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What is the reason for carrying multiple transponders in a satellite?

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What is the reason for carrying multiple transponders in a satellite?

(a) More number of operating channel

(b) Better reception

(c) More gain

(d) Redundancy

I had been asked this question during an interview.

The above asked question is from Satellite Communication Systems topic in portion Satellite Communication of Avionics

1 Answer

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Right choice is (a) More number of operating channel

Easy explanation: To be economically feasible, a satellite must be capable of handling several channels. As a result, most satellites contain multiple transponders, each operating at a different frequency. Each transponder represents an individual communication channel.

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