ROVNav 6+ (plus) is a Wideband 3 and Wideband 2 ranging LBL and telemetry transceiver specifically designed for installation on Work-class ROVs.
At a glance
High power, long range LBL transceiver for ROVs
Wideband 3-enabled supporting embedded sensor data with ranging data
Optimised for Fusion 2; compatible with Fusion 1
3,000, 5,000 or 7,000 m depth rated options
USBL mode for emergency ROV relocation
Modem mode for harvesting data from Sonardyne logging sensors; Fetch, AMT...
Engineered for Fusion 2 LBL
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Overview
ROVNav 6+ uses our new Wideband 3 signal technology, which is key to unlocking the benefits of your Fusion 2 LBL system.
It allows, for the first time, sensor telemetry data (e.g. pressure, depth, temperature) from a seabed or structure deployed Compatt 6+ to be embedded within navigation (ranging) data. This change has a big impact on operations such as structure installation, as breaks in tracking to get sensor reading updates at vital moments, are now a thing of the past.
Its compatibility with Wideband 3 and Wideband 2 telemetry commands, and support of high power Wideband 2 ranging protocols, proven for their accuracy and robustness, means the ROVNav 6+ offers improved range and acoustic performance in challenging conditions such as on noisy vehicles or in multipath environments.
ROVNav 6+ is also a fully functional USBL responder or transponder, compatible with Wideband 2 USBL systems and HPR400. The internal li-ion rechargeable battery pack also enables emergency transponder mode, so if the umbilical and therefore power is cut to the ROV it can still be located by USBL.
The omni-directional remote MF transducer makes installation on an ROV easy. ROVNav 6+ is designed to be rugged and relatively lightweight and utilises robust underwater connectors. ROVNav 6+ supports a range of internal sensors including: strain gauge pressure, PRT temperature and MEMS based inclinometer.
ROVNav 6+ is also fully compatible with our modem and logging equipment such as AMT and Fetch products, allowing it to be used to retrieve data or configure logging regimes. It supports all of our Wideband 2 and Wideband 3 spread spectrum acoustic communication; 100 to 9,000 bps data rates can be selected depending on the environment.
Sensor options include a Digiquartz pressure sensor, precision inclinometer and altimeter interface. This provides a fully featured ROV manipulator deployable tool/sensor pack for a range of different applications including metrology, bathy survey and structure deployment operations, without the requirement for any additional interfacing on the ROV.
Resources
| Feature | 8340-3161 | 8340-5261 | 8340-7261 |
|---|---|---|---|
| Depth Rating | 3,000 m | 5,000 m | 7,000 m |
| Operating Frequency | MF (20–34 kHz) | MF (20–34 kHz) | MF (20–34 kHz) |
| Beam Shape | Omni-directional | Omni-directional | Omni-directional |
| Transmit Source Level (dB re 1 µPa @ 1 m) | 187–196 dB (4 levels) | 187–196 dB (4 levels) | 187–196 dB (4 levels) |
| Range Precision | Better than 15 mm | Better than 15 mm | Better than 15 mm |
| Serial Communications | RS232 or RS485 (half-duplex) | RS232 or RS485 (half-duplex) | RS232 or RS485 (half-duplex) |
| Battery Life Li-ion (Listening) | 3 days | 3 days | 3 days |
| Operating Voltage | 24 or 48 V dc (±10%) | 24 or 48 V dc (±10%) | 24 or 48 V dc (±10%) |
| Serial Communications Connector | Subconn (8-way female) | Subconn (8-way female) | Subconn (8-way female) |
| Remote Transducer Connector | Burton (3-way male) | Burton (3-way male) | Burton (3-way male) |
| Housing Mechanical Construction | Hard anodised aluminium 6082 | Hard anodised aluminium 6082 | Hard anodised aluminium 6082 |
| Remote Transducer Mechanical Construction | Stainless steel 316 | Stainless steel 316 | Stainless steel 316 |
| Dimensions (Maximum) (Length x Diameter) | 768 x 200 mm | 768 x 200 mm | 768 x 200 mm |
| Weight in Air/Water | 14.3/5.3 kg | 14.7/5.7 kg | 15.5/6.0 kg |
