This article is about the microwave spectrum. For the band called X, see X (band)

For the Super Nintendo and Sega Genesis online adapter, see XBAND

The X band, ranging from 8 to 12 GHz, is part of the microwave band of the electromagnetic spectrum. The X band is used by some communications satellites and by radars primarily for fire control, science and technology applications. The 3 cm radar spot-band ranges roughly from 5.2 to 10.9 GHz.

The term is also used informally to refer to the Extended AM broadcast band.

Microwave bands