1309/1: RADIOTELEPHONE SERVICE BETWEEN THE UNITED STATES AND JAPAN

GENERAL HEADQUARTERS
SUPREME COMMANDER FOR THE ALLIED POWERS

APO 500
1 August 1947

AG 311.3 (1 Aug 47) CCS
(SCAPIN-1309/1)

MEMORANDUM FOR	JAPANESE GOVERNMENT.
THROUGH	Central Liaison Office, Tokyo.
SUBJECT	Radiotelephone Service Between the United States and Japan.

1. Reference is made to:
a. Memorandum for the Japanese Government, file AG 311.3 (8 Jan 46) CCS, subject: Establishment of Telephone Service Between the United States and Tokyo, dated 8 January 1946, (SCAPIN 566).
b. Memorandum for the Japanese Government, file AG 311.3 (1 Aug 46) CCS, subject, same as above, dated 1 August 1946, (SCAPIN 1096).
c. Memorandum for the Japanese Government, file AG 311.3 (2 Nov 46) CCS, subject: Radiotelephone Service Between the United States and Japan, dated 2 November 1946, (SCAPIN 1309).
2. In addition to service being provided from the Tokyo-Yokohama area in accordance with reference paragraph 1c, the Ministry of Communications will arrange to extend transpacific telephone service to Osaka, Kyoto, Kobe, Nagoya and Sendai, and such other places as may be determined later.
3. This service will be extended to Osaka immediately and to other points when directed in correspondence between Civil Communications Section, General Headquarters, Supreme Commander for the Allied Powers, and the Ministry of Communications. Appendix I, attached to this Memorandum, outlines the tentative schedule and arrangements that will be made when the service is extended.
4. Calls may be placed by United States military and accredited civilian personnel only and will be made from telephones designated by the United States Occupation Forces for this purpose. Operating and accounting procedures in connection with transpacific telephone service now being furnished in Tokyo and Yokohama will be followed in the additional branch overseas offices established in accordance with this Memorandum.
5. The Ministry of Communications will furnish personnel, lines and equipment necessary to provide this service.
6. Direct communications between the Civil Communications Section, General Headquarters, Supreme Commander for the Allied Powers and the Ministry of Communications, regarding the operations of the transpacific radiotelephone service, within the scope of this memorandum, are authorized.

FOR THE SUPREME COMMANDER:

R.M. LEVY,
Colonel, AGD,
Adjutant General.

APPNDIX I
SCAPIN - 1309/1
1． This Appendix outlines initial arrangements and schedules for the extension of transpacific radiotelephone service. Plans contained herein are subject to revision by direct correspondence between Civil Communications Section, General Headquarters, Supreme Commander for the Allied Powers, and the Military of Communications. It is desired that this service be established not later than 15 August 1947.
2． Scheduled circuit hours available on the transpacific radiotelephone circuit with presently assigned frequencies will be as follows:
a. Channel A - 0800 to 2400 hours daily.
b. Channel B - 0800 to 1400 hours daily and available beyond 1400 hours daily subject to the useful propagation of 15, 860 kc and 18,910 kc. The 7,730 kc frequency is not authorized for single side band operation and the 11970 kc frequency is not authorized for use in Japan after 1400 hours.
3. Based on the above schedule, the available circuit hours will be apportioned between the main and branch overseas telephone offices in Japan as follows:
Office Hours
Tokyo 0800 - 1800 hours daily
Yokohama 0800 - 1200 hours daily
Osaka 1800 - 2400 hours daily
4. Although talking circuit time will be limited to the hours indicated, the offices will remain open until current business is completed. The Tokyo main office will be required to operate a teletype order wire circuit until 2400 hours daily. Any time available on Channel B after 1200 hours may be utilized by Tokyo.
5. Osaka will be the control center for calls that may later be placed from nearby points such as Kobe. Applications filed through this control center will passed to the Tokyo main office by teletype. Osaka will maintain a telephone switchboard of capacity to handle at least 7 telephone circuits immediately with provision for expansion to 20 circuits as need arises for further extension of transpacific telephone service in the Osaka sub-area. This switchboard will be arranged to provide a terminal and through termination of circuits as is now planned for installation at Occupation Force centralized toll centers. Calls filed at points within the Osaka sub-area which are not completed for any reason in the period allotted to Osaka will be cancelled. A new application for filing a call will be made in such cases where the applicant so desires.
6. The Ministry of Communications will furnish two stable telephone circuits between the overseas switchboard at Osaka and the overseas switchboard in Tokyo. One of these circuits will normally be used for the overseas telephone conversations and the second will be used as an order wire and spare. These circuits need be set up only during the period 1745 - 0015 daily.
7. The Eighth Army will provide one teletype circuit between the overseas terminal room in Osaka and the overseas terminal room in Tokyo together with teletypewriters to be used for scheduling and controlling radiotelephone calls.
8. The rate for transpacific telephone calls placed from Osaka, Kobe, Kyoto, Nagoya and Sendai will be the same as that for transpacific calls placed from Tokyo.

GENERAL HEADQUARTERS
SUPREME COMMANDER FOR THE ALLIED POWERS
APO 500
1 August 1947
MEMORANDUM
SUBJECT : Information of General Application Pertaining to Directive Number (SCAPIN 1309/1), file AG 311.3(1 Aug 47) CCS, this Headquarters, dated 1 August 1947, subject: Radiotelephone Service Between the United States and Japan
1. With reference to subject memorandum, the following is published for the information of all concerned.
2. In December 1946, a branch overseas telephone office was established at Yokohama, on a circuit time-sharing basis with the Tokyo office. In the interest of expanding the transpacific telephone service to make calls possible from other areas where Occupation Forces are concentrated, the hour of operation are now being extended from 0800 to 2400. Osaka will hereafter be accommodated, in addition to Tokyo and Yokohama, with the total number of available circuit hours divided between the three offices.
3. Existing general rules and regulations appertaining to the use of the transpacific radiotelephone service apply to the expanded service without change.
R. G. HERSEY
Lt. Col. AGD,
Asst Adj Gen.
DISTRIBUTION:
Same as SCAPIN 1309/1
less Japanese Government.

SCAPIN-1309/1: RADIOTELEPHONE SERVICE BETWEEN THE UNITED STATES AND JAPAN

参考原資料

Amended by

『日本管理法令研究』