particular direction (why send a signal to anyplace where the receiver is not?)