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WMT 6

High power USBL tracking and telemetry transponder

Engineered for: AUV, ROV, Towfish

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.


At a glance

Use it with Ranger 2 for deep water, long layback tracking tasks

High power acoustic output; 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

Small in size, big in performance

Want to find out more?

Overview

WMT is a 6G compatible, high acoustic output power USBL transponder available in three depth versions: 3,000 m, 5,000 m and 7,000 m. The 5,000 m and 7,000 m versions have 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.

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.

Resources

Feature Type 8190-3111 Type 8190-3112 Type 8190-5212 /7212
Depth Rating 3,000 m 3,000 m 5,000 and 7,000 m
Operating Frequency MF (19–34 kHz) MF (19–34 kHz) MF (19–34 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 512 mm 98 x 512 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

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Small in size, big in performance