He served on the U.S. delegation to numerous international radio conferences, including the 1937 Inter-American Radio Conference in Havana, at which the North American Radio Broadcasting Agreement was negotiated.
Jett was selected for the Naval Postgraduate School - Test Pilot School Cooperative Education Program in July 1986, and completed 15 months of graduate work at Monterey, California, before attending the U.S. Naval Test Pilot School in June 1989.