"The original Walkie Talkie" Topic

It's not what you normally see on TV and movies. The hand held version was actually called the "Handy Talkie' while a man portable backpack SCR-300 radio was the "Walkie Talkie".

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The SCR-300 was a pioneering World War II backpack radio transceiver developed by Motorola (then Galvin Manufacturing) that gave birth to the term "walkie-talkie".

Key Specifications and Design

Developer: Galvin Manufacturing Corporation (Motorola)Year Introduced: 1942 (first combat use in 1943)

Weight: 32 to 38 pounds (14.5 to 17.3 kg) depending on the battery pack used

Frequency Range: 40.0 to 48.0 MHz (Very High Frequency / VHF-FM)Channels: 41 distinct channels with 200 kHz spacing

Power Output: Roughly 0.3 watts

Range: Approximately 3 miles (5 km) standard, up to 5–8 miles with longer antennas

Vacuum Tubes: 18-tube design housed in a moisture-resistant metal frame with anti-fungal varnish coating

Combat Role and Impact
The SCR-300 operated under the core transceiver component known as the BC-1000. It allowed infantry units, artillery spotters, and airborne forces to maintain vital voice communications without being tethered to fragile telephone wire lines. Nearly 50,000 units were produced and deployed heavily across both the European and Pacific theaters of World War II.

The post war PRC-25 was a lighter version of the SCR-300 and had about the same performance.

Wolfhag

Interesting article. I thought it had a longer range. Range would also be effected by terrain I assume.

As featured in the 1960s 12" tall G.I. Joe

The manual, TM11-242, gives the range bracket as 3 to 5 miles with the long antenna (10 foot 8 inches) and 'slightly less' with the short 33 inch type. The primary role was inter Battalion communications, Coy HQs to Bn HQ, for which the range was acceptable.

Good points about it were ease of use for Inf Bn signallers, who tended to have a high turnover of personnel and easy to change frequency if required. The biggest drawback was it could only talk to another SCR-300, and couldn't net in with the SCR-610s, etc, and SCR-528/510/509, etc of Fd Arty and Armd units respectively. The ANVRC-3 was a late development that put an SCR-300 in a tank to provide a link to infantry, which needed extra SCR-300s to be made available if that went down to Rifle Platoons, as the Inf Bn T/O provided for six SCR-300s.

The British Army post-war replacement for the WS18 set, the WS31, was based on the SCR-300, and a few were used by 6th Abn Div as I recall, in their 1945 operations.

Gary