Well, there just so happens to be such a thing that allows you to see RF...it only requries about 3 acres and 250 antenna elements, a supercomputer and a fast internet connection.
|The LWA near the VLA|
|LWA Dipole Detail with the VLA in the background|
Another cool thing it can do is plot spectrum over the whole day:
Ckeck out their website at www.phys.unm.edu/~lwa/lwatv.html and read technical information about the LWA here, and an even more technical dissertation here.