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 Pains Wessex
McMurdo S4 RESCUE
Search And
Rescue Transponder
(SART)
 S4 SART 86-300-01
The Pains Wessex / McMurdo S4 RESCUE Search And Rescue Transponder (SART) is a 9 GHz X-band radar transceiver and has been designed for assisting in air / sea ship or survival craft rescue operations in accordance with IMO, GMDSS requirements.
USCG & FCC approved
Approved to IEC 1097-1
Ship or survival craft applications
5 year long life user replaceable battery pack
Waterproof to 33' feet (10 metres)
Buoyant
Compact & lightweight
Maintenance free
Audio/visual alarm
Built-in test facility
Integral lanyard
Mounting options - internal/external
When a radar signal is received from a ship or survival craft, the S4 RESCUE automatically transmits a response signal, which clearly identifies the survival craft on the radar screen by means of 12 in-line dots. Once activated, the S4 RESCUE will remain in standby mode for over 96 hours.
Technical specification:
Receiver Response: 9.2 to 9.5 GHz, sensitivity better than -50dBm.
Transmitter Response: 12 forward and return sweeps through the range 9.2 to 9.5 GHz.
Nominal sweep times: 7.5us forward and 0.4us return. Minimum Recovery time following excitation: less than 10us. Response reply to receiver signal: less than 0.5ms.
Radiated Power: Not less than 400mW (+26dBm)
Duration of Operation: 96 hours in standby condition followed by a minimum 8 hours of transmission while being continuously interrogated with a pulse-repetition frequency of 1kHz.
Temperature Range: -20°C to +55°C operational
-30°C to 65°C storage
Antenna Characteristics:
Vertical beam-width: at least +/-12.5 degree relative to the horizontal plane of the radar transponder to +/-2dB. Azimuthal beam-width :omnidirectional to +/-2dB
Effective Antenna Height: 1 metre or greater.
Weight: 360g (without Mast or Bracket)
Dimensions: 264mm long x 90mm diameter
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