Assistant Solicitor VALLANCE. We have been trying to get these printed for the State Department, and I have been told that it can be done in colors for us.

Senator DILL. Well, if it can be done for the State Department I do not see why it can not be done for us, but I had understood that our committee prints could not be furnished in colors.

The CHAIRMAN. I should think that the State Department could do the same thing that the Navy Department and the War Department say they can do. (See p. 344.)

Assistant Secretary CASTLE. All right, we will have that done.

(A statement containing information concerning the agreement and the text of the agreement reached between the representatives of the United States and Canada at a conference held at Ottawa beginning January 21, 1929, are here made a part of the record, as follows:)

DEPARTMENT OF STATE,
February 28, 1929.

The Secretary of State announced that the arrangement reached by the representatives of the United States and of Canada at the conference held at Ottawa beginning January 21, 1929, to discuss the allocation of short-wave radio channels on the North American Continent has been approved and the Canadian Government has been so notified.

The provisions of the arrangement take effect on March 1, 1929, and have been approved by the Canadian Government.

The general allocation of two-tenths per cent channels to services is as follows:

In connection with the general communication channels, the governments agree not to assign to stations within their respective jurisdiction any of such channels that may be allocated to other governments unless it can be accomplished without interference. However, each government has the right to assign any general communication channel to any radio station within its jurisdiction upon the sole condition that no interference with any service of another country will result therefrom.

The allocation of the 228 general communication channels to various nations is as follows:

In connection with the channels which are shared, it was agreed that this could be accomplished without interference and hence would be equivalent to an exclusive channel provided that the nations sharing them were separated geographically by a sufficient distance. Accordingly the apparent number of available two-tenths per cent channels has been increased from 639 to 704.

In a letter dated January 28, 1929, Mr. Alex Johnston, the chairman of the Canadian delegation, acknowledged the receipt of advice that 37 of the 190 common channels reserved under the proposed arrangement for aircraft, marine, and mobile services were already being used by stations in the United States operating in these services and stated that in making assignments to Canadian

services operating in these bands the requirements of the United States would be very carefully kept in mind and that every precaution would be taken to see that those existing stations were not interfered with in so far as Canadian services were concerned. Mr. Johnston added that although the Canadian Government had not made its permanent assignments in these mobile bands it would communicate with the licensing authority in the United States when such permanent assignments were under consideration and would request that similar precautions be taken in regard to the issuance of licenses with a view to avoiding interference with Canadian stations.

The following representatives participated in the Ottawa conference:

Canadian delegation: Mr. A. Johnston (chairman), Mr. L. Beaudry, Mr. C. P. Edwards, Maj. W. A. Steel, Mr. W. A. Rush, and Mr. J. W. Bain.

United States delegation: Judge E. O. Sykes (chairman), Mr. O. H. Caldwell, Mr. W. D. Terrell, Mr. F. L. Mayer, Dr. J. H. Dellinger, and Commander T. A. M. Craven.

Newfoundland: Mr. H. W. Le Messurier.

Cuba: Mr. L. Bethart, and Mr. Gabriel de la Campe.

AN ARRANGEMENT BETWEEN THE UNITED STATES, CANADA, CUBA, AND OTHER NORTH AMERICAN NATIONS RELATIVE TO THE ASSIGNMENT OF FREQUENCIES ON THE NORTH AMERICAN CONTINENT

(1) The sovereign right of all nations to the use of every radio channel is recognized.

Nevertheless, until technical development progresses to the stage where radio interference can be eliminated, it is agreed that special administrative arrangements are essential in order to promote standardization and to minimize radio interference.

(2) The Governments agree that each country shall be free to assign any frequency to any radio station within its jurisdiction upon the sole condition that no interference with any service of another country will result therefrom. (3) It is agreed that each Government shall use Appendix 1, attached hereto, as a general guide in allocating channels to the various services specified therein. (4) Channels are divided into two classes; (1) Common channels which are primarily assigned to particular services in all countries, and (2) general communication channels which are assigned for use in specific areas.

(5) With regard to the general communication channels, it is considered that at the present stage of the art, the use of radio channels below 3,500 kilocycles will not normally cause interference at distances greater than 1,000 miles and such channels may, therefore, be used with freedom from interference by stations separated by such distances. It is further recognized that stations operating on frequencies above 3,500 kilocycles may become sources of interference at distances in excess of 1,000 miles, particularly at night.

(6) The Governments agree to take advantage of the physical facts just explained, and, by suitable geographical distribution of these two classes of channels throughout North America and the West Indies, to make available for general communication services, the total number of channels set forth in appendix 2 attached hereto.

(7) Each government shall have the right to assign to stations under its jurisdiction, in the manner it deems best, such general communication channels as are allocated to that government under this agreement, as set forth in Appendix No. 2. The governments agree not to assign to stations within their respective jurisdiction any of the general communication channels allocated to other governments, unless it can be accomplished without causing interference.

(8) The marine calling frequency of 5,525 kilocycles shall be used until superseded by an international assignment.

(9) In addition to the frequencies assigned specially for experiments (1,604, 2,398 and 4,596 kilocycles) the governments agree that experimentation by particularly qualified experimenters, may be authorized on any other channel provided no interference is caused with established services, as provided in regulation No. 11 of the International Radio Convention of Washington, 1927.

(10) The governments agree to adopt a radio frequency standard based on the unit of time and to compare at least once every six months the actual radio frequency measuring standards.

(11) The governments agree to require all stations, other than mobile and amateur stations, under their jurisdiction, to tune their transmitters with an accuracy of 0.025 per cent, or better, of their national frequency standard.

(12) The governments agree to require all stations, likely to cause international interference, other than mobile and amateur stations, to maintain their frequency with an accuracy of 0.05 per cent, or better, at all times.

(13) For the purpose of this agreement a channel shall be regarded as a band of frequencies the width of which varies with its position in the range of frequencies under consideration, but which progresses numerically from the lower to the higher frequencies, as shown in the following table:

Frequency (kilocycles):

1,500 to 2,198_

2,200 to 3,313_

3,316 to 4,400. 4,405 to 5,490 –

5,495 to 6,000 _ _

Channel width (kilocycles)

4

6

8

10

15

(14) The Governments agree to adopt for the present in their national plan of allocation a separation of 0.2 per cent between radio frequency channels; and to permit stations under their respective jurisdiction to occupy the assigned frequency and the adjacent frequencies to the limit permitted by the frequency maintenance tolerances and necessitated by the type of emission the station may be authorized to use. For commercial telephony a band width of 6 kilocycles shall be permitted. For the persent, a 100-kilocycle band width shall be con

sidered standard for television.

(15) The Governments agree to require stations under their jurisdiction to use transmitters which are as free as practicable from all emissions (such as those due to harmonics, decrement, spacing waves, frequency modulation, key clicks, type of keying, mush, etc.) not essential to the type of communication carried on, and which would be detrimental to communication being carried on by stations in other countries.

(16) Appendices Nos. 1 and 2, together with the chart showing graphically the distribution of the frequencies, which are attached hereto, shall constitute a part of this agreement.

(17) This agreement shall go into effect on March 1, 1929, and shall remain in force until January 1, 1932, and thereafter for an indeterminate period and until one year from the day on which a denunciation thereof shall have been made by any one of the contracting parties.

APPENDIX No. 1

Allocation of channels to services (arranged in order of kilocycles)

The last channel in each group is assigned to the service indicated immediately abreast the group except as specially noted to the contrary.

1 The channel 1,600 kilocycles is assigned to mobile services.

The channels 1,604, 2,398, and 4,795 kilocycles are assigned to experimental services.

For details regarding general communication services, see Appendix II.

'Taking into account articles 5 and 6 of the agreement, this total is increased by 65, as shown in parentheses.

NOTE.-The grand total is obtained by adding on 65 channels made available through the applica of articles 5 and 6 of the agreement.

Senator KEAN. I should like to ask something more about this cable business: You must have the agreements and the ownership for instance, of the Mackay cables.

Assistant Secretary CASTLE. We have a part of that information, at least.

Senator KEAN. Mr. Chairman, don't you think it important that we have for the record a statement of what agreements the Mackay Co. has in foreign countries, and what agreements the Western Union Cable Co. has in foreign countries, and what agreements other cable companies have, not only with the Governments but also with the telephone lines and the radio companies?

1 Used by Newfoundland.