With reference to Direct to Home (DTH) satellite transmission, what is the difference between C-Band transmission and Ku-Band Transmission?
1. The uplink and downlink Frequency range of the C-Band is much smaller than the Ku-Band
2. A larger disc is needed for Ku-Band transmissions compared to C-band transmissions
3. C-band is generally not interfered with the microwave links and other technologies
Select the correct option from the codes given below:

Answer: [A] Only 1 is correct

The first statement is correct because the frequency used in C-band is smaller ( 3.7 – 4.2 GHz Uplink) than the Ku-Band (10.95-14.5 GHz).

The other two statements are incorrect, please note the following: Due to low frequency, there is lesser possibility of disturbance from heavy rain fade  in the C-Band, while in Ku-Band, due to high frequency, there is an attenuation in signal and that is why most of us find unable to view TVs during rains. Ku-Band manages with the smaller discs, compared to the larger discs used for C-Band transmission.

This question is a part of GKToday's Integrated IAS General Studies Module