Question

The frequency band for uplink satellite communication in the following is

• A. \(5.9 - 6.4\ \text{GHz}\)
• B. \(54 - 72\ \text{MHz}\)
• C. \(88 - 108\ \text{MHz}\)
• D. \(540 - 1600\ \text{kHz}\)

Hint:

In C-band satellite communication: \[ \text{Uplink} = 6\ \text{GHz (approximately)} \] \[ \text{Downlink} = 4\ \text{GHz (approximately)} \] A useful memory aid is: uplink frequency is higher than downlink frequency.

Answer 1

The Correct Option is A

Step 1: Recall satellite communication frequency bands.
Satellite communication uses microwave bands. The standard C-band uplink frequency for geostationary satellites is 5.925 to 6.425 GHz (about 5.9 to 6.4 GHz). Options 2, 3, and 4 fall in the FM/AM radio range, which are not used for satellite uplink.

Step 2: Identify the correct uplink band.
\[ \boxed{5.9-6.4\,\text{GHz}} \]