In my Sat column, I wrote that Clear Channel’s Kris Olinger told me that the perceived political bias of a radio network is a factor in Clear Channel’s decisions on which radio networks to air on its Denver stations.
For example, CBS news is heard on AM760, which carries Air America. Fox is heard on KOA, which broadcasts sports and conservative talk, mostly.
Olinger told me that she doesn’t think the radio networks are, in fact, biased politically. She says that journalistically all three (ABC, CBS, and Fox) have their strengths and weaknesses.
So the perception that Fox radio is biased is a carry-over from TV, not radio, she says. I couldn’t find an analysis to prove this wrong. It doesn’t look like the national network radio feeds have been studied for political bias.