He could probably set back research a bit while researchers figure out what he's doing, but not that long. Also, unless he's operating from right near one of t

He could probably set back research a bit while researchers figure out what he's doing, but not that long. Also, unless he's operating from right near one of these radio astronomy observatories, he would likely be violating FCC or similar regulations in doing this and would face legal action against him once sufficient evidence had been collected.