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NEW FREQUENCY REGULATION IMPROVES RECEPTION
One month after its strict frequencymaintenance regula¬ tion went into effect, the Federal Radio Commission has determined that stations are reaching the largest audience in the history of broadcasting.
The maintenance order, which requires that broadcasting stations keep within a frequency 50 cycles above or below their assigned channels, and which became effective June 22nd, has resulted in universal reduction of interference and increase of service area for nearly all stations, it was explained,
William D. Terrell, Chief of the Commission's new Divi¬ sion of Field Operations, reports that stations throughout the country have cooperated in maintaining their assigned channels, and that very few stations have failed to comply with the new regulation.
Engineers of the Commission, after preliminary tests of the effectiveness of the new ruling, have determined that the service area of most stations has been substantially increased, and that objectionable interference has been reduced to a point where it hinders good reception less than ever before.
Summer months, during which hot weather somewhat restrio broadcasting efficiency, are constantly becoming less feared by broadcasters. During the period from June 22 to July 22, hot weather influenced broadcasting less than during the corresponding period of any preceding year, because of the new order. While stations now may not be reaching quite so many persons as last Winter, considering weather conditions, they are reaching propor¬ tionately more listeners than during the cold season of any previous year.
Especially has the new ruling aided small local outlets. Stations of low power found that since all adjacent b roadcasters are maintaining their frequencies, programs are being received without interference nearly twice as far in all directions from the transmitter as they were this time last year. The Commission has made definite tests on Station WOL, Washington, D. C. , operat¬ ing with 100 watts and has found that where before the order went into effect, the station could reach only about four miles without interference, it now serves listeners without interference at a distance of nearly 10 miles from the transmitter.
Thus, for many stations, the service area has been doubled. The greatest reduction in interference has come about by almost complete elimination of heterodyne whistles, which made reception bad for nearly all low-power stations.
Advertisers, paying the same rates to s tations that they did when a 500-cycle deviation was allowed, are getting more for their money now than before, and are more assured that their mes¬ sages reach listeners clearly and without distortion.
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