At the urging of the city of Albuquerque, Whitmore, who lacked experience in running a radio station, sold KGGM in March 1929 to the New Mexico Broadcasting Company, headed by Anton Hebenstreit.
Whitmore, who had no experience in running a radio station, made the decision to sell KGGM in March 1929 after being encouraged by Albuquerque's municipal authorities to do so. The sale was then completed when he handed over control of the station to Anton Hebenstreit and the New Mexico Broadcasting Company.