List of Japanese World War II radars explained

A list of Japanese radars used during World War II.

Army radar

Radar used by the Imperial Japanese Army.

Ground-based radar

Airborne radar

Shipborne radar

Medium bomber, with control air-to-air missile device

Guided missiles

Navy radar

Radar used by the Imperial Japanese Navy

Land-based radar

Designation Type Antenna Wave
length
Peak
output
Pulse
length
(μS)
PRF
(Hz)
Detection
range
single
aircraft
Detection
range
formation
Weight First
operational
Number
built
Type 2 Mark 1 Model 1 "11" Fixed early warning radar Two rows of three dipoles 3 m 5 kW 20 1,000 130 km 250 km 8,700 kg March 1942 30 total
(all marks)
Type 2 Mark 1 Model 1 Mod 1 "11-1" Fixed early warning radar Two rows of three dipoles 3 m 5 kW 20 1,000 130 km 250 km 8,700 kg May 1942
Type 2 Mark 1 Model 1 Mod 2 "11-2" Fixed early warning radar Two rows of three dipoles 3 m 20 kW 40 500 130 km 250 km 8,700 kg May 1943
Type 2 Mark 1 Model 1 Mod 3 "11-3" Fixed early warning radar Two rows of three dipoles 3 m 20 kW 40 500 130 km 250 km 8,700 kg July 1943
Type 2 Mark 1 Model 2 "12-Go" Ground based mobile Dipole array with a mat type reflector 1.5 m 5 kW 10 1,000 50 km 100 km 6,000 kg December 194250 total
(all marks)
Type 2 Mark 1 Model 2 Mod 2 "12-Go" Ground based mobile Dipole array with a mat type reflector 2 m 5 kW 10 1,000 50 km 100 km 6,000 kg December 1943
Type 2 Mark 1 Model 2 Mod 3 "12-Go" Ground based mobile Dipole array with a mat type reflector 2 m 5 kW 10 500 150 km effective
300 km max
6,000 kg January 1944
Type 3 Mark 1 Model 1 "11-Go" Shore based medium size radar Two arrays of 5 dipoles 2 m 10 kW 20 500 150 km effective
300 km max
October 1943 unknown
Type 3 Mark 1 Model 3 "13-Go" Multi-purpose portable early
warning radar. Adapted for
submarine use
Dipole array with mat type reflector 2 m 10 kW 10 500 50 km 100 km 110 kg August 1943 1,000
Type 3 Mark 1 Model 4 "14-Go" Ship-borne long-Range
air search
Four two element yagis 6 m 100 kW 20 250 250 km 360 km to
450 km
30,000 kg May 1945 2 to 5
Type 2 Mark 4 Model 1 S3 Anti-aircraft Fire-Control Radar
(Copy of SCR-268)
2 × 4 dipole array with mat type reflector 1.5 m 13 kW 3 2,000 20 km 40 km 5,000 kg August 1943 50
Type 2 Mark 4 Model 2 S24 Anti-aircraft Fire-Control Radar
(Copy of SCR-268)
4 Yagis 1.5 m 13 kW 3 1,000 20 km 40 km 5,000 kg October 1944 60
Sources:[2] [3] [4]

Airborne radar

Designation Type Antenna Wave
length
Peak
output
Pulse
length
(μS)
PRF
(hz)
Detection
range
single
aircraft
Detection
range
formation
Weight First
operational
Number
built
Type 3 Mark 6 Model 4 (Type H6) Airborne radar Yagi type 2 m 3 kW 10 70 km 100 km 110 kg August 1942 2,000
Type FM-1 Air and surface search radar Yagi Type 2 m 42 kW 70 km 100 km 70 kg September 1944 Experimental only
Type N6 Air and surface search radar Yagi type 1.2 m 2 kW 50 km 70 km 60 kg October 1944 20
Type FM-3 Air and surface search radar Yagi type 2 m 2 kW 50 km 70 km 60 kg June 1945 100
FD-2 Air and surface search radar Yagi type 0.25 m 2 kW <10 km 3 km 70 kg August 1944 [5] 100

Shipborne radar

Radar-equipped bomber devices for maritime reconnaissance/antisubmarine patrol

Navy air guided missiles

Notes and References

  1. Web site: Japanese Radar Technology at War. Greg Goebel.
  2. Web site: Japanese Radar Equipment in World War II. Martin Favorite. https://web.archive.org/web/20160413111435/http://www.combinedfleet.com/radar.htm. 13 April 2016. live.
  3. Book: Japanese Radar and Related Weapons. Yasuzo Nakagawa. Aegean Park Press. 0-89412-271-1. 1997.
  4. Book: Japanese Land-Based Radar. U.S. Naval Technical Mission to Japan. 1946.
  5. but not officially used during the war