X-band is frequency band used in satellite communication that covers a range of approximately 8 to 12 gigahertz (GHz) in the electromagnetic spectrum. The “X” in X-band stands for “eXtreme,” signifying its higher frequency compared to other communication bands.

Satellites equipped with X-band communication systems offer several advantages, making them suitable for various critical applications, including military and government communications, radar imaging, scientific research, and high-security data transmission. The X-band’s characteristics, such as its relatively narrow bandwidth and high data transfer rates, enable it to deliver precise and high-resolution data for specialised purposes.

One of the key strengths of X-band is its resistance to atmospheric interference, particularly rain attenuation. This resilience allows X-band communication to maintain a stable and reliable connection even in regions experiencing adverse weather conditions. As a result, X-band is commonly used for military and defence applications, where secure and consistent communication is essential.