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Atmospheric window region is used for

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Atmospheric window region is used for

(a) Satellite communication

(b) Deep-space communication

(c) Satellite & Deep-space communication

(d) None of the mentioned

This question was posed to me during an interview for a job.

My question comes from Noise Parameters topic in chapter Communication Link Analysis of Digital Communications

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Correct choice is (c) Satellite & Deep-space communication

The best I can explain: The region between 1GHz and 10GHz is called as space window or atmospheric window. Here the temperature will be the lowest. This region is used for satellite communication and deep-space communication.

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