Man-made radiation is not Elint intell, right?
Maybe the new platforms can do.......I don't know.
That's why, when conflict in imminent, intelligence officers on the ground in enemy areas buy, rent, steal backhoes.
Then they cut long sections of the enemy's fiber optics, coax and twisted pair copper. Then we target any repair crews. As soon as we force them up on the air, we got’em!