Berlin can refer to several German 9 cm wavelength microwave radars of World War II. These were developed after the capture of examples of the British cavity magnetron in the H2S radar.

• FuG 224 Berlin A of 1944, a PPI ground mapping radar
• FuG 240 Berlin N1 of 1945, an airborne interception radar for nightfighters
• FuMO 81, a naval development of the FuG 224
• FuMO 83 Berlin I, for U-boats
• FuMO 84 Berlin II, for the type XXI U-boat

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