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When a police officer uses radar for speed control the officer is using what kind of electromagnetic waves?
Wiki User
∙ 14y ago
radio waves
Wiki User
∙ 14y ago
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What device do police use to measure speed?
Doppler radar
What is the smallest object radar can pick up?
The smallest object most radar can pickup is a bird. Radar used by air traffic control and civilians is less accurate than that of the military.
Does Police radar work at night?
Yes!!! Radar uses its own emitter. To the receiver it is always night until the transmitter is tuned on. Turning on the transmitter is like turning on a flashlight.
Why can't radar be used under water?
Radar is the use of a transmitted electromagnetic pulse and the evaluation of reflections to determine what is in the signal's field. Sea water conducts electricity pretty well, and anything that conducts electricity like that will absorb the electromagnetic energy of the radar (as well as reflect some of it) and not allow it to penetrate it to an significant degree. It would be like trying to see through the densest fog you've ever been in at night while using a flashlight. Almost nothing more than a couple of feet away will be visible. The dielectric constant of water is not good for RF propagating but Air is. Air has a very good dielectric constant of RF properagation, as does a vacuum. However water is good for propagating sound will although it propagates much slower the RF weaves, the distance that sound waves (which is a pressure waves) travel is vastly longer then Radio Waves (which is electromagnetic waves) would in water. For this reason SONAR is used for echo location in place of RADAR underwater, and it is worth noting that because SONAR waves propagate slower the radio waves a lot of Radar Techniques have already been proven on SONAR application before they are on RADAR one as the time base is slower. (Richard Rudd-Orthners)
How does a radar gun work?
the RADAR transmitter sends out a pulse of radio wavesthe radio waves bounce off objectsthe RADAR receiver picks up the reflected pulses of radio wavesthe round trip travel time is measured electronically or displayed on a 2D screenthe travel time tells how far away the objects areMost modern RADARs use radio waves in the microwave band but HF band, VHF band, and UHF band radio wave have also been used.Older RADARs use a mechanically rotated or wobbled dish antenna, but many newer RADARs use a stationary Electronically Phased Array flat plane antenna (this type of antenna is another topic just by itself).LIDARs work the same but use light wave pulses generated by LASERs instead of radio waves.A basic summary of how radar works is that a pulse is transmitted and any return or echo is listened for. If a return is sensed, the timing between the transmission and the reception of the echo is used to determine how far away an object is. There are some other ways in which radar works as well.Radar is something that is in use all around us, although it is normally invisible. Air traffic control uses radar to track planes both on the ground and in the air, and also to guide planes in for smooth landings. Police use radar to detect the speed of passing motorists. NASA uses radar to map the Earth and other planets, to track satellites and space debris and to help with things like docking and maneuvering. The military uses it to detect the enemy and to guide weapons.Radio pulses are transmitted from the antenna, reflect back off objects, and are received again by the same antenna. The time is measured from transmission to reception and used to calculate distances to the objects. In most systems the time measurement & distance calculation are a single implicit operation done directly in the display by calibrating it in distance not time units.
When a police officer uses radar speed for control the officer is using what kind of electromagnetic waves?
Radar uses radio waves.
When the police officer uses radar for speed control the officer is using what kind of electromagnetic waves?
radio waves
When police office officer use radar for speed control the officer is using what kind of electromagnetic wave?
radio waves
Can a Police Officer use a Radar Gun to clock speed of a car while the Police Officer is driving?
Of course they can all they have to do is hold the radar gun with one hand and the wheel with the other
Was Gary Burghoff a Cincinnati police man?
No, he played the Radar o'Reilly chacacter in a pilot episode for the show W*A*L*T*E*R, where radar was a police officer for the city of Cincinnati.
What electromagnetic radiation is used in police speed detectors?
Police hand-held radar speed detectors are microwave transceivers operating around 10.5 GHz.
Can a Police Officer use Radar to clock the speed of a car while the Police Officer is driving?
The answer is "yes." Traffic radar monitors both the speed of the vehicle in which is it mounted and the speed of "target" vehicles coming toward or moving away from it. On the radar display, the officer sees two speeds: "patrol" (the speed of his vehicle) and "target" (the speed of the vehicle the radar is tracking). the target speed measurement is equally accurate, whether the patrol vehicle is moving or not.
Can a police officer hide while using a radar in Louisiana?
As far as I know it isn't illegal anywhere for a police officer to hide, its not considered entrapment unless you're being tricked into doing something you wouldn't normally do. So yes, they can hide while using radar.
What has the author Asoke K Bhattacharyya written?
Asoke K. Bhattacharyya has written: 'Radar cross section analysis and control' -- subject(s): Radar, Radar targets, Radar cross sections, Antennas, Electromagnetic waves, Scattering
Can a police officer park on private property and use radar to check for speeding in New York?
no, unless of emergency
What is a police radar?
A radar that the police use to detect stuff.
How does the Escort Radar Detector work?
The Escort Radar Detector scans for the radio frequency waves of most police department speed guns. These speed gun frequencies can be detected for about a mile before actually seeing the police officer.
