Radar detectors work by using the same Doppler radio wave technology your local meteorologist uses to forecast the weather. Radio waves are fired at you vehicle and then bounce back and tell the radar gun operator how fast you are going. Your radar detector is scanning for these Doppler radio waves and alerts you when they are located.
So now you have a radar detector and you can relax. But Wait! In certain areas of the USA and Canada radar detectors are illegal. Police in these areas are using RDD, (radar detector detector). This technology is either VG-2 and Spectre.
So you need to be aware of this when purchasing your detector is you live or travel through an area where radar detectors are illegal.
Some detectors will warns you and then shuts down when an RDD is detected. More expensive detectors may be shielded from VG-2, or Spectre, or both, so they will keep operating without being discovered.
Another feature that is good to have, is “City Mode”. City Mode reduces the range of the detector, so you don’t get a lot of false alarms from X-band signals. New cars today have many sensors, such as automatic door locks, that operate on the same radar band police use. So you don’t want to be alerted by every new car you pass. This is one complaint people have with inexpensive radar detectors.
Your mounting preference is another consideration when purchasing your detector. A windshield mounted corded detector usually provides the best range, but it visible to everyone. If you are going to be using your detector in
several different vehicles a cordless detector is the way to go. If you are concerned about theft, a permanently out of sight remote mounted detector should be your first choice.
Two of my favorite radar detectors
Escort Passport MAX 2 and the Cobra RAD 450
Lasers account for about 20% (26,0000 of all the speeding tickets issued every day. If you receive a speeding ticket and it says “Lidar”, or the officer tells you you were clocked using a “Lidar Detector or Police Lidar”, that’s a laser speed detector. Lidar is the police term for laser.
Lasers use a different technology then radar detectors. While radar detectors use radio waves, lasers use a light beam (infrared IR light) that is directed at your vehicle and then reflected back to the laser speed detector. This beam of light is invisible to the naked eye and your speed is usually detected long before you see the police vehicle. With lasers the police have the advantage. Due to their longer range lasers are much harder to detect then radar and as a result your reaction time to slow down is reduced dramatically. Here’s where a top performing laser detector can shift the advantage slightly in your favor.
Two top performing laser detectors are the Cobra DSP 9200 BT and the Escort Max 360.
As far as being legal, laser detectors fall into the same category as radar detectors, so if one is illegal, so is the other.
When shopping for a laser detector, here are a few things to consider.
Number of sensors. A one sensor detector can detect laser beams in front of you, but not on the sides or rear. A 360 degree detector will give you full coverage, front, back and sides. Voice alerts will keep you from taking your eyes off the road. ‘Instant On” is a little tricky. By the time your detector clicks on, you have already been tagged. If another car in you vicinity is tagged, “Instant On” may help you in that situation.
Do laser detectors and radar detectors work?
Radar detectors work. Laser detectors by themselves are just an advanced notice of a speeding ticket. With a laser detector you will need the technology that can absorb the IR Beam. Google “Veil” for details.
The bottom line is Radar and Laser Detectors will keep you from getting a speeding ticket in certain situations. But the best defense is to obey your local speed limits.