Issn Print: 0195-9131
Publication Date: 1996/05/01
AN EVALUATION OF THE SR3200 SPORTS RADAR GUN 103
R. Godsen; B. Barfield; B. Frishberg; C. Godsen
Excerpt
Sports radar guns have been used for years to provide quick and reasonably accurate speed information in a variety of sport settings. The standard has been the JUGS Gun, a rugged albeit expensive instrument. Recently, Sports Radar, LTD has produced a series of inexpensive and versatile radar guns with an accuracy of ±1.0 miles/hour (their claim). It was the purpose of this study to evaluate one of them, the SR3200. One-hundred-twenty-two observations were made under conditions varying from careful laboratory analysis to basic field research. SR3200 speed values were compared to speed values obtained by standard measurement procedures (motion analysis, gravity drops, timing gates, validation comparison). The SR3200 performed reasonably well in some areas, but it fell well short of the 1.0 miles/hour (MPH) accuracy claim. The following table summarizes its performance.
In general, SR3200 error increased when object speed was below 25 MPH. Further, the use of reflective tape enhanced performance considerably vis-à-vis the JUGS Gun, although the use of reflective tape did not enhance estimation of running speed.
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