An Analysis by The Investigative Reporting Workshop: “Only 14 percent of U.S. radio stations have gone digital, despite the fact it has been nearly eight years since the government approved the technology, according to an Investigative Reporting Workshop analysis. What’s more, the number of stations making the switch is actually decreasing, according to one report. Digital radio draws only about 650,000 of 239 million weekly radio listeners – about three-tenths of 1 percent – according to a report by Bridge Ratings released in December. Unlike with television, Congress did not mandate a switch to all-digital signals and many cash-strapped radio stations are reluctant to pay the expensive equipment and licensing fees required to go digital – despite the fact the technology represents a new revenue source for the industry.”