Sonardyne Compatt 6+ LBL Transponder

Compatt 6+ is the new Wideband® 2 and Wideband 3 enabled transponder compatible with all 6G® equipment and Sonardyne’s latest 6G LBL, INS and USBL systems, including Fusion 2, Ranger 2 and Marksman


Compatt 6+ is used for high precision survey and construction operations in all water depths, including: spoolpiece metrology, pipeline touchdown monitoring, structure installation and dynamic positioning reference.

Compatt 6+ offers significant time saving with fast update rates (up to 1 Hz LBL tracking), all made possible using the Wideband 3 acoustic telemetry protocols. Support of Wideband 2 ranges maintains backwards compatibility. This makes any system operating with Compatt 6+ significantly easier to operate therefore de-risking operations, reducing vessel time and reducing training requirements for offshore personnel.

Our Wideband advanced signal processing offers improved acoustic performance in challenging conditions, longer ranges, improved multipath rejection around structures and real-time range diagnostics for quality control. Wideband also reduces the interference to and from adjacent Sonardyne and other acoustic positioning systems.

The integrated communications and navigation technology allows the transponder to be used as a multi-purpose modem, autonomous data logger and navigation reference transponder

Technical information

Feature Type 8300-3111 Type 8300-3113 Type 8300-5213
Depth Rating 3,000 metres 3,000 metres 5,000 metres
Operating Frequency MF (19–34 kHz) MF (19–34 kHz) MF (19–34 kHz)
Transducer Beamshape Omni-Directional Directional Directional
Transmit Source Level (dB re 1 µPa @ 1 m) 187–196 dB (4 Levels) 190–202 dB (4 Levels) 190–202 dB (4 Levels)
Tone Equivalent Energy (TEE)* 193–202 dB 196–208 dB 196–208 dB
Receive Sensitivity (dB re 1 µPa 90–120 dB (7 Levels) 80–120 dB (7 Levels) 80–120 dB (7 Levels)
Ranging Precision Better Than 15 mm
Number of Unique Addresses Wideband 1 & 2 >300
Battery Life (Listening Disabled)
833 Days
1390 Days
External Power Supply 24 V
Safe Working Load (4:1) 250 kg
Operating Temperature -5 to 40°C
Storage Temperature -20 to 55°C
Dimensions; Length x Diameter
Without Sensor Guard
With Sensor Guard
1034 x 178 mm
1034 x 200 mm
1018 x 178 mm
1018 x 200 mm
1018 x 178 mm
1018 x 200 mm
Weight In Air/Water** 23.8/11.8 kg 27.0/14.0 kg 29.0/15.0 kg
Optional Endcap Features
Temperature (±0.1°C) Standard
Tilt Switch (±30–45°) Standard
Strain Gauge Pressure Sensor (±0.1%) Standard
High Precision Strain Gauge (±0.01%) Presens or Keller Optional
Paroscientific DigiQuartz Pressure Sensor 1350 m, 2000 m, 4130 m, 6800 m (±0.01%) Optional
Inclinometer (Tilt sensor)
Range ±90°, Accuracy: ±1°
High Accuracy Inclinometer
Range: ±90°, Accuracy: ±0.05° over 0 – ±15°;  ±0.2° over 0 – ±45°
Sound Velocity Sensor
±0.02 m/s accuracy under calibration conditions 
Release Mechanism Standard
Power for External Sensors Standard
Gyro Input Standard