The Ku-band is a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from 11.7 to 12.7GHz. (downlink frequencies) and 14 to 14.5GHz (uplink frequencies).
The most common Ku-band digital reception format is DVB (main profile video format) .vs the studio profile digital video format or the full-blown Digicipher II 4DTV format.

The Ku-band downlink frequencies are further subdivided according to their assigned use:

Ku-Band Usage Downlink
  Fixed Satellite Service   11.7 – 12.2GHz
  Broadcast Satellite Service   12.2 – 12.7GHz