Reja
Reja ( Russian Рея , German: Rah ) is a Soviet panoramic and target tracking radar system , which was mainly used on small submarine hunt and patrol boats. The NATO code name is Pot Head .
Structure and use
The system's antenna is located in a flat radome about four feet in diameter. This form is the origin of the NATO code name. The main task of the system is the maritime surveillance and Torpedo - fire line . In addition, it has severely limited airspace surveillance capabilities.
The system was used from 1960 and replaced radar devices of the Sarniza (Skin Head) type . At the same time as the Reja, a very similar radar system, MR-102 Baklan (Pot Drum), was developed. This was more powerful and somewhat larger, but less suitable for underground hunting due to the longer broadcasting time. Both systems were replaced on newer boats (from 1978) by the radar Reid (Peel Cone).
The system was used in the following ship classes, among others:
- SO-1 class (project 201)
- MO-IV class (Project 199) (partially)
- Shark class
Licensed buildings
In China, these devices were built for a long time under the name Type 351 . In contrast to the original design, the radome was partially dispensed with. These were used in the following Chinese and North Korean ship classes, among others:
- Hainan class (type 037)
- Shanghai I / II class (type 062)
- Taechong I / II class
- Chong Ju class
- Sariwon class
- Najin class
Technical specifications
| Technical data Reja "Pot Head" | |
|---|---|
| Frequency range | X-band (9275-9460 MHz) |
| Pulse repetition time | |
| Pulse repetition frequency | 1.6-1.65 kHz / 3.2-3.3 kHz |
| Transmission time (PW) | 0.25 - 1 µs |
| Reception time | |
| Dead time | |
| Pulse power | 100 kW |
| Average performance | |
| displayed distance | 37 km |
| Distance resolution | |
| Opening angle | about 3 ° |
| Hit count | |
| Antenna round trip time | 10–12 or 15–24 sec |
literature
- Radar and Electronic Warfare Systems . Jane's Information Group, janes.com
- Norman Friedman: The Naval Institute guide to world naval weapons systems, 1997-1998 . Naval Institute Press, 1997, ISBN 1-55750-268-4