broadcast facilities in the VHF/TV range bands benefit most from what's called HAAT - height above average terrain. This is why the midwest has 1800' tall guyed

broadcast facilities in the VHF/TV range bands benefit most from what's called HAAT - height above average terrain. This is why the midwest has 1800' tall guyed broadcast towers in places that don't have any conveniently placed mountains. And why the broadcast sites near Seattle and Vancouver are all on mountains, or at least large-ish sized hills. https://en.wikipedia.org/wiki/Height_above_average_terrain https://en.wikipedia.org/wiki/Height_above_average_terrain