In all seriousness, can one or more of our pro's out here please respectfully explain what this good ole boy is doing in this video. Obviously, what he has done resulted in something. You tell me what. Since the beginning of time, I've heard of people "tuning their coax". I just want to hear from our experts here on WWDX. Specifically, what is RS, and XS on the meter, and what is happening when XS goes down? Thanks, Dean.