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RJE International ATT-400 Series Acoustic Target Transponder

  • RJE International ATT-400 Series Acoustic Target Transponder
RJE International
15375 Barranca Parkway
92618 Irvine
United States of America


  • Year of latest version
  • Main applications
    The ATT-400 series transponders are small battery operated underwater acoustic devices which can operate as a transponder or a pinger. The ATT-400 marks and relocates targets underwater in ranges of up to 750 meters (2,461ft). A manual ON/OFF switch or water switch activates the transponder where it can remain in the receive mode for up to 18 months (based on model), waiting quietly for an interrogation signal from the DTI- 300, STI-350 or VADR Diver Transponder Interrogator.
  • Field of Use
    In addition, the ATT-400 can be programmed to operate as an acoustic pinger with eight user selectable frequencies from 27kHz to 34kHz. With a 2 watt output, the ATT-400 provides a range of up to 1,800 meters with a standard receiver like the PRS-275.
  • External Power supply [V]
  • Battery type
    9 Volt Battery, Alkaline
  • Battery life [hr]
  • Length [cm]
  • Diameter [cm]
  • Weight in air [kg]
  • Housing material
    Delrin or Aluminum Hard Anodized
  • Depth rating {m}
  • Transmit frequency min. [Hz]
  • Receive frequency [Hz]
  • Transmit Source Level (dB re 1 μPa @ 1 m)
  • Transmit frequency max. [Hz]
  • All transmit frequencies [Hz]
    27, 28, 29, 30, 31, 32, 33, 34

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