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Nestor Aparicio

Male-dominated sports radio finding target audience

Male-dominated sports radio finding target audience

Bob from Parkville was on the air, his voice filled with remorse.

A day earlier, he had agitated on WJZ-FM (105.7 The Fan) for the Ravens to place former linebacker O.J. Brigance, who has amyotrophic lateral sclerosis, or Lou Gehrig's disease, in their Ring of Honor.

"We get it. … You're passionate," said Scott Garceau, one of the sports radio station's hosts, after listening to several earnest apologies.

Well known to listeners, "Bob" is far from the only regular caller on 105.7, the most popular of Baltimore's three stations devoted solely to sports, a format growing nationally and holding its own in the city. With its abundance of familiar...