Fan Song E
Description of the radar set, tactical-technical characteristics
|frequency:||5,010 - 5,090 MHz and|
4,910 - 4,990 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||828 - 1,440 pps and|
1,656 - 2,880 pps
|pulsewidth (τ):||0,4 and 1,2 µs|
|peak power:||1.5 MW|
|instrumented range:||75 and 150 km|
|range resolution:||60 m and 180 m|
|beamwidth:||7.5° · 1.5°|
|hits per scan:|
Missile Control Radar “Fan Song E” (PW S-75 “Wolchow”)
Fan Song E is a missile control radar operating in frequency band G, associated with the SA-2E Guideline Mod 4. The main differences to the predecessor “Dwina” (Fan Song B) are the frequency of the radiation from the Lewis scanners and the fan beam (and hence the sector dimensions). The beams in Fan Song E are about 7.5° wide in the fan and 1.5° in the scanning direction.
The antenna system consists of two pairs of antennas with the tasks for target search and target tracking. In addition to the antenna for the command guidance signals, which is similar to that of Fan Song B, Fan Song E has two further parabolic dishes mounted on top of the horizontal Lewis scanner (one for each scanner). One of these is vertically and the other horizontally polarised.
Fan Song radars are in widespread use in many countries, associated with the SA-2 missile system. The SA-2 is being replaced by the SA-10 and it is expected to be out of service by the year 2000.