Walk the corridors of the 2GB building and you'll pass a line-up of white men smiling from frames along the walls. Alan Jones smiling blithely next to Ray Hadley and Chris Smith. Ben Fordham's cheeky grin. Ross Greenwood (my boss, in the name of full disclosure, and one of the best people I know) beams down at you on the way to the studio. The studio where, all hours of the day and night, the hosts of Sydney's top-rating radio station sit, their microphones as loudspeakers to a devout audience.

If you're listening out for a female host's voice, you'll be waiting a while.