Acoustic release transponder
Engineered for: Seabed, Structure
Deep water instrument mooring or structure installation; RT 6-3000 takes the hard work out of your deploying ocean sensors and heavy lifting. It features an impressive battery life of over 32 months and a depth rating of 3,000 m.
At a glance
Use it with your Sonardyne Ranger 2 USBL to deploy, track and command
Highly reliable release mechanism design; thousands in service globally
Working Load Limit 1,275 kg (4:1)
Depth rated to 3,000 m
External battery disconnect to maximise battery life; no need to open unit
Deploy, track, moor and recover your equipment
Want to know more?
Benefits of RT 6-3000 for your operations
If you've got access to a Ranger 2 USBL system on your survey or research vessel then you have everything you need to control your RT 6-3000.
RT 6-3000 is more than just an acoustic release. It can be tracked with our Ranger 2 USBL making relocating and recovering it fast and simple.
Use it with our Heavy-Duty Release Frames and significantly increase your Working Load Limit when deploying seabed structures.
Acoustic release transponders are a vital pieces of ocean equipment; relied upon by energy, defence and science users to moor valuable equipment strings for years at a time, and when commanded to do so, reliably return equipment and logged data to the surface.
Transponders need to be tough, reliable and easy to work with. RT 6-3000 meets these requirements.
Part of our new range of acoustic releases, RT 6-3000 combines the extensive mechanical design track record of our renowned ORTs and DORTs with the flexibility of our 6G platform, resulting in enhanced battery life and perhaps most significantly, compatibility with our Ranger 2 USBL family.
With RT 6-3000 you can for the first time use your vessel’s Ranger 2 USBL to deploy, track, locate and command the instrument – removing the need for a separate topside unit.
For users without access to a Ranger 2 USBL, a portable dunker unit is available to command RT 6-3000s.
RT 6-3000s are most commonly used to anchor oceanographic moorings to the seabed. However, their compact size and compatibility with Ranger 2 makes them ideal for incorporation into instrument frames or lowered platforms to enable deployment of sub-system packages.
Depth rated to 3,000 m, the maximum slant range for operation is dependent on the noise environment and topside used, but ranges to 4,500 m should normally be achievable.
Standard features include a Working Load Limit of 1,275 kg (at 4:1) and a spring-assisted release mechanism. RT 6-3000 is compatible with our standard tandem and high-load release frames for scenarios requiring a higher WLL. Speak to us about your requirements as custom frames are also an option.
On the back deck prior to deployment, RT 6-3000 is configured with our iWand hand-held acoustic transponder test and configuration device.
A battery disconnect fob is located on the transducer and uses an internal magnetic switch to electronically disconnect the battery when not in use. This means you do not have to open the unit to manually disconnect the battery, saving time and reducing the risk of incorrect re-assembly.
RT 6-3000s use the same trusted spring-assisted release mechanism that has been in service for many years and used on thousands of Sonardyne transponders globally.
Medium Frequency (19-34kHz) band, Wideband 2
Omni-directional transducer. Track it all the way to the surface
Sonardyne Wideband 2 signal architecture supporting over 300 unique addresses
Compatible with Ranger 2 USBL systems
700 x 142 mm, 15 kg weight in water
Aluminium bronze, duplex stainless steel construction. ROHS compliant
Configured with iWand hand-held acoustic transponder test and configuration device
Compatible with our standard tandem and high-load release frame
3,000 m depth rated
4,500 m working range
>32 months battery life; alkaline battery
1,275 kg Working Load Limit
Secure and robust two-way acoustic Communications. Only release what you want to release
What’s in the box: RT 6-3000, shackles, manual on USB
Warranty: 1 year return to Sonardyne service centre
ITAR Controlled: No
UK Export License: Not required
RT 6-3000 case studies
Deep water structure installation – made easy
Our Gyro Compatt 6 is a great way to simplify structure installation operations in all water depths. Using our Gyro Compatt 6 helped offshore contractor China Offshore Fugro Geosolutions (COFG) performed smooth structure installations during the latest phase of the deep water Liuhua field in the South China Sea.
Deploy, retrieve, repeat – made easy with RT 6 acoustic release
Shallow water isn’t any less demanding than deep water. DynamOcean operates in tidal estrays with fast-flowing water and ever-changing environmental settings. Using our acoustic releases and underwater positioning technology they were able to reliably deploy and retrieve their ADCP sensors.
|Depth Rating||3,000 m|
|Maximum Slant Range||4,500 m|
|Operating Frequency||MF (19–34 kHz)|
|Transducer Beam Shape||Hemispherical|
|Transmit Source Level (dB re 1 µPa @ 1 m)||186 dB|
|Tone Equivalent Energy (TEE)||192 dB|
|Receive Threshold (dB re 1 µPa)||<90 dB|
|Working Load Limit (4:1)||1,275 kg|
|Proof Load||2,550 kg|
|Breaking Load||5,100 kg|
|Maximum Safe Release Load||1,700 kg|
|Battery Life (Alkaline)||>32 months active|
|Surface Unit||Sonardyne 6G transceiver|
|Mechanical Construction||Aluminium bronze and duplex stainless steel|
|Operating Temperature||-5 to 40°C|
|Storage Temperature||-20 to 55°C|
|Dimensions (Length x Diameter)||700 x 142 mm (27.5 x 5.6”)|
|Weight in Air/Water||20/15 kg|
|Options||Parallel Release Kit|
|Heavy Duty Release Frame|
|Standards||CE Marked to EN-60945, EN-61010|
|Note: RT 6-3000 is pressure rated to 4,000 m; however, due to operating range constraints of MF, its use at depths greater than 3,000 m is not recommended|