A list of Japanese radars used during World War II. Army radar Radar used by the Imperial Japanese Army. Ground-based radar Ta-Chi 1 Ground-Based Target Tracking Radar Model 1 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers Ta-Chi 2 Ground-Based Target Tracking Radar Model 2 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers Ta-Chi 3 Ground-Based Target Tracking Radar Model 3 - (Based on British GL sets captured in Singapore) - 3.75 m (80 MHz) pw = 1 or 2 us, Power = 50 kW, PRF = 1 or 2 kHz (range 40 km), 150 built by Sumitomo Entered service early 1944. Yagi Antenna Ta-Chi 4 Ground-Based Target Tracking Radar Model 4 - SCR-268 1.5 meter band (200 MHz) derivative built in small numbers Type A Bi-static Doppler Interface Detector (High Frequency Warning Device "Ko") Ta-Chi 6 TypeB Fixed Early Warning Device (Fixed Early Warning Device "Otsu") 1943 - 3 meter band (100 MHz) - 60 built Ta-Chi 7 TypeB Mobile Early Warning Device (Mobile Early Warning Device "Otsu") Transportable version of the Ta-Chi 6 Ta-Chi 13 Aircraft Guidance System Ta-Chi 18 TypeB Portable Early Warning Device (Portable Early Warning Device "Otsu") - 3 meter band (100 MHz) - 400 built Ta-Chi 20 Fixed Early Warning Device Receiver (for Ta-Chi 6) Ta-Chi 24 Mobil Anti-Aircraft Radar (Japanese-built Würzburg radar) Ta-Chi 28 Aircraft Guidance Device Ta-Chi 31 Ground-Based Target Tracking Radar Model 4 Modify Ta-Chi 35 Height finding radar Airborne radar Ta-Ki 1 Model 1 Airborne Surveillance Radar Ta-Ki 1 Model 2 Airborne Surveillance Radar Ta-Ki 1 Model 3 Airborne Surveillance Radar Ta-Ki 11 ECM Device Ta-Ki 15 Aircraft Guidance Device Receiver (for Ta-Chi 13) Shipborne radar Ta-Se 1 Anti-Surface Radar Ta-Se 2 Anti-Surface Radar Medium bomber, with control air-to-air missile device Mitsubishi Ki-67 Hiryu "Peggy" I KAI Go-IA: This experimental modification was for managed air-to-air guided missile evaluations, during 1944–1945. Guided missiles Kawasaki Ki-147 I-Go Type1 – Ko Air-to-Surface Radio Guidance Missile Mitsubishi Ki-148 I-Go Type1-Otsu Air to Surface Radio Guidance Missile I-Go Type 1-Hei "Ke-Go" IR Guidance Air to Surface Missile Navy radar Radar used by the Imperial Japanese Navy Land-based radar Airborne radar Type 5 Model 1 Radio Location Night Vision Device Shipborne radar Type 2 Mark 2 Model 1 Air Search Radar ("21-Go" Air Search Radar) Type 2 Mark 2 Model 2 Modify 3 Anti-Surface, Fire-assisting Radar for Submarine