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Type 909

Description of the radar set, tactical-technical characteristics

Figure 1: Type 909

Figure 1: Type 909

Specifications
frequency: C-Band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receive time:
dead time:
peak power:
average power:
instrumented range: 40 NM (≙ 74 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

Type 909

Type 909 served as operating in C-Band target-tracking, illuminating and missile-guidance radar for the Sea Dart GWS 30 missile system and was installed in pairs in Type 42 and 82 destroyers. It has ECCM which are incorporated to counter both active and passive ECM.

The antenna is of the Cassegrain type and has a diameter of 2.44 m. The small radome mounted near the top of the main reflector houses an associated IFF antenna. On board ship, the complete antenna assembly was protected by a radome.

Picture gallery of Type 909

Figure 2: Type 909 under a radome
(© 2015 Jörg Waterstraat, www.kriegsschiffe.eu