Selective calling from coast stations to ship stations would expedite handling of traffic and would be faster and more positive than calling by voice; three different systems have been proposed for international adoption; they are two-tone system, sequential single frequency code system, and composite tone system; factors influencing practical adoption of system are discussed in terms of these three systems.
Selective calling in maritime mobile services
Instn Elec Engrs -- Conference Publ
1966
6 pages
Aufsatz (Zeitschrift)
Englisch
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