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
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
A selective calling system for the maritime mobile services at sea
Tema Archive | 1972
|Maritime mobile digital selective calling (Equipment development and operational test)
Tema Archive | 1974
|The selective calling system for maritime communications
Tema Archive | 1973
|Digital selective calling and direct printing techniques in the mobile maritime service
Tema Archive | 1977
|Tema Archive | 1986