Classical radio in the St. Louis area won’t go away if KRCU-FM gets the power increase and antenna upgrade it wants. The Lutheran Church-Missouri Synod has been in talks since last spring to sell its Classical 99, KFUO-FM in St. Louis, to Gateway Creative Broadcasting, which has two contemporary Christian stations in the state. Music and news KRCU at Southeast State University, 100 miles south in Cape Girardeau, hopes to reach the southern St. Louis market with an improved repeater at KSEF in Farmington. The station applied Sept. 30 to the FCC to go from 9,500 watts to 20,000 watts, the university said in a statement this week.