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A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement , and in professional sports to measure speeds such as those of baseball pitches , [ 1 ] tennis serves , and ...
Gatsometer claims to have developed the first radar for use with road traffic in 1971, but this claim is undermined by evidence that radar detectors were already for sale in 1967. [13] Gatsometer BV produced the world's first mobile speed traffic camera in 1982.
A radar detector is an electronic device used by motorists to detect if their speed is being monitored by police or law enforcement using a radar gun. Most radar detectors are used so the driver can reduce the car's speed before being ticketed for speeding .
The radar speed gun was invented by Bryce K. Brown of Decatur Electronics in March 1954,[2] and was first used in Chicago, Illinois in April 1954.[citation needed] Patrolman Leonard Baldy was the first officer to issue a speeding ticket using the new device.
Jeremy Dunn (Laser Technology Inc.) developed a police lidar device in 1989, [3] and in 2004 10% of U.S. sales of traffic enforcement devices were lidar rising to 30% in 2006, [1] given the advantages of lidar it appears likely that the majority of current sales are lidar, although sophisticated radar units are still being sold.
Pocket Radar utilizes very similar microwave signal emission and detection methods found in the Doppler speed radar guns used by law enforcement agencies. The device measures 4.7 by 2.3 inches (119 by 58 mm) and weighs 4.5 ounces (130 g) when equipped with two AAA batteries. It operates at the 24.125 GHz K-Band frequency and can measure speeds ...
U.S. Senator Elizabeth Warren and other Democratic lawmakers renewed calls for financial regulators to direct the use of a payment code for firearms retailers, citing conflicting new state laws on ...
AN/APG-15 S band tail gun aiming radar for Boeing B-29B Superfortress and Consolidated PB4Y Privateer; AN/APG-16 improved AN/APG-2 gun aiming radar for B-32. AN/APG-17 improved AN/APG-4 L band low altitude torpedo release / aiming radar and bombing radar; AN/APG-18 X band gun aiming radar by Glenn L. Martin Company for turret guns, improved AN ...