In mid-1943, the greatly improved Although Telefunken had not been previously involved with radars of any type for fighter aircraft, in 1944 they started the conversion of a In the years prior to World War II, Japan had knowledgeable researchers in the technologies necessary for radar; they were especially advanced in magnetron development. For these, they developed Tase-1 and Tase-2, both anti-surface radars. Fundamentally, it was the 200-MHz version of the Type 12 redesigned for shipboard use and weighing only about 840 kg. 1. The first successful airborne microwave radar. Of these, 12 types were turned over to the REL where they were built in quantities varying from a few to hundreds; altogether, some 3,000 were produced before the REL was closed in September 1946.In late 1939, the New Zealand Department of Scientific and Industrial Research (DSIR) established two facilities for RDF development – one, led by Charles Watson and George Munro (Watson-Munro) was at the Radio Section of the Central NZ Post Office in The objective of the Wellington group was to develop land-based and airborne RDF sets for detecting incoming vessels and a set to assist in gun-directing at coastal batteries. Several hundred of these "portable" sets were built, and a number were found as the Japanese vacated distant occupied territory. In April 1937, tests achieved a detection range of nearly 17 km at a height of 1.5 km.
Used a single transmit/receive antenna, Follow on from Type 79, metric air warning set. NEC built some 150 of these sets, and they finally entered service in early 1944. Designated FD-2 (sometimes FD-3), this was a magnetron-based, 25-cm (1.2-GHz), 2-kW set weighing about 70 kg. Designated By mid-1942, British radars were available to meet all new South African needs. of Physics Publishing, 2000Muller, G. and H. Bosse; "German primary radar for airborne and ground-based surveillance", in Kummritz, H.; "German radar development to 1945", in Bauer, Arthur O.; "Some Aspects of German Airborne Radar Technology, 1942 to 1945", Nakajima, S.; "The history of Japanese radar development to 1945", pp. The Type 32 was another 10-cm system, this one having separate square-horn antennas. This was due to the vertical sides of the objects, which formed excellent partial The Air-Surface Vessel Mark I, using electronics similar to those of the AI sets, was the first aircraft-carried radar to enter service, in early 1940. As the Rad Lab began operations at MIT, a companion group, called the One other metric radar was developed by the SCL. This led to the development of a 3-cm device by the NEC and a full 3-cm (10-GHz) radar for small crafts. Had separate Tx and Rx antennas, combined in Type 279M to single antenna operation. During World War II, the US Navy deployed two major radar series: search sets (BuShips) and fire control systems (BuOrd). The Imperial Army also had its own Air Divisions with fighters, bombers, transports, and reconnaissance aircraft. The requirements were given to Runge at Telefunken, and by the summer a prototype system was tested. WW2 Combined air/surface in small ships: Full Seaslug records and Birth of the 901 system and The Type 901 Guidance Radar: Type 42's etc: Centimetric spotting set for use with 274: Fitted into a large number of WW2 invasion craft. This was a smaller staff and the work went much slower, but by July 1940, they had developed an experimental VHF fire-control set and tested it on the Armed Merchant Cruiser The same basic equipment was used by the Christchurch group in developing a ship-based air- and surface-warning system. Many sets of a number of different versions of the From the time of the first efforts in radio-location, the question had been raised as to how the aircraft identification could be made – was it friendly or an enemy?
This went into service in early 1943; about 350 Tachi-6 systems were eventually built. Colonel in the Butement, W. A. S., and P. E. Pollard; "Coastal Defense Apparatus", recorded in the Tomlin, D. F.; "The origins and development of UK army radar to 1946", in Coales, J. F., and J. D. S. Rawlinson; "The Development of Naval Radar 1935–1945", Zahl, Lt. Col. Harold A., and Major John W. Marchetti; "Radar on 50 centimeters", Colton, Roger B.; "Radar in the United States Army", Erickson, John; "Radiolocation and the air defense problem: The design and development of Soviet Radar 1934–40", Ioffe, A. F.; "Contemporary problems of the development of the technology of air defense", Siddiqi, Asif A.; "Rockets Red Glare: "Technology, Conflict, and Terror in the Soviet Union"; Kostenko, Alexei A., Alexander I. Nosich, and Irina A. Tishchenko; "Development of the First Soviet Three-Coordinate L-Band Pulsed Radar in Kharkov Before WWII" Kroge, Harry von; GEMA: Birthplace of German Radar and Sonar, translated by Louis Brown, Inst.