Heinl radio business letter (July-Dec 1930)

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INTERNATIONAL INTERFERENCE FEARED The rapid increase in the number of radio stations for trans-oceanic communication throughout the world is likely to cause serious international interference and greatly hamper the reception of the United States naval stations. Pointing out that more than 2,000 such stations are now being constructed for operation upon the limited high frequencies, a statement from the Navy Department declares that the problem can be coped with only by cooperation among the countries engaged in international radio communication, "It is further estimated by the Department that this condi¬ tion will become increasingly difficult during the next five years and that experience to date is but a small indication of difficulties to come" , the statement asserts. Because of this congestion, Capt. S. C. Hooper, Director of Naval Communications, has issued new instructions to the naval service, emphasizing the importance of immediately reporting any inter¬ ference with naval radio communication so "that appropriate action may be taken to clear the interference." X X X X X X HONDURAS STATION DEVELOPS WIDE RANGE A booklet "Melodies of the Tropics.*" has been issued by the Tropical Radio Telegraph Company, of Boston, describing the accomplishments of its broadcast station "HRB." Commercial time is sold by the station which is located in the heart of Central America at Tegucigalpa, Honduras. A radius of 5,000 miles covering Central America, Mexico, Cuba, Jamaica, the United States, Canada, South America, and even parts of Europe is claimed. The facilities are offered to advertisers to increase sales in Latin American countries. Proof of "HRB*S" wide range is shown by letters in the booklet received from Lockport, N. Y. , Budapest, Hungary, Kansas City, Kans. , Providence, R. I., Cleveland, 0., Oakland, Calif., Philadel¬ phia, Pa. , and Seattle, Wash. Also from Cuba, El Salvador, Costa Rica, Nicaragua, Panama and Mexico. Copies of this booklet may be obtained by addressing the Tropical Radio Telegraph Company at 1 Federal Street, Boston, Mass, X X X X X X 4