| Became Operational | August 1938 |
|---|---|
| War Status | Replaced Type 284 in a few destroyers |
| Purpose | Air Warning |
| Wavelength | 7 meters |
| Power Output | 70 KW |
| Range | 60 |
First British ship-based radar system. Fitted to HMS Sheffield.
| Became Operational | First fitted to corvette HMS Orchis in May 1941. |
|---|---|
| War Status | Used operationally in war on small ships |
| Purpose | Surface Warning |
| Wavelength | 10 cm |
| Power Output | 5 - 90 KW |
| Range | 10 - 25 |
First microwave radar set. Very successful and fitted to hundreds of ships.
| Became Operational | 1941 |
|---|---|
| War Status | Used operationally in war on destroyers and cruisers |
| Purpose | Surface Warning |
| Wavelength | 10 cm |
| Power Output | 5 - 90 KW |
| Range | 10 - 25 |
| Became Operational | 1941 |
|---|---|
| War Status | Used operationally in war on cruisers and battleships |
| Purpose | Surface Warning |
| Wavelength | 10 cm |
| Power Output | 5 - 90 KW |
| Range | 10 - 25 |
| Became Operational | 1944 |
|---|---|
| War Status | Replaced Type 284 |
| Purpose | Main Gunnery Director |
| Wavelength | 10 cm |
| Power Output | 400 KW |
| Range | 16 |
| Became Operational | 1945 |
|---|---|
| War Status | Replaced Type 285 |
| Purpose | AA Fire Control (DP role for Destroyers) |
| Wavelength | 10 cm |
| Power Output | 400 KW |
| Range | 16 |
| Became Operational | 1944 |
|---|---|
| War Status | Replaced Type 284 in a few destroyers |
| Purpose | Main Gunnery Director |
| Wavelength | 10 cm |
| Power Output | 500 KW |
| Range | N/A |
| Became Operational | Late 1943 |
|---|---|
| War Status | The First shipboard set with PPI height-finder. Not a very good performer |
| Purpose | Combined Air and Surface Warning |
| Wavelength | 10 cm |
| Power Output | 500 KW |
| Range | 25 - 35 |
| Became Operational | 1940 |
|---|---|
| War Status | Used on large ships. |
| Purpose | Type 79 with gunnery ranging |
| Wavelength | 7.5 meters |
| Power Output | 70 KW |
| Range | 100 |
| Became Operational | 1940 |
|---|---|
| War Status | Based upon Army GL Mark I set. |
| Purpose | Air-warning / AA control |
| Wavelength | 3.5 meters |
| Power Output | 25 KW |
| Range | N/A |
Used for a short time in 1940 - 1941 on old AA cruisers.
| Became Operational | December 1940 |
|---|---|
| War Status | Most widely used set in WWII |
| Purpose | Air-warning |
| Wavelength | 3.5 meters |
| Power Output | 350 KW |
| Range | 120 |
First used on light cruiser HMS Dido.
| Became Operational | 1941 |
|---|---|
| War Status | Operational |
| Purpose | Close range AA control |
| Wavelength | 50 cm |
| Power Output | 25 KW |
| Range | 3.5 |
First used on HMS Prince of Wales.
| Became Operational | Late 1942 |
|---|---|
| War Status | Operational |
| Purpose | Blind AA Barrage fire for main armament of large ships |
| Wavelength | 50 cm |
| Power Output | 25 KW |
| Range | 8.5 |
Fitted in almost all cruisers and large ships.
| Became Operational | June 1940 |
|---|---|
| War Status | Operational |
| Purpose | Main gunnery for large ships |
| Wavelength | 50 cm |
| Power Output | 25 KW |
| Range | 10 |
First fitted to HMS Nelson. Very successful.
| Became Operational | Late 1942 |
|---|---|
| War Status | Operational |
| Purpose | Long range AA gunnery |
| Wavelength | 50 cm |
| Power Output | 25 KW |
| Range | 8.5 |
Variant of Type 284 adapted for small ships.
| Became Operational | 1941 |
|---|---|
| War Status | Operational |
| Purpose | Air and surface search |
| Wavelength | 140 cm |
| Power Output | Type 286: 100 KW Type 286M: 10 kW |
| Range | 20 |