Radar Jammers: Can a radar jammer really beat police radar?


Radar Jammers

Can a radar jammer beat police radar?

Updated: 03-10-2015

Active radar jammers work on the principle of interfering with or overwhelming the doppler shifted returned frequencies that occur from reflected radar waves that police RADAR employ to obtain a vehicle’s speed.

Unlike police laser (at least in most states), police radar can not be legally jammed. In fact, any attempt to do so (whether one is successful or not and most active radar jammers are not) is a federal offense and violates FCC regulations. Late in 1997, the FCC also ruled that so-called passive-reflector type “radar scramblers” are also illegal to operate whether they are effective or not (they never habe been) because the FCC considers any attempt as “malicious interference” and as such no radar jammers.

While active radar jammers are most certainly illegal, they have proven to be mostly ineffective, especially against the latest digital RADAR guns.

Older analogue radar jammers did have some jamming effect on older analogue X-band and K-band RADAR but were often bulky, cumbersome to operate, and ran continuously – setting of every radar detector in the immediate vicinity. Their use ended up adversely effecting drivers in front of you hit their brakes and slow down which presented potential safety problems for drivers who used a radar jammer. 

One jammer that also showed some effectiveness was the Scorpion Radar Jammer.  We tested it years ago and found it to be somewhat effective against older X-band and K-band guns.  The Scorpion also had the distinction of only transmitting when you were being targeted and was also designed to jam Ka-band radar (a much harder band to do so), but we found that it was largely ineffective on that frequency.  The unit was also constructed like it was home-made (which it was) and it promptly failed on us completely, the electronics literally went up in smoke.

Furthermore, analogue radar jammers tend to lose calibration and eventually go out of tune – further diminishing their radar jamming effectiveness over time.

Today, advanced police radar guns can indicate to the officer that someone is attempting to interfere with them. They do so easily by monitoring the return RADAR frequency of the jammer during the time that the police radar gun doesn’t transmit – a dead giveaway of the user of an active radar jammer.

In some cases, a radar jammer may inadvertently produce a higher indicated speed on the officer’s radar gun! Can you picture trying to explain to a police officer how his 95mph reading of you was introduced by your jammer and not by your actual speed?

At any rate, police RADAR has progressed today to be primarily digital, which makes them much more accurate, less prone to error, and extremely difficult to jam effectively.

Don’t even think about attempting to use a “passive jammer” or to passively disable or “scramble” police RADAR as your vehicle’s own reflections will most certainly overwhelm any small “passive jammer/reflector” by several orders of magnitude. These devices don’t even make a good radar detector!

License plate covers to defeat photo radar and photo laser may be the only effective “passive” solution against automated traffic photo radar cameras. While your speed will still be determined, identification of your vehicle can be seriously hampered since your license plate is obscured.

Many years ago, our VEIL engineers attempted to formulate a RAM (R.A.D.A.R. absorptive material) coating that would operate as our stealth VEIL coating does to police laser. However, we found that it wasn’t practically feasible nor effective, as stealth technology (passive countermeasures) to radar is largely achieved by shape—think F-177A, B2, or F-22A. Contrary to these stealth jets—which are designed to reflect radar waves away from their source—our automotive vehicles make strong reflective targets! Oh well, at least we tried!

Our advice is to don’t waste your money and stick with one of the better radar detectors , VEIL, and drive attentively. The use of the latest crowd-sourcing smartphone apps such as the very popular WAZE is also mandatory, in our opinion.

Over the two decades, an even more ominous threat to the motoring public has emerged and unlike police radar, it is much more difficult to detect, the likelihood of successful court challenges to issued tickets is much smaller, and it is now in widespread use.

Your chances of getting a ticket are going up rapidly! Some police lasers are now equipped with cameras and some even have bluetooth capability to connect to networked computers located in police cruisers for the purposes of creating video evidence of any driving infractions.

Fortunately, we have devised an inexpensive police laser countermeasure to neutralize this even greater threat that is not only proven effective, but also not outlawed by the FCC.

If you are interested in knowing more about the threat of police lidar and the way to defeat it please refer to our very informative FAQ.

Veil Guy