Insignia Description
A silver color metal and enamel device 1 inch (2.54cm) in height overall consisting of a shield blazoned: Paly Argent and Sable two piles Tenné issuant from dexter and sinister chief meeting in nombril point each charged with a war horn of the first, those portions of the subordinaries which meet color fimbriated Silver.

Symbolism
White and orange are for the Signal Corps. The six pieces of the shield symbolize service in the unit's campaigns during World War II. Ancient armies were summoned to the levies and ordered to move at the signal of the war horns. As symbols of the military function, the two piles, recalling the organization's signal duties in two theaters of operation in World War II, are each charged with a silver war horn.

History
The distinctive unit insignia was approved on 28 Sep 1955.

Source: The US Army Institute of Heraldry