Genuine US Military issue
Designed for squad-level operations, this system provided infantry units with an efficient means of relaying orders and tactical information without the bulk and complexity of traditional radio sets like the PRC-25 & PRC-77. The PRR-9 was a short-range, compact, helmet-mounted receiver that allowed soldiers to receive transmissions hands-free, improving situational awareness in combat. Meanwhile, the AN/PRT-4A was a handheld, push-to-talk transmitter carried by squad leaders or designated personnel to broadcast messages. This setup was particularly valuable in dense jungle environments, where verbal communication was often compromised by background noise and limited visibility.
The PRR-9 and AN/PRT-4A system operated on VHF frequencies and had a limited range, typically around 400 meters, making it suitable for intra-squad coordination rather than long-range communication. These radios were widely issued to U.S. Army and Marine Corps units in Vietnam, where the ability to quickly relay orders without relying on traditional radio operators significantly improved small-unit cohesion. Despite their advantages, the system had limitations, such as interference from thick vegetation and enemy jamming. For these reasons, it began to be used mainly for base security and other non-combat roles.
The transmitter is in excellent condition with some cosmetic wear as seen. It retains the original retention cord, telescopic antenna, and information plates. Dated 1967.
The receiver is in very good overall condition. There is a break in the plastic housing on one corner as seen. There are four holes filled into one side, this is likely a period modification to allow better sound transfer between the receiver and the operator. It retains its original whip antenna.
Both components are fitted with original batteries.
