No offense meant by my seemingly racial based comment (it's not) but I'm suspect of that pirate, especially in that area. Drug runners are notorious for using radio in creative ways, in fact on CNBC tonight they had a show on the American/Colombian cartels & how they used many types of radio- including beacons, in their line of work. They still utilize radio, the Mexicans force engineers to build them towers, then dispose of the engineer when he's no longer needed.