Bob Branson (KUT photo)

Longtime 90.5 KUT-FM radio host Bob Branson announced his official retirement Monday.

A fixture at the city’s NPR affiliate for 30 years, Branson hung up his headphones a few weeks ago.

Branson is currently battling cancer, the station said, and retirement will enable the former afternoon host to spend time traveling and biking with his wife, Fran.

“His short-term prognosis is good and his good humor is very much intact,” the station said in a message to listeners.

Branson first joined KUT in 1986 as a volunteer, taking on a number of new responsibilities over the years. Before departing, he most recently had hosting duties from noon to 4 p.m. weekdays.

“We will miss his sharp wit and word play, including his delivery of, “‘BBC Newshour’ is coming up after ‘The World’ ends at 3,’” with a sly grin you could almost hear,” the station said in its listener message.

A search is underway for a new afternoon host, KUT said.