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AN/SPN-22

Description of the radar set, tactical-technical characteristics
Specifications
frequency: 9 320 … 9 430 MHz
(X-band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 1.1; 1.5; 2.0 kHz
pulsewidth (τ): 0.2 µs
receiving time:
dead time:
peak power: 7 kW
average power:
instrumented range: 32 NM (≙ 60 km)
range resolution:
accuracy:
beamwidth: 1.9°
hits per scan:
antenna rotation: 20 rpm
MTBCF:
MTTR:

AN/SPN-22

The AN/SPN-22 was a navigation radar operating in X-band suitable also for smaller ships and boats.

The antenna offered an antenna gain of 28 dBi and consisted of a single-curved, cylindrical parabolic reflector with dimensions of about 1 foot high by 4⅙ feet wide, which was fed by a waveguide slot antenna. The vertical half-width is reported to be 20°. The largest side lobe had an attenuation of -25 dB.