“It would be impossible to have regional GPS outages if the GPS system were satellite based.
This is evidence that GPS is ground based. It is merely an extension of an earlier technology (WWII) named LORAN.
You can test this by driving south into Mexico from California. You GPS signal will diminish and disappear as you drive south.
“
One of the dumbest posts ever.
So, what is your explanation for the signal disappearing as you drive south into Mexico?