Radar speed meter described operates on Doppler principle and is powered by vehicular battery system or 120 v a-c; provisions are made for diffierentiating between slow and fast moving vehicles and for insuring that only signals of adequate strength are detected.
Radar meter helps enforce traffic laws
Electronics
Electronics ; 32 , n 10
1959
2 pages
Aufsatz (Zeitschrift)
Englisch
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