Wireless Fibre Systems has unveiled the S1510, an Underwater Radio Modem that can be used at depths to 33 feet. The modem can be used to help divers, boats, submarines and underwater sensors communicate. From the developers website:
WFS is a pioneer in the use of Radio Frequency (RF) technology for underwater applications. Traditional sonar techniques offer limited bandwidth and can be problematic in noisy or multi-path environments. RF technology can provide an attractive alternative. WFS is developing solutions that are immune to acoustic noise. These include a low data rate, long range, subsea radio telemetry solution and high bandwidth “non-contact” data links suitable for high speed communications and uploads from Autonomous Underwater Vehicles (AUVs). This technology also offers capability for underwater navigation, remote sensing and detection.
The complete story here.