The SCR-694 was a portable two way radio set used by the U.S. military during World War II.
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The SCR-694 was a portable two way radio set used by the U.S. military during World War II.
The SCR-694 began to replace the SCR-284 from mid 1944, [1] with improved range and reduced weight (around half of its predecessor), though the latter continued to be used up until the end of the war. Designed to provide communication between moving or stationary vehicles or as a portable field radio set, the SCR-694 was originally intended for use by mountain troops and airborne forces but soon became the Army-wide standard at battalion level.
The SCR-694 saw use all over the army in many different theaters; notable instances include at regimental division headquarters during the Normandy invasion [2] and the Cabanatuan prison raid [3] as well as by scouts and reconnaissance units in the Pacific War. [4]
It was later replaced by the AN/GRC-9, which saw first documented use in the Korean war.
The SCR-694 "Radio set, Portable/Vehicular" consisted of the BC-1306 vacuum tube transmitter/receiver capable of AM and CW mode operation between 3.800 and 6.500 MHz.
The SCR-270 was one of the first operational early-warning radars. It was the U.S. Army's primary long-distance radar throughout World War II and was deployed around the world. It is also known as the Pearl Harbor Radar, since it was an SCR-270 set that detected the incoming raid about 45 minutes before the 7 December 1941, attack on Pearl Harbor commenced.
The M8 light armored car is a 6×6 armored car produced by the Ford Motor Company during World War II. It was used from 1943 by United States and British forces in Europe and the Pacific until the end of the war. The vehicle was widely exported and as of 2024 still remained in service with some countries.
The AN/ARC-5 Command Radio Set is a series of radio receivers, transmitters, and accessories carried aboard U.S. Navy aircraft during World War II and for some years afterward. It is described as "a complete multi-channel radio transmitting and receiving set providing communication and navigation facilities for aircraft. The LF-MF-HF components are designed to transmit and receive voice, tone-modulated, and continuous wave (cw) signals." Its flexible design provided AM radiotelephone voice communication and Modulated continuous wave (MCW) and Continuous wave (CW) Morse code modes, all of which are typical capabilities in other Navy aircraft communication sets of the period. It was an improvement of the Navy's ARA/ATA command set. Similar units designated SCR-274-N were used in U.S. Army aircraft. The Army set is based on the ARA/ATA, not the later AN/ARC-5. The ARA/ATA and SCR-274-N series are informally referred to as "ARC-5", despite small differences that render all three series incompatible. Like the AN/ARC-5, the ARA/ATA and SCR-274-N had AM voice communication and two-way MCW and CW Morse code capability.
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Signal Corps Radios were U.S. Army military communications components that comprised "sets". Under the Army Nomenclature System, the abbreviation SCR initially designated "Set, Complete Radio", but was later misinterpreted as "Signal Corps Radio."
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The BC-610 was a radio transmitter based on the Hallicrafters HT-4 and was used by the U.S. Army Signal Corps during World War II.
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The AN/MRN-1 was an instrument approach localizer used by the Army Air Force during and after World War II. It was standardized on 3 July 1942. It replaced the SCR-241, and was a component of SCS-51.
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The SCR-245 Radio was a mobile MF/HF Signal Corps Radio used by the U.S. Army before and during World War II, for short range ground communications, It was one of the first crystal controlled sets used by the Army.
The SCR-508 radio was a mobile Signal Corps Radio used by the U.S. Army during World War II, for short range ground communications. The SCR-508 series radio represented the Army's commitment to both FM and crystal tuning, and was used extensively by armor and mechanized units. The turret bustle of late series light and medium tanks was designed around this radio.
The SCR-193 was a series of Signal Corps Radio sets used by the U.S. armed forces in World War II.
The K-30 truck, a US Signal Corps designation for an Autocar U8144 truck with York-Hoover van body, was used as the Operating Truck for the SCR-270, an early-warning radar of World War II. 2) 3) 4) Similar vehicles were the K-31 power truck for the SCR-270 early warning radar and K-62 or K-62-A, both operating trucks also for the SCR-270. K-30 and the similar K-62(-A) differed in cubic feet and overall height from the K-31. On the accompanying image in the infobox can be seen, that the K-30 beside in cubic feet and overall height differed from the K-31 in having a window on the right side of the van body. The panels at the back and at both sides were formed by two halves, that were folded up and down respectively. This truck contains a high-power radio transmitter, a cooling system for the transmitter tubes, two cathode-ray oscilloscopes, two superheterodyne receivers, a vacuum-tube keyer, a plotting table, and containers for spare parts and tubes.
During World War II, the German Army relied on an diverse array of communications to maintain contact with its mobile forces and in particular with its armoured forces. Most of this equipment received the generic prefix FuG for Funkgerät, meaning "radio device". Occasionally the shorted Fu designation were used and there were exceptions to both these systems. Number ranges were not unique across the services so sometimes different equipment used by different services had the same FuG prefix. This article is a list and a description of the radio equipment.