Radar Detector Jammers
We probably already know how radar detectors work - a conventional radar
detector can detect signals from police radar with a basic radio receiver. This
type of detector (which is the most common) is a totally passive device; all it
does is recognize the presence of radar signals.
Now days, more sophisticated types of detectors take a more active role in
evading the police. In addition to being fitted with the basic receiver, these
devices have a built in radio transmitter, which emits a "jamming" signal. What
it does is replicate the original signal coming from the police radar gun, and
mixes in additional radio noise, (commonly referred to as "white noise"). With
this added information, the radar receiver is fed with a confusing echo signal,
and the police won't be able to make an accurate speed reading.
Modern detectors may also have a light sensitive panel which detects the signals
from lidar guns. These "lidar guns" are more difficult to avoid than the
traditional radar because its beam is highly focused and doesn't reach very long
In which case, by the time a lidar detector recognizes the presence of the beam,
the car is probably already in the beam's sights, and makes it too late to slow
down. Some speeders attempt to get cheat this detecting technology by reducing
their car's reflectivity. A darkened surface supposedly reduces reflectivity due
to higher light absorption.
Drivers can also use special plastic coverings that may reduce the reflective
properties of their license plates. These measures supposedly reduce the
effective range of the police lidar gun, but do not lessen the range of the
driver's detector. This allows for more time for a speeder to ease up on the gas
before the lidar gun can get an accurate read on the vehicle's speed.
Prospective speeders also have the option of using a laser jammer. This jamming
device basically functions along the same principles as the radar jammer. In
addition to having a light-sensitive panel, the detector is fitted with light
emitting diodes (LEDs) that produce their own light beam. When this beam hits
the lidar system, the receiver won't be able to recognize any reflected light,
therefore, can't get an accurate speed reading.
It's important to note that none of these jamming devices are 100 percent error
proof; even if you have a top-of-the-line jamming and detection system, the
police may still catch you blazing through the road. Police also periodically
introduce newer speed-monitoring technology, your detector and jammer might
suddenly become outdated or outgunned.
In this case, the driver is opted to purchase more current versions of radar and
laser jammers just to keep up. It is advisable that when you pick a jammer, try
to choose the one you can best afford, the more expensive units often have the
best, and most current features.
On the other hand, there is always a surefire way to avoid being issued speeding
tickets, however advanced the technology the police have in their hands, and
that is to "slow down"!
In some areas where radar detectors or jammers are illegal, police may be
carrying devices called VG2. The VG2 unit is basically a high-powered radio
receiver tuned to detect the frequency of the specific signals emitted by radar
jammers and detectors. So while you think you're scanning the roadside for them,
they might also very well be scanning for you.