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The GROL is the most common FCC commercial license, accounting for about 80% of those issued by the commission, because of the wide range of positions that require it. Like all FCC commercial licenses, the GROL is issued for the lifetime of the licensee. The GROL conveys all of the operating authority of the Marine Radio Operator Permit (MROP).
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 ...
FCC amateur radio station license of Al Gross. In the United States, amateur radio licensing is governed by the Federal Communications Commission (FCC). Licenses to operate amateur stations for personal use are granted to individuals of any age once they demonstrate an understanding of both pertinent FCC regulations and knowledge of radio station operation and safety considerations.
A GMDSS Radio Operator's License is necessary for a person to use required GMDSS equipment. The holder of both certificates can be issued one GMDSS Radio Operator/Maintainer License. Finally, the GMDSS Restricted License is available for VHF operations only within 20 nautical miles (37 km) of the coast.
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.
Short Range Certificate. The Short Range Certificate is an internationally valid certificate issued to marine radio station operators. It entitles the holder to participate in marine communications on leisure crafts using Marine VHF radio and DSC (Digital Selective Calling), while in the GMDSS A1 sea areas.
Amateur radio operators in international waters or airspace are subject to the reciprocal licensing requirements pertaining to the country under which the vessel is flagged. Permission by the vessel's captain for on-board use of amateur radio equipment is often a legal requirement. [13]
Adjacent frequencies are often used by illegal operators using modified CB or amateur radio equipment. Operators sometimes refer to this activity as freebanding. The Industrial/Business Radio Pool of the Private Land Mobile Radio Services has several channels just above the Citizen's Band, at 27.430, 27.450, 27.470, 27.490, 27.510, and 27.530 MHz.