How Radar Detector Works ?

It is undeniable that over-speeding is a fact that is common in driving, and most drivers are guilty of the offense. Most drivers are comfortable with the idea of excessive speed so much that they do this unconsciously.

The fear of speed tickets and getting caught has led to the invention of specialized electronic devices called Radar Detectors that can help you avoid police radar/speed guns.

In this article, we will explain what are radar detectors and how do they work. We will also talk about Police radars and speed guns and see what police has been doing to enforce driving safety.

What Are Police Radar Guns?

Police Radar - Speed Gun

For understanding how the radar detector works, we need to first understand how Police measure your speed using speed guns. Most police use Doppler radar gun which can be easily described as a receiving and broadcasting device used to determine the speed of an object.

Police radar sends radio waves at your vehicle that bounce back the moment they strike your car. The waves that bounce back when they strike an object are called ECHO which is usually analyzed by the device. The use of radar gun helps in detecting a vehicle’s speed by determining the nature of the echo that bounces back from an object.

The working principle of a police radar gun is based on the fact that radio waves travel through the air at a constant speed. This makes it possible for a radar/laser gun to quickly calculate how far an object is based on the time taken for the radio signal to return.

For example, when a vehicle is in motion, there is usually a change in the radio waves frequency and radar/speed gun detects this change and determines the target speed by converting it into miles per hour. Radar guns use 3 different kinds of bands to determine the speed of the target which includes K band, X band, and Ka bands.

Advancement In Police Radar

Police Radar guns are not particularly efficient at determining a single vehicle’s speed in presence of many vehicles. Police radar transmissions are quite wide in their dispersion patterns and are often reflected in many directions. This gives a radar detector a lot of opportunities to detect the radar transmission and as a consequence generally provides the driver ample reaction time to slow down while vehicles ahead are being targeted.

With laser guns, the officer can specifically fire the laser at your vehicle to accurately measure the speed. Since the laser is a highly focused beam of infrared light, it’s detection by other laser detector owners is very difficult. Police laser can be operated at greater distances than radar guns.

For years, police have long used radar/laser guns to track the speed of drivers and also to maintain safe driving conditions on the road. Meanwhile, most drivers using radar detectors have been able to avoid costly fines for over-speeding violation.

How To Avoid Radar Gun Speeding Tickets?

In order to avoid speed tickets, you need to buy the best radar detector for your car to avoid fines from police radar/laser guns.

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How Does Radar Detector work?

A radar detector, like the kind you might have on your dashboard, is simply scanning for those same radio frequencies within the same Doppler bands as those of Police radar guns. Ideally, your detector goes off and warns you so you can slow down before they get a good reading on you.

If everything regarding over speeding and ticketing had just stopped here, everything would have been more straightforward. But in the actual sense, if over-speeding drivers would end up getting away with over-speeding fines then speed-limits would have been worthless.

Therefore, to get around the detectors, the detectors became more clever which led to RDDs(Radar Detector Detector – Devices to detect if a driver was using radar detector or not). Consequently, the radar detector also became much better on the driver’s side which was able to pick up signals that were sent out for a short period and detect RDDs.

For laser guns, speeders sometimes also use laser jammers which has a light-sensitive panel and built-in light emitting diodes (LEDs) that produce a light beam to confuse the receiver of any reflected light to avoid speed reading.

It’s imperative to say that none of the radar detectors offer 100% safety and the law still might catch you for over-speeding. These devices are designed to make you aware of your speed limits for your safety.

CONCLUSION

Buying a radar detector is as important as having an in-depth understanding of its working principles as this helps in good decision making so that you can choose the best of the radar detectors that can provide excellent service & satisfaction.