RL-4AS
Description of the radar set, tactical-technical characteristics
Figure 1: RL-4AS
| Specifications | |
|---|---|
| frequency: | 2.7 … 2.9 GHz
(S-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 600 Hz |
| pulsewidth (τ): | 2 µs |
| receiving time: | |
| dead time: | |
| peak power: | 2 × 800 kW |
| average power: | |
| instrumented range: | 110 NM (≙ 200 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | 2° |
| hits per scan: | |
| antenna rotation: | 6 or 12 rpm |
| MTBCF: | |
| MTTR: | |
RL-4AS
RL-4AS was operating in S-Band Terminal Area Radar (TAR) intended for military air traffic control near airport. The RL-4 radar is a product of the former Tesla company. Eldis upgraded it to RL-4AS in 1994-1998.
The parabolic reflector with dimensions of 5 × 3,5 m provided a cosecant squared pattern. The antenna used two horn radiators for high- and low-beam patterns to improve fixed-target rejection. It can be selected linear or circular polarization. A magnetron was used in the transmitter. A mobile version was installed on a TATRA-148 truck.