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Also frequency re-use. They will talk on the same frequency to multiple ground terminals, but pointed different directions from the satellites perspective.

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Did not know that, neat. Phased arrays are so cool.

https://www.youtube.com/watch?v=qs2QcycggWU check this out, excellent teardown explanation about how the antenna works.

The math used to determine the phase offsets to steer the beam is absurd.

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