The Radar Response-S4

2020-07-30

Description
The McMurdo S4 Search & Rescue Transponder (SART) is a 9GHz receiver / transmitter. On receiving a pulse from any standard 9GHz x-band radar, the SART immediately transmits a signal which clearly identifies the survival craft on the radar screen by means of a series of 12 in-line dots. Once activated, the S4 SART will remain in standby mode for over 96 hours.

The S4 is fully approved and has been designed for assisting in air/sea rescue operations in accordance with IMO, GMDSS requirements. Designed to meet the toughest of marine environments, the S4 has been proven in use world-wide.

Features:

•Receiver Response 9.2 - 9.5 GHz, sensitivity better than -50dBm.
•Transmitter Response 12 forward and return sweeps through the range 9.2 to 9.5GHz. Nominal sweep times 7.5m s forward and 0.4ms return.
•Minimum Recovery time following excitation, less than 10ms.
•Response reply to receiver signal less than 0.5ms.
•Radiated Power (EPIRB) 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 -20dC to +55dC operational, -30dC to 65dC storage
•Antenna Characteristics Vertical beamwidth at least +/-12.5 degree relative to the horizontal plane of the radar transponder to +/-2dB.
•Azimuthal beamwidth omnidirectional to +/-2dB
•Effective Antenna Height 1 metre or greater.
•Weight 950g (without Bracket)
•Dimensions 300mm long x 62 mm diameter