 Construction began on the of land in 1940 and was scheduled to be completed in 1942.During that time, the station at Wahiawa was considered the most important of a number of Naval Radio and Air Stations being constructed as a part of a general expansion program.On December 7, 1941, a few minutes before 0800, several squadrons of Japanese aircraft passed over the Lualualei Transmitter Site on their way to bomb Pearl Harbor.