Someone asked what it is. It is a way to get a digital signal on the same channel with the conventional AM or FM signal. The letters stand for "In Band On Channel." The receivers right now are mostly prototypes, but that will change probably later this year. The International Association of Audio Information Services (that's the organization of Radio Reading Services) is in ongoing dialog with a few manufacturers encouraging them to build fully accessible digital receivers. Otherwise, as with cell phones, we'll spend the next generation playing catch up. Mike Duke, K5XU American Council of Blind Radio Amateurs