A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Tenn a fess wavy Azure fimbriated Argent, issuant from base palewise over all the heads of three Micronesian arrows with shafts barbed each of six of the third. Attached below the shield a Silver scroll inscribed "COMMUNICATIONS FIRST" in Blue letters.
The colors, orange and white, are for the Signal Corps. The arrowheads are of the type used in the Pacific area in which three assault landings were made. The wavy blue band is an allusion to the overseas location of the battalion at the time of its activation, and the total number of charges corresponds to the four battle honors earned by the organization.
The distinctive unit insignia was originally approved for the 16th Signal Battalion Corps, on 11 July 1952. It was redesignated for the 16th Signal Battalion on 12 December 1958.