A few days ago, I commented on Lou Frenzel's Electronic Design article about the crowded radio frequency "market" that allows many signals to fly through the air at will. That's no longer possible, of course. That fact was shown on the frequency chart I posted in that blog.
Now, here we have another article In EverythingRF (with no author given). It details exactly how DARPA will keep the signal callers and receivers in their proper places. They are often very sloppy using the valuable spectrum, Often this is their own fault. It is one of many spectrum usage problems. Read the informative article below to educate yourself.
It's a keen idea, if they can implement it properly.