 KVNA has been granted an FCC construction permit to move to a different transmitter site and increase the night power to 70 watts.Today's KVNA started as KEOS, which used the slogan "Service in Sound in Northern Arizona" in the 1950s and 1960s.The station was owned by Flagstaff businessman Jack Bird and licensed to Thunderbird Broadcasting Company; the call letters stood for the initials of the first owner, E.O.