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Although now thoroughly tested for accuracy by many police agencies, radar and laser guns and their operators still make mistakes. It is estimated that over 25% of all radar tickets are in error. The most noticeable and common mistakes include shadowing, RFI interference, cosine error and mechanical interference.
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www.radarbusters.com/mistakesarticle.cfm
www.radarbusters.com/mistakesarticle.cfm
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The national Bureau of Standards tested the six radar units most often used by police departments. All of them produced signals that were false from police radios or CD units. All of the units produced panning errors, when used either inside or outside the police cars.
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www.speedingtickethelp.info/information/9-radar-unit-ac...
www.speedingtickethelp.info/information/9-radar-unit-accuracy.shtml
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Radar manufacturers normally certify their units to plus or minus one mile per hour and most radars have some form of built in testing devices that verify the radar's accuracy. Radars usually come from the manufacturer with external testing devices such as tuning forks that the officer can use to verify accuracy.
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members.cox.net/reconokc/radar.html
members.cox.net/reconokc/radar.html
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Furthermore, most police radars are equipped with an instant on feature. The officer will activate a radar whenever he identifies ... Radars should be checked for accuracy occasionally. Under Georgia law, the officer has to check it at the beginning and end of each shift. The check for accuracy consists of the following:
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www.pbelectronics.com/police_radar.htm
www.pbelectronics.com/police_radar.htm
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These radars operated from a stationary position only and measured receding as well as approaching targets to an accuracy of about ± 2 mph. The maximum detection range was an unimpressive 150 to 500 feet (45 to 150 meters); ... Police Traffic Radar Handbook; Chapt 1.1 -- Police Traffic Radars...
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www.copradar.com/preview/chapt1/ch1d1.html
www.copradar.com/preview/chapt1/ch1d1.html
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In moving radars the gun measures the difference between the speed of the police car and the vehicle being measured. You have a sight that you use on the hand helds and a measued location on the car mounted. ... Find similar questions: Police radars reliable...
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askville.amazon.com/Police-radars-reliable/AnswerViewer...
askville.amazon.com/Police-radars-reliable/AnswerViewer.do?requestId=4225659
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Radar guns need to be calibrated like everything else in the Police arsenal, that doesn't change the fact that they are still more accurate, thus the calibration, if accuracy wasn't an issue they wouldn't bother with the calibration now would they?
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forums.ubi.com/eve/forums/a/tpc/f/756105611/m/584100338...
forums.ubi.com/eve/forums/a/tpc/f/756105611/m/5841003382/p/2
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Police Traffic Laser ... Oh, no, Police radars! Why me?!? Why are police radar guns always pointed on my car? You think of buying a police radar detector to avoid paying after driving into police radar traps? Please read on... ... Then the police vehicle speed is subtracted from the total of the two thus giving the target speed.
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www.vienna.cc/networld/car_automobile/police_radars.htm
www.vienna.cc/networld/car_automobile/police_radars.htm
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Microwave traffic radars used in the United States are regulated by the Federal Communications Commission (FCC). The FCC specifics technical standards such as operating frequency, bandwidth, power density, etc. The FCC Rules do NOT cover the CALIBRATION of radar units, radar ACCURACY, ... Police know the uniform,
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www.copradar.com/preview/chapt7/ch7d2.html
www.copradar.com/preview/chapt7/ch7d2.html
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