The January 1916 issue of Popular Mechanics showed the portable radio transmitter-receiver. The set was designed to be strapped to the waist, and was believed to the designer, Dr H Barringer Cox, to be particularly suited for military use. The antenna and ground consisted of a wire of about 4 or 5 feet in length running to a 'canelike metal rod'. For military use, the wire could run down a trouser leg to metal spurs in a soldiers boots. The set had a range of c. 18 miles.