Hunting lodge (radar)

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Hunting lodge under construction, 1945

FuMG404 Jagdschloss was a German panoramic or "panorama" radar device for air situation centers of the Luftwaffe towards the end of the Second World War.

history

Developed by GEMA from 1937 onwards, it was manufactured by Siemens & Halske from 1943 onwards. A total of 62 were built. The designer and developer was Theodor Schultes (1901–1981).

  • The radar devices FuMG 404 "Jagdschloss" and "Jagdhaus" were used to record all aerial targets (friend and foe) in the recorded airspace. By switching from location to identification, foreign targets and interference from chaffs could be hidden.
  • The variant FuMG 405 "Jagdhütte" only had the interrogator and identification receiver for the " Erstling " identification devices . "Jagdhütte" was used to guide their own fighter planes. See also: Egon (radar)

The system was designed in such a way that the generated data was within the (telephone) audible range . The information could therefore over the telephone network or decimeter - radio stretch ( code name : "Michael" device) to the Air Situation Center or the anti-aircraft battery is transmitted. There they could be displayed on “star writers” (today radar screen). A height evaluation was not possible; this also required a Würzburg radar. The transmitting antenna consisted of 16 unit dipole fields with a total width of 24 meters. Above this was the antenna for the "Gemse" identification receiver, which evaluated the signal sent by the "Erstling" identification device ( FuG 25a ).

Technical specifications

  • Detection range 80–200 km, depending on the flight altitude
  • Antenna type: 128-element group antenna in front of the reflector wall
  • Antenna speed: 10 revolutions per minute
  • Opening angle horizontally: 7 °
  • Opening angle vertical: 60 °
  • Operating frequency: 158-240 MHz
  • Impulse power: 150 kW
  • Pulse duration: 2 μs
  • Pulse rate: 494, 497, 500, 503, 506 Hz switchable
  • Resolution: 300 m
  • Antenna rotor: 75 kW
  • Weight: 25–30 t
  • Size:
Antenna width: 24 m
Antenna height: 5 m
Total height: 12 m

gallery

  • Detailed technical manual (115 pages)

See also

literature

  • Fritz Trenkle : The German radio control procedures until 1945 , Dr. Alfred Hüthig Verlag Heidelberg, 1987, ISBN 3-7785-1647-7
  • Werner Müller: Ground radio measuring devices of the German Air Force until 1945 , Waffen-Arsenal Volume 132, Podzun-Pallas-Verlag, Friedberg 1992, ISBN 3-7909-0422-8

Web links