WMT 6
Overview
Ultimate precision for underwater tracking
WMT is used with Ranger 2 USBL for tracking and communication tasks. It’s most commonly used with ROVs, AUVs and towfish applications where its high acoustic output power level means it’s perfect for long-range operation up to 7,000 m. It’s also suitable for AUVs, ROVs and towfish applications.
Overview
WMT is a 6G compatible, high acoustic output power USBL transponder available in two depth versions: 3,000 m and 7,000 m. The 7,000 m version has a higher acoustic output power level for improved long-range operation.
For ROV and towfish tracking, WMT supports responder trigger for faster position updates, an integrated rechargeable Li-Ion battery pack that is charged from the ROV’s power supply and full RS232 communications enabling channel set up, power and gain etc. to be changed from the surface.
At a glance
- Use it with Ranger 2 for deep water, long layback tracking tasks
- High power acoustic output and directional transducer
- Responder mode for fast position updates
- Full two-way Sonardyne Wideband 2 interrogation and reply
- Li-Ion rechargeable battery pack
- Optional remote transducer
An on/off switch (3,000 m only) helps to ensure the battery pack is not discharged when not in use. If an umbilical trigger is not available, then the full Wideband transponder mode provides excellent USBL performance in a small, lightweight package.
Remote omni or directional transducers are available for WMT. These make installation on a ROV easier as the remote transducer can be installed where there is good line-of-sight and is easily replaced if damaged. The main body of the transponder can then be installed within the ROV frame where it is well protected from damage.
Specifications table
| Feature | Type 8190-3111 | Type 8190-3112 | Type 8190-7212 | |
|---|---|---|---|---|
| Depth Rating | 3,000 m | 3,000 m | 7,000 m | |
| Operating Frequency | MF (20–34 kHz) | MF (20–34 kHz) | MF (20–34 kHz) | |
| Transducer Beam Shape | Omni-directional | Directional | Directional | |
| Source Level (re 1 µPa @ 1 m) |
High Power | 187 dB | 193 dB | 199 dB |
| Low Power | 181 dB | 187 dB | 193 dB | |
| Tone Equivalent Energy (TEE)1 WBv2+ |
High Power | 193 dB | 199 dB | 205 dB |
| Low Power | 187 dB | 193 dB | 199 dB | |
| Range Precision | Better than 15 mm | Better than 15 mm | Better than 15 mm | |
| Depth Sensor | ± 0.5% full scale | ± 0.5% full scale | ± 0.5% full scale | |
| Communications Interface | RS232 (9,600–115,200 baud) | RS232 (9,600–115,200 baud) | RS232 (9,600–115,200 baud) | |
| External Supply Voltage | 24 or 48 V dc (± 10%) | 24 or 48 V dc (± 10%) | 24 or 48 V dc (± 10%) | |
| External Power | Sleep | ~650 mW | ~650 mW | ~650 mW |
| Wideband Listening | ~1 W | ~1 W | ~1 W | |
| Battery Charging | 6 W | 6 W | 6 W | |
| Peak (During Transmission) |
<50 W | <50 W | <50 W | |
| External Power Switch | Yes | Yes | No | |
| Battery Life (Li-ion 15 V) |
Listening | 30 days | 30 days | 30 days |
| Continuous 5 Seconds Interrogation |
Approx. 6 days at low power | Approx. 6 days at low power | Approx. 6 days at low power | |
| Mechanical Construction | Anodised aluminium alloy and plastics | Anodised aluminium alloy and plastics | Anodised aluminium alloy and plastics | |
| Operating Temperature | -5 to 40°C | -5 to 40°C | -5 to 40°C | |
| Storage Temperature | -20 to 55°C | -20 to 55°C | -20 to 55°C | |
| Dimensions (Diameter x Length) | 94 x 501 mm | 94 x 513 mm | 98 x 513 mm | |
| Weights in Air/Water2 | 5.1/2.2 kg | 7.0/3.5 kg | 7.0/3.5 kg | |
| Options | Remote, Cable Connected Transducer (see separate datasheet) |
Remote, Cable Connected Transducer (see separate datasheet) |
None |
Frequently asked questions
Software and firmware
Software and control hardware
Manuals and quick start guides
Technical bulletin
Did you know?
WMT is used with Ranger 2 USBL for tracking and communications
