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- W1999297384 abstract "The public radiophone system presently uses 55 VHF channels 25 kHz spaced. It is manually operated and will soon be channel limited in London. Forecasts indicate a need for greatly increased capacity to cater for growth before further bandwidth is likely to be made available. Tests demonstrate that 12½ kHz spaced channels could be used, and traffic statistics show that over half of the used air time is taken up by operation and switching procedures. This paper proposes a new type of automatic system, using 12½ kHz spaced channels, in which all call set-up procedures are conducted by fast data transmission over a common channel. The traffic channels are thereby used for successful calls only and the capacity would be more than quadrupled; additional advantages are that the base stations would be used much more effectively, hence yielding a minimum-cost solution." @default.
- W1999297384 created "2016-06-24" @default.
- W1999297384 creator A5087748760 @default.
- W1999297384 date "1977-01-01" @default.
- W1999297384 modified "2023-09-25" @default.
- W1999297384 title "Proposals for increasing the user capacity of the British post office public radiophone system" @default.
- W1999297384 doi "https://doi.org/10.1109/vtc.1977.1622430" @default.
- W1999297384 hasPublicationYear "1977" @default.
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