COMPUTER NETWORKS AND COMMUNICATIONS
WIRELESS COMMUNICATION TECHNOLOGIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Strong Wifi signal
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Good reception
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Satellite telephone systems
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The government
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Detailed explanation-1: -Today’s iPhones and Androids cannot communicate directly with satellites in space. Instead, they must connect to nearby cell towers on the ground.
Detailed explanation-2: -The signal from your device transmits directly to the nearest satellite, which then sends the signal to the nearest gateway, or land-based center, which then transmits the signal to the receiving phone; the receiving phone can be a land line, cell phone or another sat phone.
Detailed explanation-3: -Microwaves are used in spacecraft communication, and much of the world’s data, TV, and telephone communications are transmitted long distances by microwaves between ground stations and communications satellites.
Detailed explanation-4: -WHICH OFFERS BETTER COVERAGE? Satellite systems offer broader coverage than cell networks. Each cell tower has a relatively short range, so it takes many towers to create a big network. But constructing a large number of towers can be costly and difficult-even impossible in remote areas.