Ship Radio Stations

Equipment

• VHF Radiotelephone (156-162 MHz) - Used for voice communications with other ships and coast stations over short distances.
• Digital Selective Calling (DSC) - Used with VHF, MF, and HF radio systems to establish communications with (call) ships or coast stations or to receive calls from other ships or coast stations. Uses two tone digital signaling protocol to selectively call a particular station or to call a group of stations, all stations in a particular geographic area, or to call all stations.
• Radar - Used for navigating, direction-finding, locating positions, and ship traffic control.
• EPIRB - Emergency Position Indicating Radio Beacons, or EPIRBs, are used when a ship is in distress, to emit a radio signal marking the ship's location. Extreme care must be taken to prevent inadvertent activation and batteries should be replaced prior to expiration date.
• Single sideband Radiotelephone (2-27.5 MHz) - Used to communicate over medium and long distances (hundreds, sometime thousands of nautical miles).
• Satellite Radio - Used to communicate by means of voice, data or direct printing via satellites.
• Radiotelegraph - Used to communicate by means of Morse code, facsimile, or narrow-band direct-printing, any technique for coding and decoding printed text over radio.
• Survival Craft Radio - Used only for communications during distress incidents between ship and rescue vessels/aircraft or between lifeboats and rafts.
• On Board Radio - These are low-powered radios used for internal voice communications on board a ship or for authorized short range communications directly associated with ship operations.