What is Ka-band and what are its advantages?

Broadcast satellites principally operate in Ku-band frequencies that have the benefit of offering a broad geographic coverage through a single footprint. Ka-band, which is now beginning to be exploited over Europe, has other benefits:
More Ka-band bandwidth is allocated to each satellite by the ITU (1 GHz per orbital slot)
For dedicated two-way communications, spot beam technology allows extensive frequency reuse, effectively lowering the cost of the spectrum
The larger amount of available bandwidth supports higher transmission rates, supporting higher peak speeds for individual subscribers
The higher Ka-band frequencies allow smaller antennas to be employed for the subscriber equipment
The blanket licensing requirements for subscriber premises equipment can be more easily met with low cost subscriber terminals

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