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Developed in 1964, the AN/PRT-4 transmitter (R) and AN/PRR-9 receiver (L) were the first attempt at a lightweight radio for individual soldiers in a squad. Sent to Vietnam in 1967, the radio duo proved a flop, being prone to system failure in the hot, humid tropical conditions. Transmitted at 47 to 57 MHz.
AN/PRC-47 command radio. Developed for the US Marine Corps in the early 1960s by Collins Electronics, this waa a static command radio used by HQ units of various kinds. The radio was used by all three major services during the Vietnam War. It was an HF radio.
Rob Benson on Instagram: "3-3-3 Radio Plan In an emergency, when traditional communication fails, turn to your FRS or GMRS radios. The 3-3-3 radio plan is your simple communication strategy: First 3 minutes of every hour: Use your radio for the first three minutes of each hour. Channel 3: Use channel 3 for GMRS (FRS radios typically have consistent channel numbering). Transmit every 3 hours: Communicate every three hours to create regular intervals for contact. This plan helps you…
