The X band ranges from 8.0–12.0 GHz. It is part of the microwave band of the electromagnetic spectrum. The X band is used by some communications satellites and by X-band radar. The 3-cm radar spot-band roughly ranges from 5.2–10.9 GHz.
The term is also used informally to refer to the Extended AM broadcast band.
X-Band was also the name of an online gaming add-on for the Super NES and Sega Genesis gaming systems.
Gamma ray | X-ray | Ultraviolet | Optical spectrum | Infrared | Terahertz radiation | Microwave | Radio waves
Optical (visible) spectrum: Violet | Indigo | Blue | Cyan | Green | Yellow | Orange | Red