MARINE HF RADIO INSTALLATIONS ARE THE ONLY MEANS OF REMOTE COMMUNICATIONS IN SEA AREA A4 FOR GMDSS (ARCTIC BASIN OF RUSSIA)
Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S O Makarova
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The article is devoted to topical issue of using long-range radio communications in the Arctic region of Russia. It is shown that modern naval vessel operating in high latitudes, is equipped in accordance with the requirements of the GMDSS. The paper presents brief characteristics of such equipment and the possibilities of its different types. The analysis of the operation of VHF equipment of the vessel. Analyses are available on the ship's satellite communications. Detail ship's satellite
... ip's satellite communications INMARSAT Fleet Broad Band. It is shown that VHF and satellite communications occupy certain niches, but they are not suitable for sustained long distance communications. It becomes obvious that MF/HF-radio is most suitable for use in high latitudes. The obvious advantages and difficulties of applying this type of communication. It is shown that the ionosphere is the cause of increase the communication distance and the appearance of fading. For a stable connection is needed to the wave forecast and the choice of operating frequencies. In the work the study is concluded that the use of HF radio for the exchange of various types of information on practically any distance. It is shown that the number of reasons would have on this process stirring influence, will need to take into account the time of day, solar activity, range and direction radio feature Medoborudovania Northern territories, low exchange rate and high noise level. The conclusion about the necessity of using the latest achievements of science and technology, development of research towards the use of HF radio, and the use of different modes of radiation, methods of anti-interference, increasing speed of information transfer and modernization of equipment.