IEEE Spectrum September 28, 2018
A company based in the US has built massive communications satellites. The spot beams produced by antennas onboard focus in slightly different directions, allowing the same spectrum bands to be used multiple times without interference. Spot beams ultimately function similarly to cell towers. Eventually, the 18V and 19V will look down on Earth with their spot beams and wide beams. The 18V and 19V use the Ku (12 to 18 gigahertz) and Ka (26 to 40 GHz) bands for their spot beams and wide beams…read more.
Hi-Def Broadcast: Telstar 19V’s spot beams will improve data rates across the Americas CREDIT: Photo: SSL