Insignia Description
A Silver color metal and enamel device 1 1/4 inches (3.18 cm) in height overall consisting of a shield blazoned: Per fess Argent radiant of six from fesspoint two Gules between four Sable and Argent, a tiger face Proper grasping a lightning flash fesswise Tenné within a crescent of the first triple fimbriated Vert, Gules and Sable. Attached below the shield a Red scroll inscribed "FIRST VOICE HEARD" in Silver.

Symbolism
Orange and white (silver) are the colors of the Signal Corps. The rays in chief, suggested by the State flag of Arizona, allude to the battalion's home station, Fort Huachuca. The rays are thirteen in number in reference to the total campaign credits earned in two wars. The two red sectors refer to the battalion's Meritorious Unit Citations, and the black and white rays refer to the knowledge required for night and day signal operations. The tiger symbolizes Vietnam, site of the unit's first wartime service. The lightning bolt connotes electronic communications and speed of response. The crescent, outlined in the colors of the Kuwait flag, represents the Persian Gulf region, site of the unit's second wartime service.

History
The distinctive unit insignia was authorized on 20 June 1966. The first design of the insignia was rescinded and a new design authorized on 27 August 1996. The distinctive unit insignia was amended to correct the description on 7 December 2001.

Source: The US Army Institute of Heraldry