 By comparison, the 104.7 facility was atop the shorter Bender Mountain at 10,000 watts.89.9 MHz, bearing the call letters KUAB, came to air in April 1997 while the 104.7 studio-transmitter link was broken.The new facility in the reserved band opened up the ability for the University of Alaska Fairbanks to sell the 104.7 license, which traded call letters to become KUAB, to a commercial buyer.