Marine SSB radios are high-frequency communication systems used for long-range maritime communication. They operate on single-sideband modulation to ensure clear and efficient voice transmission over vast distances. These systems are essential for ship-to-ship and ship-to-shore communication, especially in remote ocean areas.

Marine SSB Radios typically operate in the HF (High Frequency) range of 1.6-30 MHz, with power outputs ranging from 100W to 150W. They are designed for long-range communication, often covering distances up to 4,000 nautical miles. Common sizes include compact desktop or rack-mounted units, with dimensions around 300mm x 200mm x 100mm. They are built to marine-grade standards (IPX7 or higher) for water and corrosion resistance. Materials include durable plastics, aluminum, and stainless steel. Buoyancy is not applicable as they are installed on vessels. Viscosity is irrelevant for solid-state electronics. These systems often include DSC (Digital Selective Calling) and GPS integration for emergency signaling.