Radar and Satellite Communication Frequencies

Radar and satellite communication systems utilize high frequencies for their operations. These frequencies fall within the super high frequency (SHF) range, which typically ranges from 3 to 30 gigahertz (GHz). Among the given options, option 'B' falls within this range, making it the correct answer.

Explanation:

Super High Frequency (SHF)
- Super high frequency (SHF) is a range of electromagnetic frequencies that spans from 3 to 30 gigahertz (GHz). It is also sometimes referred to as the centimeter band due to the wavelengths being in the range of 1 to 10 centimeters.
- SHF frequencies are commonly used in various applications, including radar systems, satellite communication, microwave ovens, wireless local area networks (WLANs), and more.

Radar Systems
- Radar (Radio Detection and Ranging) is a technology used to detect and track objects by transmitting radio waves and analyzing the reflected signals. It is widely used in military, aviation, weather forecasting, and traffic control.
- Radar systems typically operate in the SHF range due to several advantages such as higher resolution, increased accuracy, and reduced interference from atmospheric conditions.
- The SHF range provides a balance between signal attenuation and atmospheric absorption, making it suitable for long-range radar applications.

Satellite Communication
- Satellite communication involves the use of artificial satellites to relay signals between two or more locations on Earth. It is widely used for television broadcasting, telephone calls, internet connectivity, and remote sensing.
- SHF frequencies are commonly used in satellite communication due to their ability to provide high data transfer rates and large bandwidths. These frequencies allow for the transmission of a large amount of information, making them ideal for applications that require high-speed data transfer.
- Additionally, SHF frequencies experience less interference and have a higher resistance to rain attenuation compared to lower frequency bands, making them suitable for reliable and efficient satellite communication.

Conclusion
In conclusion, super high frequencies within the range of 3 to 30 gigahertz (GHz) are used in radar and satellite communication systems. These frequencies offer advantages such as higher resolution, increased accuracy, larger bandwidths, and better resistance to interference and atmospheric conditions.