OEM Acoustic Modem: Delphis OEM

PRODUCT SUITE

Delphis OEM Acoustic Modem

The Delphis OEM is a miniature acoustic communication module designed to be embedded directly into any underwater application — highly reliable, low-cost, and low-power, built for integration into ROVs, AUVs, instruments, and sensors.

The Delphis OEM consists of the Delphis acoustic modem PCB and matched piezo ring transducer, ready for integration into your product or system.

Compact, lightweight, and built from the ground up for integration, Delphis OEM delivers 2 km acoustic range in seawater at just 1.5 W peak transmit power — connecting your AUV, ROV, or subsea instrument via a simple RS232 or UART interface.

An an acoustic modem designed for integration

KEY FEATURES

Dimensions & Weight Piezo Ring:
Piezo Ring: 33.70mm x 13.31mm, 19.5g
Modem Board: 10.88mm x 46.41mm x 29.24mm, 23g
Supply Current:
Listening 2.5mA
Receiving: 5mA
Transmitting max 300mA
Supply Voltage: 3-6.5v dc
Frequency Range: 24–32 kHz
Acoustic Source Level: ~168 dB re 1μPa @ 1m
Data Packet Size: 64-Byte Data Packet Transmission
Data Rate: 640 bits/s raw / 463 bits/s throughput
Addressing: Connect up to 256 uniquely addressable units
Ranging Precision: sub-meter, ~10cm
Range: 2 km in sea water and 3.5 km in fresh water
Interface: RS232 interface

Compact, Low Power and Reliable OEM Modem

Flexible Integration
Supply your own housing, platform, or subsea system — Delphis OEM gives you the PCB and piezo ring transducer to integrate acoustic communications exactly where and how you need it.
Low Power Operation
With extremely low power consumption at all operating states, Delphis OEM is built for battery-powered platforms and long-duration deployments where energy budget is non-negotiable.
Compact and Lightweight
A miniature modem PCB and transducer footprint means Delphis OEM fits where larger acoustic systems simply won’t — AUVs, gliders, sensors, and space-constrained subsea instrumentation.
Reliable Underwater Communications
Spread spectrum signalling and built-in error correction give Delphis OEM dependable data transfer and ranging performance even in acoustically noisy or complex underwater environments.

Scalable to Your Network
With support for up to 256 uniquely addressable units, Delphis OEM scales from a simple point-to-point link to a full distributed subsea network for IoUT, monitoring, and sensing applications.
Minimal Ecological Impact
Low-intensity, short-burst transmissions are engineered to minimise acoustic disturbance to marine wildlife — important for research, protected area deployments, and environmentally sensitive projects.
Built for Developers
Whether you’re prototyping a new subsea platform or deploying at scale, Delphis OEM gives OEMs, researchers, and system integrators a proven acoustic communication foundation to build on.