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Vol. I No. 3
July, 1922
The March of Radio
REPORT OF THE RADIO TELEPHONE COMMITTEE
AVERY important step was taken in the progress of radio telephone development when the committee, called by Secretary Hoover, handed in their final report, containing recommendations as to the proper allocation of wave lengths for the different radio telephone services now existing, or anticipated. The committee, under the leadership of Dr. S. W. Stratton, the Director of the Bureau of Standards, was made up of experts from all branches of radio activity — the military and civil services of the Government, commerical radio engineers, college professors, and representatives of the amateurs, all combined to work out what seemed to be a reasonable division of the frequencies available for radio traffic.
The recommended assignment of wave lengths was as follows — Transoceanic experiments, non-exclusive, 5000-6000 meters; Fixed service, 2850-3300; Mobile service, nonexclusive, 2500-2650; Government broadcasting, non-exclusive, 1850-2050; Fixed station, non-exclusive, 1 550-1650; Aircraft radio telephone and telegraph, exclusive, 1 500-1 550; Government and public broadcasting, nonexclusive, 1 0501 500; Radio beacons, exclusive, 950-1050; Aircraft radio telephone and telegraph, exclusive, 850-950; Radio compass service, exclusive, 750-850; Government and public broadcasting, 200 miles or more from the sea coast, exclusive, 700-750; Government and
public broadcasting, 400 miles or more from the sea coast, exclusive, 650-700; Marine radio telephony, non-exclusive, 525-650; Marine telegraphy, exclusive, 525-650; Aircraft radio telephony and telegraphy, exclusive, 500-525; Government and public broadcasting, exclusive, 485-495; Private and toll broadcasting, 285-485; Restricted special amateur radio telegraphy, non-exclusive, 310; City and State public safety broadcasting, exclusive, 275-285; Technical and training schools (shared with amateurs) 200-275; Amateur telegraphy and telephony, exclusive, 150-200 meters (this makes the total wavelength range assigned to amateurs 150-275, part of it being shared with the technical schools); Private and toll broadcasting, exclusive, 100-150; Reserved, all below 100 meters.
Of course we are principally interested in the wavelengths to be used for broadcasting. Government broadcasting is defined as that done by departments of the Federal Government; public broadcasting as that carried on by public institutions, such as Universities; presumably church broadcasting will come under this classification. Private broadcasting signifies that carried on, without charge, by any communication company, newspaper, etc. Such broadcasting, if charge is made, comes under the classification of toll broadcasting.
In view of the interest of the public, as a whole, in broadcasting, it was strongly urged that point-to-point radio communication be