 A Type 293 AUR antenna at the upper center aboard HMS Swiftsure at Scapa Flow | |
| Country of origin | United Kingdom |
|---|---|
| Introduced | 1945 |
| Type | Aerial-search radar |
| Frequency | 2,997 MHz |
| Beamwidth | 3.2° |
| Range | 20 nmi (37 km; 23 mi) |
| Altitude | 20,000 ft (6,100 m) |
| Power | 500 kW |
The Type 293 radar was designed as a short-range aerial-search radar for surface ships in 1945. It used the same transmitter as the Type 277 surface-search radar, but used a new antenna design intended to cover the area above the ship to provide air warning instead of surface search. The stabilised "cheese" antenna, 6 feet (1.8 m) diameter in the AUR antenna, was upgraded to 8 feet (2.4 m) in Type 293P and to 12 feet (3.7 m) in the postwar Type 293Q.[1]