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2. Global Maritime Distress and Safety System - Wikipedia

   en.wikipedia.org/wiki/Global_Maritime_Distress...

   The Global Maritime Distress and Safety System (GMDSS) is a worldwide system for automated emergency signal communication for ships at sea developed by the United Nations' International Maritime Organization (IMO) as part of the SOLAS Convention. [1]: 1. It is a set of safety procedures, types of equipment, and communication protocols used for ...

3. General radiotelephone operator license - Wikipedia

   en.wikipedia.org/wiki/General_radiotelephone...

   General radiotelephone operator license. The general radiotelephone operator license (GROL) is a license granted by the U.S. Federal Communications Commission (FCC) that is required to operate certain radio equipment. It is required for any person who adjusts, maintains, or internally repairs FCC licensed radiotelephone transmitters in the ...

4. Marine VHF radio - Wikipedia

   en.wikipedia.org/wiki/Marine_VHF_radio

   A vintage (76-89) marine VHF radiotelephone. Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore (for example with harbormasters), and in certain circumstances ship-to-aircraft. It uses FM channels in the very high frequency (VHF ...

5. Digital selective calling - Wikipedia

   en.wikipedia.org/wiki/Digital_Selective_Calling

   Digital selective calling (DSC) is a standard for transmitting predefined digital messages via the medium-frequency (MF), high-frequency (HF) and very-high-frequency (VHF) maritime radio systems. It is a core part of the Global Maritime Distress Safety System (GMDSS). [1] A DSC touch screen control panel showing a (simulated) distress message ...

6. Telenor Kystradio - Wikipedia

   en.wikipedia.org/wiki/Telenor_Kystradio

   Telenor Kystradio (formerly Telenor Maritim Radio) is a part of Telenor and provides maritime telecommunication services along the coast of Norway, operating networks of marine VHF radio, medium frequency, high frequency and Navtex transmitters. As of January 2018 there are two coastal radio stations in Norway, Kystradio nord and Kystradio sør.

7. 2182 kHz - Wikipedia

   en.wikipedia.org/wiki/2182_kHz

   2182 kHz is analogous to channel 16 on the marine VHF band, but unlike VHF which is limited to ranges of about 20 to 50 nautical miles (40 to 90 km) depending on antenna height, [3] communications on 2182 kHz and nearby frequencies have a reliable range of around 50 to 100 nautical miles (90 to 190 km) during the day and 150 to 300 nautical miles (280 to 560 km) or sometimes more at night.