The new package, which was created by the Radio Production Company and launches next week, will see the station move towards a more youthful and upbeat sound.
Gaydar, which was recently voted Best Radio Station in the BT Digital Music Awards, will also adopt a new tag, Passionate About Music, which will be supported by a new range or idents and jingles.
"Our new imaging reflects just how much gay music remains at the leading edge of dance music trends," said Robin Crowley, programme controller.
"When we first started out we were primarily a middle of the road pop station playing just about everything from Streisand to Elton John. Nowadays however, gay music has moved substantially away from disco and pop towards funky house music, which makes up the core of our playlist today, together with commercial electro and the gay end of pop."