Development
The P-30 was developed by the All-Union Scientific Research Institute of Radio Engineering (VNIIRT) as an early warning ground control and interception radar for the Soviet Air Defence Forces, airforce, and navy of the Soviet Union. Saturn was a development of an earlier radar design, the P-30 radar with which it shares many similarities. By 1958 the radar had completed state trials and was accepted into service, offering improved detection range and reliability than the previous P-30.
In 1961 an improved variant of the P-35 was developed, the P-35M, which featured an improved antenna layout. By 1971 a new variant of the P-35 had entered service, "sword-35". The sword-35 upgrade featured faster scanning and an improved antenna layout and polarization filters to help eliminate passive interference and improve detection of targets flying below 300 meters. Sword-35 also incorporated a limited capability to modulate pulse duration and frequency to counter active jamming. The P-35 has now been succeeded by its successor, the P-37 radar.
Read more about this topic: P-35 Radar
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