Shield
Per fess enhanced Tenn and Argent, in chief a diamond headed spear issuing from sinister fesswise of the second and in base on and over a pale Azure (bluebird) a fire beacon Proper.
Crest
On a wreath of the colors Argent and Tenn a sea lion sejant of the first armed and langued Azure, the tail encircling a Korean Taeguk Proper, the paws grasping an annulet of bamboo Or enclosing two lightning flashes palewise Gules.
Motto
LEOKANI OKAUWILA (Voice of Lightning).
Shield
Orange and white are the colors used for the Signal Corps. The blue is that of the Korean Service Ribbon. The spear, with its diamond head represents defense of Oahu on 7 December 1941, and the role of the 25th Division in spearheading the war in the Pacific. The fire signal against the three divisions of the bottom of the shield symbolizes the achievement of the unit in maintaining signal communications against three North Korean divisions in the Masan-Chinju operation in 1950.
Crest
The sea lion alludes to the Philippine Islands where the unit participated in the Philippine Liberation and was awarded the Philippine Republic Presidential Unit Citation. The Taeguk refers to Korea where the organization participated in ten campaigns and was decorated with two Meritorious Unit Commendations and two Republic of Korea Presidential Unit Citations. The bamboo and the colors red and gold refer to Vietnam where the unit participated In twelve campaigns and was awarded two Meritorious Unit Commendations, indicated by the two flashes.
The coat of arms was approved on 31 January 1958. It was amended to add a crest on 8 August 1973.