The radio broadcast went dead at the worst of all moments, and thousands of fans listening missed Barry Bonds' 715th homer. They could not hear the radio account Sunday because the microphone of play-by-play announcer Dave Flemming stopped working at precisely the wrong time. Flemming had begun the call at the beginning of Bonds' fourth-inning at-bat before his hand-held mike quit during the broadcast on the Giants' flagship station, KNBR. "Three-and-two. Finley runs. The payoff pitch, a swing and a drive to deep cen ..." -- that's all listeners got when Bonds passed Babe Ruth. "We apologize to the listeners on the radio," Giants executive vice president Larry Baer said. "We're as surprised as any of the fans listening. We have no idea what happened. Normally you have two calls of record -- television and radio. Duane Kuiper made a great call on FOX Sports Net and that will be the call of record, the call that goes to the Hall of Fame."