S 654
Description of the radar set, tactical-technical characteristics
Figure 1: S 654
| Specifications | |
|---|---|
| frequency: | 1 295 … 1 365 MHz
(L-Band) |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | 590 or 350 Hz |
| pulsewidth (τ): | 2.5 or 4 µs |
| receiving time: | |
| dead time: | |
| peak power: | 0.8 or 2.3 MW |
| average power: | |
| instrumented range: | 100 or 180 NM (≙ 185 or 333 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | 1.7° |
| hits per scan: | |
| antenna rotation: | 7.5 or 15 rpm |
| MTBCF: | |
| MTTR: | |
S 654
S 654 was operating in L-Band air surveillance radar usable for air traffic management. It could be used both as an en-route radar and, with reduced transmit power, as a terminal area radar.
The antenna used two antenna patterns staggered in elevation angle (high and low beam) for more effective fixed target suppression. The high-powered transmitter of type SR-1030 uses a water-cooled magnetron. Radar signal processing already provided a synthetic representation of the air situation on the displays.
The radar was built in the early 1960s.