A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Chequy Argent and Tenné, on a pale Sable, a lion rampant Or, on a chief of the second, five signal horns of the first, three and two, all fesswise. Attached below and to the sides of the shield a Silver scroll inscribed "VOX FERRORUM" in Black letters.
The colors orange and white are for the Signal Corps. The chessboard pattern is based on the new Signal Grid System and also alludes to the Battalion's tactical flexibility and strategy as used in the game of chess. The organization's active participation in the invasion of Belgium and three of the four decorations given them for service in Belgium during World War II are symbolized by the colors black and gold and the lion rampant, both taken from the coat of arms of Belgium. The four divisions of the field allude to the four decorations given the organization. The horns, five in number for the five campaign honors earned by the Battalion in the European Theater, World War II, are a variation of those needed in the Old German Post System and allude to the organization's area of activation, Germany, as well as their mission of communication. The motto translates to ''We Hope, As The Voice of Iron.''
The distinctive unit insignia was approved on 11 September 1958.