High resolution scanning sonar
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Experience underwater exploration like never before with the Echologger RS900. Setting the benchmark in imaging technology, the RS900 outshines competitors with its unrivaled image quality and scanning speed. Its groundbreaking non-contact rotational mechanism ensures low-noise, frictionless scanning, promising years of operation without breakdowns.
Equipped with smart sensor technology featuring motion compensation through Compass & Gyro, the RS900 provides precise orientation for remarkably effective searching operations. Its advanced features include high-resolution images captured by a piezo-composite broadband transducer, high scanning speed, full 360° scan, sector scan, and Digital CHIRP technology. The non-contact rotational scanning mechanism adds to its reliability, while easy deployment makes it user-friendly.
Opt for the RS900M for even greater versatility, offering multi-frequency operation at 400, 750, and 900 kHz. Dive into the future of underwater exploration with the RS900, where cutting-edge technology meets unmatched performance.
Features
- Real time underwater imaging using acoustics
- High-resolution images with a piezo-composite broadband transducer
- Motion sensing using Compass & Gyro
- High scanning speed
- Full 360° scan & Sector scan
- Digital CHIRP technology
- Non-contact rotational scanning mechanism
- Easy deployment
- RS900M : Multi frequency operation (400, 750 & 900 kHz)
| Pulse | CHIRP & CW |
| Driving Freq. | 900 kHz |
| Beam Angles | H0.8°, V30.0° |
| Max. Range | 60m |
| Range Resolution | 15 mm @50kHz , 7.5 mm @100kHz sampling |
| Rotational Contact | Noncontact Transformer |
| Angle Resolution | 0.1125°, 0.225°, 0.45°, 0.9°, 1.8° |
| Max. Scanning Speed | 4sec @ 5 m, 0.9° |
| Transmitting Pulse Length | 512 us (CHIRP), 10 - 100us (CW) |
| TVG | 60 dB |
| Gain Control | -30 dB ~ + 30 dB |
| Interface MRS | RS232 / RS485 up to 3Mbaud |
| Motion Compensation | Enabled using Compass & Gyro. |
| Power Supply | 12 - 72 VDC, 6W Max |
| Data Transmission | 2 Mbaud@300m, 115200 baud @1 km |
| Connector | SUBCONN MCBH6MSS |
| Depth Rate | 1000 m |
| Material | Al (Hard Anodised) |
| Dimensions | Dia.140 mm, Height 120 mm |
| Weight | 2.6 kg(air) / 0.9 kg(water) |
What is the RS900 designed for?
The RS900 is a high-resolution mechanical scanning sonar designed for users requiring sharper imaging and higher performance than ultra-compact scanning sonars.
Typical applications include:
- high-detail underwater inspection
- obstacle avoidance
- ROV / AUV navigation
- search and recovery
- structure inspection
- scour monitoring
How does the RS900 differ from the MRS900?
The RS900 is the higher-performance imaging sonar in the Echologger scanning sonar lineup.
Compared with the MRS900, it features:
- larger transducer aperture
- sharper beam width
- higher image resolution
- improved target separation / definition
- larger housing / form factor
It is suited to users who prioritise image quality over minimum size/weight.
Why does a larger transducer improve image quality?
A larger transducer allows the sonar to produce a narrower acoustic beam, which improves:
- angular resolution
- target separation
- edge definition
- image sharpness
This results in more detailed and more interpretable sonar imagery.
What beam characteristics does the RS900 provide?
Typical RS900 beam characteristics:
- Horizontal Beam: 0.8°
- Vertical Beam: 30°
This provides substantially sharper imaging than smaller compact scanning sonars.
What acoustic performance does the RS900 provide?
Typical specifications include:
- Operating Frequency: 900 kHz
- Maximum Range: 60 m
- Range Resolution: up to 7.5–15 mm depending on sampling settings
- Full 360° or Sector Scan
These specifications make the RS900 suitable for high-detail inspection and navigation.
What is the RS900M?
The RS900M is the multi-frequency version of the RS900.
It supports:
- 400 kHz
- 750 kHz
- 900 kHz
This allows optimisation between:
- longer range / penetration
- balanced performance
- maximum image sharpness
What scanning speed does the RS900 provide?
Typical maximum scanning speed:
- 4 sec / 360° scan @ 5 m range
Actual scan speed depends on:
- range setting
- angular resolution
- scan sector
- communication speed
What interfaces does the system support?
The RS900 supports:
- RS232 / RS485 communication
- Up to 3 Mbaud
For Ethernet-based systems, the sonar can also be integrated via Echologger's TU-E2S Ethernet Converter.
The system also supports open API / developer integration for OEM applications.
When should I choose RS900 instead of MRS900?
Choose RS900 when:
- maximum image sharpness is required
- target discrimination/detail is critical
- platform size can accommodate a larger sonar
- inspection quality is prioritised over minimum payload size
Choose MRS900 when:
- ultra-compact size/weight is critical
- integration space is limited
- a smaller ROV/AUV platform is used
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