this post was submitted on 26 Mar 2025
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GPS and Galileo satellites are in MEO, not GEO. GEO is a very specific altitude to keep a satellite directly over the same spot on Earth at all times (synced to the spin of Earth). MEO, on the other hand, is a wide range of altitudes roughly half the altitude of GEO. GPS sits right around 9800 nautical miles, which is 11200 miles. That's still really far away, so your point stays the same. Galileo is in a similar orbit, I think around 200 miles lower but I can't remember. GLONASS is there, too. Beidou from China has birds in both MEO and GEO. QZSS from Japan uses one GEO bird and three birds in a highly inclined orbit at GEO altitude.
Your two points are good. I think a third point would be that this is a different RF spectrum, while GPS and Galileo are on roughly the same RF spectrum. Jamming GPS and Galileo at the same time isn't difficult. Jamming a very different RF spectrum at the same time is much harder.