Page 73: of Marine Technology Magazine (September 2023)

CSIGNUM www.csignum.com

CSignum demonstrated its new Radi-

EM Modem earlier this year. The company touts RadiEM as the ? rst platform to use low-frequency elec- tromagnetic (EM) ? elds to transmit more data wirelessly. According to

CSignum, RadiEM is the only tech- nology that can transmit data through the water-air boundary, water column,

SUNFISH ZF MARINE seabed and subsea structures, as well https://sun? shinc.com/ www.zf.com as connect digital devices in networks

Sun? sh Inc is an underwater robotics ZF manufactures and supplies marine below the water with those networks company, and its ? agship product is the propulsion components, as well as com- on land and in the air. “EM signals

SUNFISH AUV, which stands out for its plete systems for all types of vessels. are resilient sustaining their integrity maneuverability and advanced naviga- ZF Marine provides transmissions (re- where sound and light scatter: at the tion capabilities. versing, non-reversing and hybrid), pro- surface; in shallow splash zones; aer-

It is designed to excel in real-time 3D pellers, thrusters, steering systems and ated, turbid and bio-fouled waters; mapping and autonomous decision- electronic control systems for a com- and, anywhere ambient light, line of making, even in communication-denied prehensive range of applications with sight and noise interference is an is- and intricate underwater scenarios. a power range from 10 to 12,000kW in sue. Because EM ? elds are also silent

Its proprietary AI code powers the commercial and fast crafts as well as in and invisible, they are more secure as

SUNFISH AUV, and is designed to pleasure crafts and yachts. well as safer for the environment and enable real-time 3D mapping and au- ZF Marine supplied four well-mounted marine life,” CSignum shared. “We tonomous decision-making in complex, azimuth thrusters (AT) for the construc- expect RadiEM to become the cable- communication-challenged environ- tion of two Reach Remote unmanned free gateway for marine data through ments, making it an ideal solution for offshore surface vehicles (USV) built the surface of the water,” said Chris asset inspection and exploration across by Kongsberg Maritime for Reach Sub- Brooks, CEO of CSignum. “RadiEM industries. sea. The Reach Remote project uses an is already successfully deployed in a

Its achievement this year is our collab- unmanned offshore surface vehicle in multitude of use cases from AUV/ASV oration with NOAA Ocean Exploration conjunction with a next-generation re- (HESS and Ocean Aero) and tidal wa- and the Seaalaska Heritage Institution motely operated vessel. The remote and ter data recovery to offshore structural to explore submerged caves and rock autonomous platform will transform the and met ocean data transmission to re- shelters in southeast Alaska. market for remotely operated vessels al-time ADCP data. RadiEM has reli-

This multi-year project not only push- surveys and inspections services. Thus, ably sent data at a range of 28-30m via es the boundaries of exploration but also it dramatically lowers operational costs underwater modems to topside receiv- transforms our understanding of human and the environmental footprint of sub- ers transmitting at 200bps. The battery migration to the Americas, with sites sea operations. life is phenomenal, too, enabling up dating back to the late Pleistocene era. Two fully electric driven ZF ATL 4014 to 3 months on standard external re-

Together, we’ve uncovered uncharted WM-FP per vessel ensure unmatched chargeable batteries before needing a ocean areas and made groundbreaking and reliable maneuverability. The com- recharge or replacement.

scienti? c, economic, and cultural dis- pact and ef? cient design of the thrust- coveries, including the discovery of ? sh er helps to reduce the life cycle costs weirs dating back 11,100 years ago. (LCC). www.marinetechnologynews.com 73

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