The new WWII Fort Ward Naval Radio Receiving Stations and Battle Point Naval Transmitting Station was established on Bainbridge Island, across Puget Sound from Seattle, at a cost of $3,219,104.

The U.S. Navy relocated a secret radio listening post from Fort Stevens, Oregon, to Fort Ward on Bainbridge Island in Puget Sound on September 1939, as the location provided exceptional radio operations. The radio post was named "S" and call letters NPC, began monitoring Japanese radio activies in 1940 and continued during Keoran War. Including communications between other Puget Sound Naval Installations, def finder operations and marine traffic control and Submarine net Operations in Riches Passage

On November 1, 1952, the Naval Radio Station at Marietta was commissioned. On March 15, 1953, four months later, the facility at U.S. Naval Security Group Activity (NSGA) Bainbridge, Washington State closed and mission functions and responsibilities were transferred to NSG Det Marietta. On March 1972, NSGA Marietta was decommissioned and closed in March, 1972. This was the first Navy Wullenweber site to be closed and ceased operations.

In 1953 the Jim Creek Naval Radio Station was under construction as very low frequency (VLF) radio transmitter facility near Oso, Washington.