Hull-mounting ultracompact echosounder
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Echologger APIs
Ultracompact Hull Mounting Echosounders, exemplified by the ETH D24, ETH D710, and ETH400, have been meticulously crafted for efficient mounting on the hulls of both manned and unmanned boats, ensuring unparalleled accuracy in bathymetric surveys. This design innovation brings forth a transformative solution in underwater data collection, allowing seamless integration into various marine operations.
The ETH D24, ETH D710, and ETH400 showcase a versatile hull mounting design compatible with hull thicknesses as minimal as 1mm, offering adaptability to a range of vessels. This thoughtful engineering ensures that these echosounders can be effortlessly installed, providing a robust solution for bathymetric surveys without compromising on accuracy.
The plug-and-play functionality of these echosounders enhances user convenience, allowing direct connectivity to a laptop PC via the USB port for the USB version. Alternatively, a serial interface (RS232, 485) is also available, providing flexibility to cater to different user preferences and system configurations.
Real-time backscatter data collection along the full water columns sets the ETH D24, ETH D710, and ETH400 apart, delivering comprehensive insights into underwater environments. Compatibility with leading software platforms such as Hypack, HydroMagic, BeamWorx and ReefMaster further enhances their utility, ensuring seamless integration into existing marine survey workflows.
In essence, the ETH D24, ETH D710, and ETH400 ultracompact echosounders embody a perfect synergy of design, functionality, and adaptability. Their hull-mounting capability, versatile connectivity options, and advanced features make them indispensable tools for professionals engaged in bathymetric surveys across manned and unmanned marine platforms.
Features
ETH D24 & ETH D710
- Versatile hull mounting design from 1mm hull thickness
- Plug and Play with a laptop PC via USB port (USB version)
- Or serial interface (RS232, 485) is also available
- Real-time backscatter data collection along full water columns
- Compatible with Hypack, HydroMagic and ReefMaster
- User friendly GUI software provided for instant image update
- Tilt sensor integrated as standard
- Buad rate up to 3Mbaud for ping rate up to 100 Hz
ETH D24 & ETH D710
| Acoustic Frequency | 200 kHz / 450 KHz (ETH D24), 750 kHz / 1MHz (ETH D710) |
| Beam width | 10° / 5° (ETH D24), 3.5° / 2.5° (ETH D710) ,Conical (-3dB) |
| Transmit Pulse Width | 10µsec ~ 200µsec |
| Transmit Power | Max. 50 W (adjustable) |
| TVG Control | Up to 60 dB |
| Gain Control | -30 dB to +30 dB |
| Input Signal Attenuator (-20dB) | Activation time 0~300,000 µSec |
| Ranges | 0.5 ~ 200 m (200kHz) , 0.15 ~ 100 m (450kHz), 0.03 ~ 50 m (750kHz), 0.02 ~ 30 m (1MHz) |
| Repetition (Ping) Rate | 100 Hz max |
| Sampling Rate (Profiling mode) | Max 100kHz; adjustable, or auto mode (default) |
| Water Column Resolution | Appx. 7.5 mm @100kHz sampling |
| Altimeter Range Resolution | 1.0 mm |
| Temperature sensor Resolution | 0.1°C |
| Tilt sensor integrated | Dual-axis (Roll & Pitch) ±90° , Inclination data resolution 0.1° |
| Synchronization | Outward / Inward (S/W selectable) |
| Analog Output Interface | 1.25V, 2.5V, 5V, 10V max (S/W selectable) , Distance or Envelope |
| Digital Output Interface | USB or Serial (RS-232, RS-485, selectable by select pin) |
| Communication Speed | 4,800 ~ 921,600, 3M baud (115,200 default) |
| Data Output Format | Profile 10bit/12bit resolution ASCII Text , Profile 12bit resolution Binary , Profile 8bit resolution Binary (12bit compressed to 8bit) , Altitude NMEA0183 / Altitude Simple |
| Multi node Inter-networking(RS485 only) | Up to 32 units |
| Configuration and Data reading | Echologger Control Program or any Terminal program |
| Connector | LTW 12-05PMMS-SH8003 (IP68) |
| Power supply | USB :USB Powered, 2W max / RS232 or RS485: 10 ~ 75 VDC, 2W max, Internally isolated |
| Operation Temperature | -10°C +50°C |
| Operating Depth | 1m (for surface vehicles) |
| Housing | Acetal |
| Dimensions | D65 mm x L68 mm, |
| Weight (100m rate) | 175g (exc. cable) |
ETH400
| Acoustic Frequency | 450 KHz |
| Beam width | 5° Conical (-3dB) |
| Transmit Pulse Width | 10μsec ~ 200μsec (10μsec step) |
| Ranges | 0.15 m ~ 100 m |
| Housing | Acetal |
| Repetition (Ping) Rate | 10 Hz max |
| Sampling Rate | 100 kHz |
| Water Column Resolution | appx. 7.5 mm |
| Altimeter Range Resolution | 1.0 mm |
| Temperature Resolution | 0.1°C |
| Tilt sensor integrated (optional) | Dual-axis, horizontal operation : ±90° |
| Tilt sensor integrated (optional) | Inclination data accuracy : 0.1 |
| Digital Output Interface | USB (ETH400U) or RS-232,485,422 (ETH400S) |
| Communication Speed | 4,800 ~ 115,200 baud (115,200 baud default) |
| Data Output Format | ASCII TXT, NMEA0183, or user defined (optional) |
| Configuration and Data reading | Echologger Control Program or any terminal program |
| Operation Temperature | -10°C +50°C |
| Power supply | USB powered, 2W max (ETH400U), 8~75 VDC, 2W max (ETH400S) |
| Dimensions | D65 mm x L68 mm, |
| Weight (100m rate) | 175g (exc. cable) |
| Other features | Hypack, HydroMagic, ReefMaster compatible (NMEA, Echogram) |
What is the Hull Mounting Echosounder designed for?
The ETH series is an ultra-compact hull-mounting echosounder designed for direct installation through the hull of manned or unmanned surface vessels.
Typical applications include:
- bathymetric survey
- USV / ASV integration
- permanent vessel installation
- shallow water monitoring
- sediment / scour monitoring
What is the advantage of hull mounting compared with pole mounting?
Hull mounting offers a cleaner and more permanent installation by integrating the sonar directly into the vessel hull.
Key advantages include:
- no external pole or bracket required
- reduced drag and snag risk
- improved installation robustness
- ideal for unmanned / permanently equipped vessels
Which hull thicknesses are supported?
The ETH hull-mounting design supports installation on hulls from approximately:
- 1 mm thickness and above
This allows installation on a wide range of:
- aluminium hulls
- composite hulls
- plastic hulls
- USV platforms
Which acoustic models are available?
The Hull Mounting series is available in several acoustic configurations:
- ETH200 → 200 kHz single frequency
- ETH400 → 450 kHz single frequency
- ETH D24 → 200 / 450 kHz dual frequency
- ETH D710 → 750 kHz / 1 MHz dual frequency
This allows selection based on required range and resolution.
How do I choose between ETH200, ETH400, ETH D24, and ETH D710?
Choose ETH200 when:
- longer shallow-water range is prioritised
- conventional 200 kHz single-frequency operation is sufficient
Choose ETH400 when:
- higher shallow-water resolution is preferred
- reduced beam footprint is beneficial
Choose ETH D24 when:
- dual-frequency flexibility is required
- both range and shallow-water resolution are important
Choose ETH D710 when:
- ultra-shallow / very short-range measurement is required
- highest resolution and narrowest beam are prioritised
Does the Hull Mounting series provide backscatter / echogram data?
Yes. ETH D24 and ETH D710 provide full real-time backscatter / echogram data across the water column.
This enables:
- bottom tracking
- water column analysis
- sediment / turbidity interpretation
- bubble / target detection
ETH200 and ETH400 provide depth-focused single-frequency output depending on configuration.
Does the system include a tilt sensor?
Yes. ETH D24 and ETH D710 include an integrated dual-axis tilt sensor as standard.
This provides roll/pitch data for improved deployment awareness and correction.
Is the system compatible with hydrographic software?
Yes. The Hull Mounting series supports standard hydrographic integration formats and is compatible with major hydrographic software platforms.
Commonly used software includes:
- BeamWorX
- HydroMagic
- HYPACK
- QPS Qinsy
- EIVA NaviSuite
- Trimble HydroPro / Trimble Access
- Chesapeake SonarWiz
BeamWorX, HydroMagic, and HYPACK can additionally utilise echogram/backscatter outputs where supported.
What interfaces are available?
Depending on model/version:
- USB models (U) → direct plug-and-play laptop / embedded PC connection
- Serial models (S) → RS232 / RS485 / RS422
For Serial (S) models, Ethernet-based integration is possible via Echologger's TU-E2S Ethernet Converter.
What makes the ETH series suitable for USVs?
The ETH series is particularly well suited for unmanned surface vessels because it offers:
- ultra-compact form factor
- integrated hull-mount design
- no external mounting brackets
- low drag installation
- USB / serial / Ethernet integration flexibility
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