Question

In satellite communication, the uplink frequency band used is :

• A. 76 – 88 MHz
• B. 3.7 – 4.2 GHz
• C. 5.925 – 6.425 GHz
• D. 420 – 890 MHz

Answer 1

The Correct Option is C

In satellite communication: 

• The uplink frequency band is used for transmitting signals from an earth station to a satellite.
• The downlink frequency band is used for transmitting signals from a satellite to an earth station.

Uplink frequencies are generally higher than downlink frequencies to minimize interference.

Common Standard Frequency Bands:

• Uplink: \( 5.8 - 6.2 \, \text{GHz} \)
• Downlink: \( 4.0 - 4.2 \, \text{GHz} \)

Analysis:

The frequency band \( 5.925 - 6.425 \, \text{GHz} \) falls within the standard uplink frequency range for satellite communication.

Final Answer:

The uplink frequency band used in satellite communication is \( 5.925 - 6.425 \, \text{GHz} \).