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Related question: What's the tech here that this can be accomplished (streaming data via satellite) without spectrum? Spectrum assets are some of the most valuable assets in the US (and are owned by Verizon et al). Satellite phone networks (LightSquared is the big one) have been stymied in the past by unavailability of spectrum and US Govt. concerns about interfering with GPS.

Is that not a problem in this case?

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They're using frequencies in the 10.7 to 30.0 GHz range (GPS is much lower at 1.575 GHz) that are already allocated to satellite operations. However, they do have to share these frequencies with others. You can read all the frequency stipulations in the FCC authorization.

https://docs.fcc.gov/public/attachments/FCC-20-102A1.pdf

For example, operation at 27.5 to 28.35 GHz overlaps a 5G millimeter band in the US. 5G is primary and satellite uplink is secondary in that band, so if Kuiper interferes with a 5G installation, they can be ordered to mitigate the interference (possibly by stopping transmissions).

Lightsquared bought satellite spectrum close to gps, and then did some shady stuff to get terrestrial use approved. This was an attempt to arbitrage the difference between cheap satellite spectrum and expensive terrestrial spectrum. It should never have gotten as far as it did but businessmen and regulators didn't understand the science/technology.

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