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Wartime civilian receiver, 1944-1945. The Utility Radio or Wartime Civilian Receiver was a valve domestic radio receiver, manufactured in Great Britain during World War II starting in July 1944. It was designed by G.D. Reynolds of Murphy Radio. Both AC and battery-operated versions were made. [1] [2] [3]
The War Emergency Radio Service (WERS) was a civil defense service in the United States from 1942 to 1945. It was replaced by the current Radio Amateur Civil Emergency Service (RACES) system. History
Prior to the lifting of the wartime ban on civilian radio, a few government stations renewed experimental work with broadcasting technology, and in February 1919 the Bureau of Standards in Washington, D.C. gave a public demonstration, predicting that "Washington merrymakers will soon be able to dance to the music made by an orchestra on one of ...
The AARS organization continued to operate until the United States entry into World War II on 7 December 1941, at which time radio amateurs were denied the use of the airwaves, and the amateur service and the Army Amateur Radio System were deactivated. Following WWII, the US Army recognized the importance of reactivating the AARS to train ...
The AN/PRC-77 entered service in 1968 during the Vietnam War as an upgrade to the earlier AN/PRC-25.It differs from its predecessor mainly in that the PRC-77's final power amplifier stage is made with a transistor, eliminating the only vacuum tube in the PRC-25, as well as the DC-DC voltage converter used to create the high plate voltage for the tube from the 15 V battery.
During World War II, the Amateur Radio Service had been silenced and a new War Emergency Radio Service (WERS) had to be created from scratch in a process that took six months. The resulting standby RACES service was designed to provide a quicker and smoother transition in the event the President ever needed to silence the regular Amateur Radio ...
A brief history of war in the media. Recordings of war for the masses, says Thompson, go back to the Trojan War, when "the medium was epic poetry, written centuries later."Eventually artists would ...
CONELRAD (Control of Electromagnetic Radiation) was a method of emergency broadcasting to the public of the United States in the event of enemy attack during the Cold War.It was intended to allow continuous broadcast of civil defense information to the public using radio stations, while rapidly switching the transmitter stations to make the broadcasts unsuitable for Soviet bombers that might ...