Interception of radio signals from the surface by satellites is trivially easy. Precise location of the transmitter is likewise trivially easy.
I think I recall that Voyager 1's transmitter is like eleven watts or some such ridiculously tiny amount. That thing's like a dozen bazillion miles away. We're still receiving.
“Interception of radio signals from the surface by satellites is trivially easy. Precise location of the transmitter is likewise trivially easy.”
Easily the most ridiculous statement in the discussion so far... And that’s quite an accomplishment.