A gold color metal and enamel insignia 1 3/16 inches (3.02cm) in height consisting of an equilateral triangle with arced, convex sides, one point down evenly divided diagonally from upper right to lower left orange and blue, the, left side surmounted by a representation of a microwave dish-type antenna, white with gold ribs emitting on the diagonal partition line between four white six-pointed stars, two and two a gold lightning flash; issuing from the top of the triangle nine gold concentric rays, five long alternating with four shorter rays; all above a gold scroll inscribed "QUALITY ALL WAYS" in black letters, the base of the triangle extending slightly on to the scroll.
The microwave antenna represents equipment for sending and receiving communications; the lightning flash stands for a radio signal. Together they refer to the Battalion's mission of operating and maintaining signal facilities and service. The gold rays represent the Northern Lights, the Aurora Borealis; they commemorate the Battalion's service in Alaska during World War II for which it received the Meritorious Unit Commendation. The arrangement of four white stars simulates the Southern Cross, famous constellation of southern skies which is visible from Vietnam; it refers to the Battalion's war service in that country. The colors orange and white are used for units of the Signal Corps. The gold color represents the precious metal gold, symbol of quality and value. The three sides of the triangle, six points of the stars and nine rays of the Lights also allude to the Battalion's numerical designation.
The distinctive unit insignia was approved on 18 May 1970.