The University of Hawaii at Manoa’s radio station, KTUH, will change its frequency to 90.1 FM next month, when it more than doubles its power from a new transmitter and antenna on top of Tantalus.

KTUH currently broadcasts at 90.3 FM in Honolulu and 91.1 FM on Oahu’s North Shore, but that’s not enough to give it islandwide listenership, says KTUH General Manager Nick Ciuffetelli.

The student-run station, first broadcast in 1969, hopes to complete installation of a new antenna and a transmitter, boosting the station’s wattage from 3,000 to 7,000 watts.

“Our stable signal will give listeners access to non-commercial, diverse programming — something KTUH prides itself on,” said Paige “DJ Mermaid” Okamura, who hosts the “Kai Leo Nui” show from 3-6 p.m.Thursdays.

The 91.1 FM translator frequency will remain to serve pockets on the North Shore.

The project has been in the works since 2006, with fundraising begun three years later.