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1986•Unpublished venueRequires access

Aeronautical telephone system in Japan

Y. Shimanuki, K. Omatsuzawa, T. Mitsuishi, K. Nishino

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Abstract

NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) has developed an aeronautical telephone system, which will be commercially available in 1986. This system operates on the 800-MHz frequency band, and with six base stations, covers almost all domestic air routes in Japan. Futhermore, it utilizes Phase Modulation(PM) to satisfy the required speech quality for public telephone service. Mobile Control Stations(MCS) and Automobile Switching Centers (AMC) are shared with the automobile telephone system to reduce the system s construction costs.

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What this paper is about

NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) has developed an aeronautical telephone system, which will be commercially available in 1986. This system operates on the 800-MHz frequency band, and with six base stations, covers almost all domestic air routes in Japan. Futhermore, it utilizes Phase Modulation(PM) to satisfy the required speech quality for public telephone service. Mobile Control Stations(MCS) and Automobile Switching Centers (AMC) are shared with the automobile telephone system to reduce the system s construction costs.

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Available abstract

NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT) has developed an aeronautical telephone system, which will be commercially available in 1986. This system operates on the 800-MHz frequency band, and with six base stations, covers almost all domestic air routes in Japan. Futhermore, it utilizes Phase Modulation(PM) to satisfy the required speech quality for public telephone service. Mobile Control Stations(MCS) and Automobile Switching Centers (AMC) are shared with the automobile telephone system to reduce the system s construction costs.

Key concepts: Mobile radio telephone, Mobile telephone, Telecommunications, Telephone network, Telephony, Base station, Service (business), Telephone exchange

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