Emergency Relocation Transponder for Diving Bells

Emergency Relocation Transponder for Diving Bells

Transponder and Interrogator compatible with Sonardyne systems

Commercial diving companies operating in an area that requires their diving bell to meet offshore standard DNV-OS-E402, must have an emergency locating system that meets section 305 of that standard.

RJE International provides the ATT-400/AODC transponder – a small battery operated underwater acoustic device, which is used to mark commercial diving bells for emergency relocation to depths of 1000 meters. The interrogation frequency is factory set to 38.5kHz (Ch-A) or 39.5kHz (Ch-B) and, when interrogated, replies to the pre-set emergency frequency of 37.5kHz and meets the DVN-OS-E402 standard.

A diver held interrogator for the transponder, the DTI-300/AODC interrogator is also available. To ensure a smooth transition, the ATT-400/AODC transponder is compatible with the older Sonardyne systems and can be located with the Ranger2 USLB system and Homer-pro receivers presently in use and fielded.

AODC Transponder and Interrogator for Diving Bells.

Key Features

Up to 25-hour mission duration

Speeds up to 4.2 knots

Increased module payload capacity

Search and recovery

Hydrography

Deep sea mineral exploration

Marine & Fisheries research

AODC Transponder for Diving Bells

Download(255 KB)

AODC Diver Interrogator

Download(620 KB)

Product Enquiry

    Product Enquiry


    Related Articles

    Emergency Location When It Matters: RJE International’s ULB 362PL for ROV Operations Offshore

    When subsea assets disappear from view, certainty comes from sound—and few technologies are as critical to offshore energy operations as dependable acoustic location beacons.   As offshore energy operations continue...

    Read More

    Innovation on Display: Four Key Product Launches from Oceanology International 2026

    A clear glimpse into the future of subsea operations, with new platforms that promise more autonomy, greater precision, and faster results offshore. Oceanology International 2026 marked a significant moment for...

    Read More

    Driving Fuel Efficiency and Fleet Readiness with Greensea IQ EverClean

    Save 20% in fuel costs per year while maintaining hull condition close to the standard achieved immediately post dry-dock. In a global operating environment where fuel prices and supply chains...

    Read More