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AQS903 PDS2 Circuit Board

Technical Information

Catalogue No: C0945
Category: Surveillance/Acoustics
Object Type: Module/Sub-Assembly/Component
Object Name: AQS903 PDS2 Circuit Board
Part No: 6743-01143
Serial No: 00152
Manufacturer: Unknown
Division: Unknown
Platform(s): Merlin AW101 (EH101) 
Year of Manufacture: Unknown
Width (mm):
Height (mm):
Depth (mm):
Weight (g):
Location: Main Object Store

Pt. No. 6743-01143
DL. Iss. 2
Ser. No. 00152
Mod Record 1
Caution PH0034


It had become clear that only a redesigned acoustics system would enable the Sea King replacement (now called WG34) to meet the Royal Navy's full operational requirements.

The main problem was to pack all of the sophisticated processing into a small and lightweight enough package for this new helicopter. The resultant system was the AQS-903 a powerful lightweight acoustic processor for helicopter and fixed-wing applications. This system can process data from eight to 32 sonobuoys in any combination. This flexibility is derived from the design based around a number of processing 'pipelines', each able to handle a certain quantity of passive and/or active sonobuoys. Four of these pipelines provide a processing power eight times that of the earlier generation AQS-901, at a fraction of the size and weight.

AQS-903/903A series make extensive use of distributed processing, with the systems incorporating the latest component technology to provide the operator with a wealth of information. The system provides a wide range of processing options to enable the operator to smoothly progress from initial contact detection to classification, localisation and tracking to achieve an effective mission. Analysis and display cues are in plain language, requiring a minimum of operator training. The system can process data from LOFAR, DIFAR, HIDAR, Barra, DICASS and CAMBS buoys.

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