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What is the role of a transponder in satellite communication?

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Question: What is the role of a transponder in satellite communication?

Options:

  1. To amplify the received signal
  2. To convert signals from one frequency to another
  3. To modulate the signal for transmission
  4. To demodulate the received signal

Correct Answer: To convert signals from one frequency to another

Solution: 

A transponder receives signals at one frequency, amplifies them, and then converts them to another frequency for transmission back to Earth.

What is the role of a transponder in satellite communication?

Practice Questions

Q1
What is the role of a transponder in satellite communication?
  1. To amplify the received signal
  2. To convert signals from one frequency to another
  3. To modulate the signal for transmission
  4. To demodulate the received signal

Questions & Step-by-Step Solutions

What is the role of a transponder in satellite communication?
Correct Answer: A transponder receives signals at one frequency, amplifies them, and then converts them to another frequency for transmission back to Earth.
  • Step 1: A transponder is a device located on a satellite.
  • Step 2: It receives signals from Earth at a specific frequency.
  • Step 3: The transponder amplifies (makes stronger) these received signals.
  • Step 4: After amplifying, it changes the frequency of the signals to a different one.
  • Step 5: Finally, the transponder sends the modified signals back down to Earth.
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