EchoLogger ECT D052S echo sounder
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The EchoLogger ECT D052S is a dual-frequency (50/200 kHz) single-beam echo sounder for drone bathymetry in deeper water and for sediment surveys, part of SPH Engineering's Integrated Systems. HobiTech supplies it in India.
Technical Specifications
| Type | SBES, Dual-frequency |
| Acoustic frequency | 50/200 kHz |
| Measurement range | 1.00–200 m (50kHz); 0.50–200 m (200kHz) |
| Beam width | 27°/7° (50/200 kHz), conical (-3 dB) |
| Accuracy | 0.2% of the depth measurement |
| Range resolution | 1.0 mm |
| Integrated tilt/roll and temperature sensors | Yes |
| Suitable for sediment measurements | Yes |
Mechanical
| Weight (echo sounder, in air) | 1.85 kg |
| Weight (all components, in air) | 2.45 kg (sensor, SkyHub, altimeter, housing, cables, mountings) |
| Cable length | 2.5 m |
| Interface | RS232 with SkyHub connector |
What's in the kit
- EchoLogger ECTD052S echo sounder
- Harness with carabiner
- Stainless steel housing
- RS232 data cable for SkyHub
- Transport case
Documentation & data sets
What is the EchoLogger ECT D052S used for?
The ECT D052S hangs below a drone and measures water depth directly under the aircraft. Its two frequencies make it the sediment option in the EchoLogger range. SPH Engineering explains that 50 kHz sound can penetrate organic or light sediments and measure depth to the hard bottom. That makes it possible to map the depth and also measure the thickness and amount of sediment.
Typical jobs are dredging planning and monitoring, water depth mapping and hydrology. Both channels reach 200 m. Accuracy is 0.2% of the measured depth, with 1.0 mm range resolution. SPH Engineering publishes a sample data set for the ECT D052S from a lake near Tartu, Estonia.
How does the ECT D052S compare with other EchoLogger sounders?
| Specification | ECT 400S | ECT D24S | ECT D052S |
|---|---|---|---|
| Frequency | 450 kHz | 200/450 kHz | 50/200 kHz |
| Range | 0.15–100 m | 0.50–200 m / 0.15–100 m | 1.00–200 m / 0.50–200 m |
| Beam width | 5° | 10°/5° | 27°/7° |
| Sediment measurement | No | No | Yes |
| Echo sounder weight | 1.3 kg | 1.3 kg | 1.85 kg |
For very shallow, weedy water, look at the ECT D24S; for a single-frequency option, the ECT 400S.
How does it work with SkyHub, UgCS and your drone?
- SkyHub: the RS232 data cable connects to the SkyHub on-board computer, which logs the depth data. The SkyHub echo sounder software package supports the ECT 400, D24 and D052, sends real-time depth data to the ground station and logs in CSV, NMEA-0183 and SEG-Y.
- Altimeter: SPH Engineering uses an altimeter so the drone flies automatically at a set height over the water and handles tides and waves.
- UgCS: missions are planned in SPH's UgCS flight-planning software.
- Drones: DJI M400, M350 and M300, Inspired Flight IF800 and IF1200A, WISPR RangerPro, and comparable Pixhawk/Cube platforms.
- Processing: Eye4Software Hydromagic Survey maps depth areas from echo sounder data.
The echosounder USB converter lets you test and configure the sounder, update firmware, or run it on a surface vessel. SPH Engineering states that additional components and software must be purchased for drone use; the complete equipment list comes with the quote. Read more on SPH's echo sounder page. EchoLogger sounders are made by EofE Ultrasonics of South Korea (echologger.com).
Why buy the ECT D052S from HobiTech?
HobiTech is an authorised SPH Engineering partner based in Bengaluru, India. Every order comes with a GST invoice, and you have a local team for the sensor, the drone and the software. SPH's bathymetry training courses cover echo sounder data collection (BATHY-1) and processing (BATHY-2). See all sensors in our bathymetry collection.
Frequently Asked Questions
Can the ECT D052S measure sediment thickness?
Yes. The 50 kHz channel penetrates organic or light sediments to the hard bottom, so the depth and the thickness of the sediment layer can both be mapped.
What depth range does the ECT D052S measure?
1.00 to 200 m at 50 kHz and 0.50 to 200 m at 200 kHz, with 0.2% accuracy of the depth measurement.
What is the difference between the ECT D052S and ECT D24S?
The D052S uses 50/200 kHz for deeper water and sediment work. The D24S uses 200/450 kHz for shallow water with dense vegetation and cannot measure sediment.
Which drones can carry the ECT D052S?
DJI M400, M350 and M300, Inspired Flight IF800 and IF1200A, WISPR RangerPro, and comparable Pixhawk/Cube platforms. The sounder weighs 1.85 kg, and all airborne components weigh 2.45 kg.
Is SkyHub included with the ECT D052S?
No. The kit includes the RS232 data cable for SkyHub, but the SkyHub computer, software package, altimeter and UgCS are bought separately.
How do I buy the EchoLogger ECT D052S in India?
Use Request a quote on this page, or call HobiTech on +91 70225 26509. We confirm the price and configuration, and every order comes with a GST invoice.