And finally, passive radar depends on receiving reflections of high-powered broadcast signals off moving objects — something like the signals emanating from the 1,000,000 Watt super tower seen in this video. The acrophobic need not worry — this isn’t one of those POV videos made by a tower climber. Rather, Jeff Geerling and his dad take us on a tour of the really interesting bit: the stuff in the buildings at the foot of the tower. This particular tower hosts hundreds of customers, including several FM radio stations, and the engineering that goes into radiating that much power in a controlled manner is breathtaking. The amount of copper that went into those hardline coax sections alone is a little staggering, but those combiner boxes in the basement? Wow! We really enjoyed the fact that there’s a 50,000-Watt dummy load, too, and that it had to be mounted outdoors to save the building’s HVAC system. Really cool stuff.

Exploring a 1 MILLION Watt FM Tower
https://www.youtube.com/watch?v=6_u8x8V4YYs