Relying on electromagnetic fields means EM-1 signals easily pass through the surface of water instead of scattering like sound and light waves. In fact, devices signaling with cable-free, highly resilient EM-1 also transmit reliably through the water column, seabed and subsea structures. Paired EM-1 modems can be mounted on piles, buoys, nets, or pontoons above, on or below the water and do not require line-of-sight placement.
Transmission from Sensor to Shore
Ideal for deployments and applications in the splash zone and shallow water environments, where adverse conditions may exist, the EM-1 is designed to pair with underwater sensing systems, enabling cable-free connections from below water to topside EM-1s paired above the waterline. Compatible with sensing systems such as multiparameter sondes and ADCPs, EM-1 modems use industry standard data interfaces like RS-232.
EM-1 Value Over Existing Solutions
As the first and only reliable cable-free data transmission through the surface of water, EM-1’s using EM-1 unlock flexible placement and movement of underwater digital devices in and between more locations.