The SCR-300, designated AN/VRC-3 under the Joint Electronics Type Designation System, was a portable frequency modulated (FM) radio transceiver used by US Signal Corps in World War II.

The development of the U.S. Army’s “Walkie-Talkie” SCR-300 WW2 radio backpack was a game-changer for frontline troops.

"Radio Set SCR-300-A Consists of an 18-tube, low-power, dry battery operated, portable radio receiver and transmitter and accessories. It is designed for frequency-modulated, two-way communication over short distances.

World’s first FM portable two-way radio. The SCR300 radio, the first and only portable FM radio used by infantry soldiers, was used widely throughout Europe and the Pacific. The walkie …

TM 11-242 Radio Set SCR-300-A, 1943-06-15 TABLE OF CONTENTS SECTION I Description General 1 Radio Set SCR-300-A, Components, with Weights and Dimensions...

Apr 22, 2022 · The equipment included something that would go on to become a common-place in civilian life – the walkie-talkie portable radio, also known as the SCR-300. The SCR-300 World War II-era version...

The final result was the first of these walkie-talkies, the SCR-300, a backpack VHF (40 to 48 MHz) FM transceiver that could reliably reach out 5 miles in the field.

The Signal Corps designated this communications equipment as a portable infantry battalion transceiver nomenclatured SCR-300. We soon realized that this was a specification document to design and develop a portable, frequecy modulated …

The SCR-300 was a portable radio transceiver used by US Signal Corps in World War II. This backpack-mounted unit was the first two way radio to be nicknamed a "walkie talkie". [1]

FM transceiver, back-pack or mobile, 40 - 48 MHz, TX rated output 0.5W. Transmission range up to 3 miles. Power supplied by BA-70 or BA-80 batteries. Uses 10'8" (325 cm) whip ant, or 33" (84 cm) whip ant end loaded. Also RC-291, RC-292 and RC-296 ground-plane antennas available.