Page:United States Statutes at Large Volume 55 Part 2.djvu/154

 55 STAT.] NORTH AMERICAN-REGIONAL BROADCASTING-DEC. 13, 1937 APPENDIX III TABLE I ADJACENT CHANNEL INTERFERENCE Channel separation be- tween desired and un- desired stations. 10 kc 20 kc 30 kc Maximum ground wave field intensity of un- desired station. 0.25 mv/m 5.0 mv/m 25.0 mv/m The undesired ground wave signal shall be measured at or within the 0.5 mv/m ground wave contour of the desired station. These values apply to all classes of stations both day and night and are based on ground waves only. No adjacent channel interference is considered on the basis of an interfering sky wave. 1025

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