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S-264

Description of the radar set, tactical-technical characteristics

Figure 1: S-264

Figure 1: S-264

Specifications
S-264S-264A
frequency: 582 … 606 MHz
(UHF-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 500 … 800 Hz260 … 550 Hz
pulsewidth (τ): 2 or 4 µs3 or 4 µs
receive time:
dead time:
peak power: 50 kW500 kW
average power:
instrumented range: 110 NM
(≙ 200 km)
216 NM
(≙ 400 km)
range resolution:
accuracy:
beamwidth: 2.2°
hits per scan:
antenna rotation: 5 or 10 rpm
MTBCF:
MTTR:

S-264

S-264 was operating in UHF-Band fully coherent terminal area and en-route surveillance radar. It is a further development of the Marconi S-234.

Type S-264A is essentially the same equipment as Type S-264, but incorporates a multi-cavity, high power klystron based power amplifier wich increased the peak power from 50 kW to approximately 500 kW. Both versions use a staggered pulse repetition frequency. The radar provides a highly efficient and stable MTI due to crystal control througout. The antenna uses a cylindrical parabolic reflector with off-set slotted linear waveguide radiator. The elevation beam was created by the help of the reflection from the ground.

The S-264 entered the service in the airport of London Heathrow in 1954. S-264 was delivered in several foreigen states. Some radar sets remained in service until 1990.

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