Once a signal is transmitted into freespace, about all that can be determined is the polarity it was received at, the approx. frequency it was transmitted at and the direction it came from. Super computers might be able to analyse probabilities of types of antennas used and most likely source location but these are not laser beans so they will bot be spot on. Once it hops, polarity tells you nothing although rotating polarity would indicate a satellite source which would easily be pinpointed (this is probably more in line with the homeland security mission). But to estimate transmitter power? It would be a rough estimate indeed based on probabilities of varying confidence level.
## The fcc method is just to triangulate the "offending" signal... then once they know where
he lives..the rest is simple. Just park outside..and do a filed strength test. then knock on the door..and tell joe ham to tune up with a 1.5 kw cxr. Now if the field strength reading is lower the 2nd time around.... joe ham is screwed. If the original FS reading is say 7 db louder.. then it's simple maths. 7db = 5 x so 5 x 1500= 7500 watts...gotcha.
## If they have his call sign...the no need to triangulate...just look up his address in the data base.. and go over there. He will then be forced to sell his amp to somebody else..so the problem will just shift else where. lol