A radio beam is a signal that is broadcasted is often foreign, alien or disturbing and the image coming back to her like that potentially evokes such negative emotions
Consider the statement "This image kept coming back to her, again and again, and it was foreign and disturbing.". Based on this "This image came to her like a heavy radio beam that blankets the signal you really want to pick up." a true statement? Yes, no, or I don't know?