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Consider the following statements for multiple access system in a satellite earth station: 1. Access to the same repeater sub-systems and the same RF channel is possible. 2. Frequency division multiple access is used. 3. Several carriers are not amplified by the same TWT. Which of the above statements are correct?

Consider the following statements for multiple access system in a satellite earth station: 1. Access to the same repeater sub-systems and the same RF channel is possible. 2. Frequency division multiple access is used. 3. Several carriers are not amplified by the same TWT. Which of the above statements are correct? Correct Answer 2 and 3 only

Multiple access system in a satellite earth station has the following advantage:

  • Maximize system capacity and efficiency.
  • Resource allocation and spectrum reuse can be possible dynamically.
  • The bandwidth allocation within the channel can be done by FDMA, TDMA, and CDMA.
    FDMA: Frequency division multiple access
    TDMA: Time-division multiple access
    CDMA: Code division multiple access
  • Duplexing is possible so that one user send and receive information simultaneously.
  • To amplify the carrier signals, traveling wave tubes are used individually
  • TWT is a wideband microwave amplifier that is used in satellite communication to amplify the send and received signal.

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