WJFF (90.5 FM) is a non-commercial, listener-supported public radio station licensed to Jeffersonville, New York and serving the Catskill Mountains of New York and Northeast Pennsylvania.

WJFF has an effective radiated power (ERP) of 3,200 watts. The transmitter is approximately two miles west of Liberty, New York, off Old Loomis Road.^[2]

In January 1988, Radio Catskill, Inc., received a construction permit for WJFF. The radio station's studio building was built on the north side of the Jefferson Lake dam. Spearheaded by Malcolm Brown and the enthusiasm of local residents, the station was constructed almost entirely by volunteer labor.

The station signed on January 20, 1990. Initially the station transmitted with a power of 830 watts. This was increased to 3,700 watts in early 1996.^[3]

1996 was also the year that Catskill Radio Inc. applied for and received authorization to build its former Monticello FM translator, 94.5 W233AH.^[4] Radio Catskill sold the translator effective November 8, 2023.

The schedule is a mix of local, national and international programming, including several NPR shows (Morning Edition, All Things Considered and Fresh Air with Terry Gross) and the BBC World Service.

• List of community radio stations in the United States

• Facility details for Facility ID 54516 (WJFF) in the FCC Licensing and Management System
• WJFF in Nielsen Audio's FM station database
• Historical articles about the station in the Spring 2005 station newsletter