Timing Races by Radio

Radio Record, Volume III, Issue 52, 11 July 1930, Unnumbered Page

Timing Races by Radio

Indisputable Accuracy A SPECIAL arrangement of radio and photo-electric apparatus for use in all time sporting events has been designed by an American radio engineer. He claims that his device provides an automatic and accurate photograph of the finish, an imperishable record of the time, and indisputable evidence as to place in close events. A light ray is focused -across the track at the finish point on a special photo-electric device that acts as 2 relay the moment a figure-runner, horse or cyclist-passes across the line. The impulse caused by the fleeting shadow is amplified and within onethousandth of a second actuates 2 camera which takes a picture of the scene, including the dial of a stopwatch set in motion at the beginning of the race. , The apparatus functions unfailingly under all light conditions, is light and portable, and is readily set wp on any track.