54 STAT.] INTER-AMERICAN-RADIO COMMUNICATIONS-DEO. 13, 1937 f) That the Administrations recommend that the bands from 7000 to 7300 Kc/s and 14000 to 14400 Kc/s should not be used for short distance communications between amateur stations. 3. That frequencies included between 3500 to 4000, 7000 to 7300 and 14000 to 14400 be available for allocation in accordance with the following table: 3500 to 3800 Kc/s. for A-1 only. 3800 to 4000 Kc/s. for A-1 and A-3. 7000 to 7050 Kc/s. for A-1 only. 7050 to 7150 Kc/s. for A-1 and A-3 (A-3 for Latin-America only). 7150 to 7300 Kc/s. for A-1 only. 14000 to 14100 Kc/s. for A-1 only. 14100 to 14300 Kc/s. for A-1 and A-3. 14300 to 14400 Kc/s. for A-1 only. Emission type A-1 may be used in the entire frequency band com- prised between 14000 and 14400 Kc/s. The Latin-American countries, Canada and Newfoundland may use type A-3 in the frequencies comprised between 14100 and 14300 Kc/s. The United States will operate with emission type A-3 on frequencies 14150 to 14250 Kc/s., at least until December 31, 1939. 4. The bands from 1750 to 2050 Kc/s 3500 to 4000 Kc/s 7000 to 7300 Kc/s 14000 to 14400 Kc/s 28000 to 30000 Kc/s 56000 to 60000 Kc/s shall be amateur bands. 5. In order to make a better use of the 14 megacycle band insofar as radiotelephone communication is concerned, and to avoid at the same time any undue congestion which may be caused by the operation of beginners not familiar with the use of high frequencies, it is recom- mended that an adequate probationary period in which to acquire the necessary experience, as well as a technical and practical test, be required before an amateur will be granted a license to operate on the 14 megacycle band for radiotelephony. 6. The amateurs bands lately assigned shall not be used for any type of broadcasting fixed or mobile service. SECTION 9. AMATEUR THIRD PARTY MESSAGES. Whereas the General Radio Regulations annexed to the Interna- ma"Urrd tional Telecommunication Convention of Madrid provide that unless p a:. 24 M 'n modified by special arrangements between interested countries amateur stations are forbidden to transmit international communica- tions emanating from third persons; and 2529
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