5 ms·
> When the user's location is stable, the signal can be triangulated. That's how the Defense Department got the coordinates to feed Brazilian authorities in Mar
by codetrotter 8y ago
> When the user's location is stable, the signal can be triangulated. That's how the Defense Department got the coordinates to feed Brazilian authorities in March's raids.
Of course. But specifically how? With satellites in space? Or antennas on ground? If on ground, where? And if on ground, for triangulating these specific people or for other purposes as well? And if sattelites space, the same sattelites that are relaying the signals, or separate sattelites?
- moftz 8y agoThe exact same way as mentioned in the next paragraph: "In February of last year, FCC investigators used a mobile direction-finding vehicle to trace rogue transmissions to a Brazilian immigrant in New Jersey."
- CalChris 8y agoThe ground transmission antenna is sending a high gain signal towards the satellite. But that doesn't mean that all of the energy is directed there. Some gets scattered isotropically and a signal detection plane could triangulate off that.