The A’s, which were heard this season on a couple of low-wattage AM stations, are switching to FM. The team has announced that CBS Radio’s Free FM (KIFR) 106.9 will broadcast all 162 regular season games and 15 training games for the next two seasons. Last season the team was heard on CBS Radio’s KYCY-AM 1550 and Salem Communication’s KNTS-AM 1220. While it’s unusual for an FM station to air baseball games, it’s not unprecedented. The Atlanta Braves and Washington Nationals also have FM flagships. And this year, the 49ers are on both AM and FM stations — KNBR 680 and 1050 and The Bone (KSAN-FM) 107.7, all properties of Susquehanna Radio. The A’s will bring back its radio broadcast team of Ken Korach, Vince Cotroneo and Ray Fosse. Robert Buan returns for his eighth season hosting the team’s “Extra Innings” post-game talk show.