A PRC-316 (SR A16), small light-weight patrol transmitter and receiver set for use by Special Forces during the mid-late 20th Century, dated 1967. With antenna wires & transducer (earpiece & microphone)
This equipment was introduced in 1969, and was first used in Operation STORM, the campaign in Dhofar, 1970-1976. The antennae wires & the transducer are from more recent models, but work adequately. The radio was referred to as '316'. It worked on the HF range, 2 to 7 megahertz, & had 45 channels. It was, to certain operators, somewhat restricted in frequency selection & working range. Yet it was lightweight, and fairly compact. The battery was of a disposable type, power output was only 4 watts, & the '316' operated on both voice & CW. Its performance was superior in the CW mode. Messages were encoded on a one time pad before transmission by key. The wire antennae were played out to a marker relating to the chosen channel. The antennae were given some height by throwing the attached line, weighted at the end, over a branch. It was particularly suited to operations in the jungle, and was used on all jungle exercises up to the middle 1980s.