WTDJ

WTDJ (89.9 FM) is a non-commercial contemporary Christian music radio station licensed to San Lorenzo, California. WTDJ is owned by the Educational Media Foundation (EMF) and broadcasts EMF's flagship programming service, K-Love.

As WKUD-FM
WKUD "Dance 89" launched on June 14, 1993. The callsign was randomly assigned. The station originally played a dance radio format as indicated by the name. This format continued until 1997 when the station flipped to a CHR format under the name "Fun 89.9". The station was acquired by Jewel Communications in August 1998.

As WTDJ-FM
WKUD "Fun 89.9" ceased playing it's CHR format on December 1, 1998 and began stunting with Christmas music. On December 26 the station continued to stunt with songs which included "DJ" in the song title or lyrics, including the Indeep song "Last Night a D.J. Saved My Life".

WKUD changed their callsign to WTDJ and flipped to an all-request format under the name "The DJ 89.9" shortly before midnight on New Year's Day 1999. The station's IDs featured a character known as "the DJ" who took requests from callers 12 hours a day.

On August 4, 2003 the all-request format ceased. Requests closed a week earlier. The station flipped to a rhythmic contemporary format "QRC 89.9" the following morning.

On April 1, 2010 the station stunted with a country format under the name "Country 89". The following morning the rhythmic contemporary format was discontinued and replaced with a variety hits format "Everything 89.9".

Sale to EMF
Jewel Communications, owner of the station at the time, sold the station, along with 4 other stations, to the Educational Media Foundation for an undisclosed sum on June 19, 2018. After the sale received final approval by the FCC, EMF announced that all 4 stations acquired would flip to their primary programming service, K-LOVE, on July 1 at midnight.

The variety hits format ceased on July 1, 2018 at midnight, as announced. The final song played under the format was "Don't Stop Believin'" by Journey. The station flipped to K-LOVE 45 seconds afterwards. The variety hits format continues in San Lorenzo on WZBU "100.1 The Buzz".