Geostationary maritime satellites, one over the Pacific and one over the Atlantic Ocean, are planned to make available high-speed communications and navigation (position determination) services to ships at sea. A shipboard satellite terminal, operating within the authorized maritime L-band, 1636.5 to 1645.0 MHz, will allow ships to pass voice, teletype, facimile, and data messages to shore communication facilities with a high degree of reliability. The shore-to-ship link will also operate in the maritime L-band from 1535.0 to 1543.5 MHz. A significant number or maritime/commercial ships are expected to be equipped with an L-band satellite terminal by the year 1980, and so consequently, there is an interest in determining electromagnetic compatibility between the proposed L-band shipboard terminal and existing, on-board, shipboard communications/electronics and electrical systems, as well as determining the influence of shore-based interference sources. The shipboard electromagnetic interference survey described was conducted on-board the United States Line's American Leader class (15,690 tons) commercial container ship, the American Alliance from June 16 to 20, 1974. Details of the test plan and measurements are given. (Author)
In-Harbor and at-Sea Electromagnetic Compatibility Survey for Maritime Satellite L-Band Shipboard Terminal
1974
157 pages
Report
Keine Angabe
Englisch
Common Carrier & Satellite , Communication equipment , Data links , Electromagnetic compatibility , Maritime satellites , Ships , Ultrahigh frequencies , Atlantic ocean , Electromagnetic interference , Electronic equipment , Facsimile communication , Navigation instruments , Pacific ocean , Reliability , Teletypewriter systems