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2. Marine VHF radio - Wikipedia

   en.wikipedia.org/wiki/Marine_VHF_radio

   Marine radio was the first commercial application of radio technology, allowing ships to keep in touch with shore and other ships, and send out a distress call for rescue in case of emergency. Guglielmo Marconi invented radio communication in the 1890s, and the Marconi Company installed wireless telegraphy stations on ships beginning around 1900.

3. Maritime call sign - Wikipedia

   en.wikipedia.org/wiki/Maritime_call_sign

   One of the earliest applications of radiotelegraph operation, long predating broadcast radio, were marine radio stations installed aboard ships at sea. In the absence of international standards, early transmitters constructed after Guglielmo Marconi 's first transatlantic message in 1901 were issued arbitrary two-letter calls by radio companies ...

4. Maritime mobile amateur radio - Wikipedia

   en.wikipedia.org/wiki/Maritime_mobile_amateur_radio

   An amateur radio installation on a 28' yacht, including 100W HF transceiver with microphone, manual antenna tuner, and morse key. Maritime mobile amateur radio is an amateur radio transmission license that allows maritime operators to install and use radio while they operating at sea. The call sign of operators is extended by adding the suffix ...

5. Automatic Transmitter Identification System (marine) - Wikipedia

   en.wikipedia.org/wiki/Automatic_Transmitter...

   Radio transmitter with a label indicating it will identify any transmisssions from it as coming from "PF7297" using the ATIS protocol [ 1 ] The Automatic Transmitter Identification System ( ATIS ) is a marine VHF radio system used and mandated on navigable inland waterways in Europe for identifying the ship or vessel that made a radio transmission.

6. Coast radio station - Wikipedia

   en.wikipedia.org/wiki/Coast_radio_station

   A coast (or coastal) radio station (short: coast station) is an onshore maritime radio station which monitors radio distress frequencies and relays ship-to-ship and ship-to-land communications. A coast station (also: coast radio station ) is – according to article 1.75 of the International Telecommunication Union's (ITU) ITU Radio Regulations ...

7. AT&T High Seas Service - Wikipedia

   en.wikipedia.org/wiki/AT&T_High_Seas_Service

   The AT&T High Seas Service was a radiotelephone service that provided ship-to-shore telephone calls, which consisted of stations WOO (transmitter station in Ocean Gate, New Jersey), receiver station in Manahawkin, New Jersey, United States), [1] WOM ([Receiver site in Plantation, Florida; transmitter on Krome Ave. and KMI (transmitter station in Dixon, California), receiver station in Point ...