The higher data rates come from the fact that there is a lot more spectrum available in the v band. From what I remember there is about 4 to 5 gigahertz usable

The higher data rates come from the fact that there is a lot more spectrum available in the v band. From what I remember there is about 4 to 5 gigahertz usable there. Ka-band has about 2-3GHz, and Ku about 1. as you mentioned, attenuation is one of the factors why you wouldn't use v band. Another reason is that it uses quite a bit more power, and the RF electronics are much more expensive and rare.