Sonardyne Lightweight Command Unit (LCU) with Dunking Transducer

ORTs and DORTs are controlled using a frequency band specific Lightweight Command Unit (LCU) which consists of an over-the-side dunking transducer connected either to a splash-proof handheld terminal or, via supplied software, to any PC.  The Type 7663 unit is a Medium Frequency LCU for commanding ORTs whilst the Type 7667 LCU is a Low Frequency unit suitable for use with DORTs.

For security of operation, a special coding system provides protection against accidental release by noise or acoustic transmissions from other equipment. Each ORT or DORT has its own unique ‘address’ enabling a number of units to be deployed in the same area without risk of interference.


  • Commands and controls ORT and DORT transponders
  • Choice of MF or LF operating band depending on acoustic release type
  • Controlled using splash-proof Psion handheld terminal or PC
  • Supplied with dunking transducer and 40 metre cable drum
  • Allows users to range to Compatt transponders and send basic commands



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