KMVK (107.5 FM, "La Grande 107.5"), is a commercial radio station licensed to Fort Worth, Texas and serving the Dallas/Fort Worth Metroplex. The station is owned and operated by Audacy, Inc. KMVK broadcasts in Spanish and airs a radio format featuring Regional Mexican music. The station's studios are located along North Central Expressway in Uptown Dallas and the transmitter site is in Cedar Hill. KMVK has an effective radiated power (ERP) of 17,000 watts. Its signal is limited in that most Dallas-Fort Worth area FM stations run at 100,000 watts, but KMVK broadcasts from a tall tower at 574.2 meters (1,884 feet) in height above average terrain (HAAT), which helps improve coverage in the surrounding suburbs of Dallas and Fort Worth. The station broadcasts in HD; its HD-2 signal carries a Tejano music format known as "Fierro", while Latin pop music is heard on its HD-3 signal, known as "Dale!." History KNOK/KDLZ On February 18, 1965, the station signed on the air as KNOK-FM, an R&B and Soul music station. It simulcasted its AM sister station KNOK (now KHVN), with both stations owned by the Chatham Corporation. The station was later sold to Black Enterprise magazine founder Earl G. Graves Sr. under the company name EGG Dallas Broadcasting Inc. (EGG are Graves' initials). KNOK-FM originally broadcast with 100,000 watts but from a tower only 450 feet in height above average terrain. In 1985, the station became KDLZ while retaining its R&B format. The coverage area was increased and the studios were moved to Cedar Hill after the original studios in Fort Worth were destroyed by fire. EZ 107.5/The Oasis In December 1988, Gilmore Broadcasting purchased KDLZ. On December 23 of that year, Gilmore picked up the easy listening format and KMEZ call letters from 100.3 FM (now KJKK) and moved them to 107.5. The station was then sold to Granum Communications in 1991; on July 4 of that year, Granum flipped the station and format to KCDU ("CD 107.5") with a short-lived classic rock format. A Smooth Jazz format began on November 2, 1992, moving over from 106.1 FM (now KHKS). The smooth jazz station took the call letters KOAI as "The Oasis." (The KMEZ call letters are now assigned to a New Orleans station, which airs an Urban Adult Contemporary format.) In 1996, KOAI was one of three radio stations that fell victim to the radio tower collapse in