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ATT-400 Series Acoustic Target Transponder

Product Name:ATT-400 Series Acoustic Target Transponder
Product Description:
Year of initial introduction :
Year of latest version:2015
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.
Hardware/software requirements 
RAM memory [GB]:
HD [GB]:
Processor (CPU):
Operating System:
Dedicated software:
Dedicated hardware:
Power Supply  
External power supply [V]:9
Battery type:9 Volt Battery, Alkaline
Battery life [hr]:1300000
Physical Properties  
Length [cm]:30
Diameter [cm]:6.4
Weight in air [kg]:0.63
Weight in water [kg]:
Housing material:Delrin or Aluminum Hard Anodized
Operating properties 
Depth rating {m}:6000
Transmit frequency min. [Hz]:27
Transmit frequency max. [Hz]:34
All transmit frequencies [Hz]:27, 28, 29, 30, 31, 32, 33, 34
Receive frequency [Hz]:26
Transmit Source Level (dB re 1 μPa @ 1 m):180
Receive Sensitivity (dB re 1μPa):
Transducer Beamshape:
Safe Working Load (4:1) [Kg]:
Additional specifications 
Release Mechanism:
Additional sensors:
Electrical trigger:

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Supplier Information
  • RJE International

  • 15375 Barranca Parkway
  • 92618 Irvine
  • California
  • United States of America



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