Description of the radar set, tactical-technical characteristics
Figure 1: AN/FPN-33
|frequency:||9 000 … 9 160 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||1 500 Hz|
|pulsewidth (τ):||0.5 µs|
|peak power:||50 kW|
|average power:||36 W|
|beamwidth:||β= 0.85°, ε= 2.5°|
|hits per scan:|
AN/FPN-33 was an X-Band ground controlled precise approach radar that utilizes two prime-fed parabolic reflector antennas (azimuth and elevation) with an antenna gain of 39 dB, and two modes of operation (surveillance and tracking/precision approach).
It is the predecessor of the AN/FPN-36 which was fitted with an MTI then. The technical data were nearly the same, except for the much higher pulse power (and the higher maximum range) of the successor.