Description of the radar set, tactical-technical characteristics
Figure 1: N-22
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||1 000 Hz|
|pulsewidth (τ):||10 µs|
|peak power:||90 kW|
|instrumented range:||100 km|
|accuracy:||100 m; 0.2°|
|hits per scan:|
|antenna rotation:||12 or 24 rpm|
The N-22 is an operating in S-Band self propelled short to midrange 2D- air surveillance radar for tactical use. It can also used as a gap filler up to an altitude of 7 000 m. The parabolic reflector of the antenna has the dimension of 4,2 × 3,1 m. It provides a cosecant squared pattern. The predesessor of the N-22 was the N-21, using the same antenna. The N-21 used as transmitter power amplifier an amplitron, that was driven by a travelling wave tube of the type LO-301M. The N-22 radar is used to provide target information to low-level air defence systems such as the Russian 9K33 Osa (NATO SA-8 “Gecko”) self-propelled surface-to-air missile system. Prime contractor for the N-22 is the RADWAR company of Poland (now PITRADWAR). The radar is mounted on a modified Tatra 815 8×8 chassis and has a fully enclosed armoured cab in the centre and an elevatable mast at the rear.
The N-21 was produced since the late 1980s and the N-22 was produced since the mid-1990s.