Siel Seacom U1 Underwater communication system for Military Diving: SEACOM U1 is a high power, single sideband, multichannel underwater communication system. The device is perfect for any type of activity where it is necessary to assure the communication between divers and between divers and the surface.
UNDERWATER COMMUNICATION SYSTEMS FOR MILITARY DIVING
Siel Surface Unit combined ultrasonic and radio communication Seacom S2 for Military Diving: SEACOM S2 is an ultrasonic, single sideband multichannel combined surface unit that allows to communicate either with an underwater diver (through the acoustic link ) either with a diver on surface (through the VHF radio link).
Siel Integrated Diver Communication System Sealand20A for Military Diving is an integrated diver voice communication system allowing diver-to-diver and diver-at-surface voice communications with combined ultrasonic and radio links.