clubaddict

anyone have experience with radar/laser jammers?
from a few sites Ive visited, these two seemed to have the best reviews.

Scorpion Ultimate Ka (x, k, ka bands)
seen on
activejammers.com

laser blinder m-20 / m-40 (laser)
seen on
radarjammer.com
radarbusters.com

ive also seen this headlight coating called "VEIL" thats used along with laser jammers...
http://radarbusters.com/products/coatings/veil.asp

clubaddict

ive also read that anything from rocky mountain radar is totally garbage..

IS0LD0UT

iTrader: (1)

I saw the laser blinker at SEMA this past year. The videos they were showing made it look like it actually worked. I have been wanting to purchase one for myself.

Vette Boy

A real radar jammer would be violating so many FCC rules, there's no way you could sell it. I've seen plans for working radar jammers back in the early 80's, they were a real heath hazard, hunderds of RF watts in the microwave region isn't good for the family jewels, if you know what I mean.

Anyone claiming they are selling a jammer, laser or radar, is running a scam.

Patsfan

As much as this sounds good, as long as this guy is selling a product on his website, I don't know how much he can be trusted.

Plus it sounds really corny, like some guy that goes around to middle schools. He calls himself "Radar Roy"

"Hey kids we have a special guest for you today, his name is Radar Roy, and he is going to tell you how to drive really fast and never get caught!! Everyone give a big welcome to Radar Roy"


If you are pumping out a certain product there must be some bias towards them.

You need 100% independent tests with no one getting kickbacks

clubaddict

yea it does seem slightly biased esp since he says you can order the "radar jammer" from his friends site since its illegal..and he doesnt sell it... and if you mention his name you get $100 off...

morris

iTrader: (2)

Laser Jammers like the M20 are genuine and work, they are very effective. Radar Jammers do not work period.

Radar roy by the way is a respected authority in the field. He routinely sponsors and conducts extensive testing on different radar detecotrs and laser jammers.

You can check out www.radardetector.net for mor information

Vette Boy

Automotive rader jammers have always been a scam, but rader jamming does work, the US Air Force has been using these since the 1950's. Also, commercial radar jammers are specifically illegal by FCC code.

Is this the guy in Colorado that sold non-working radar jammers for years? I would love to see a real test that shows it working.

BTW, Mythbuster busted someone's IR (InfraRed light wavelength) Laser Jammers.

There are two ways to jam an IR front enf. The newest way to jam an IR front end is a focused beam of laser light aimed at the missile's guidance system. A working automotive laser jammer would have to focus the IR energy into the LIDAR's IR detector's front end. Since LIDAR range is hunderds of feet, the jammer would have to detect the light, then shoot a focused IF energy into the LIDAR front end (requiring a very complex electronic system). Northrup makes something like this, they are trying to sell them to the US airlines, price is $1M per plane.

The other option is to just spray IR energy from a point source and generate a sphere of IR energy (that's what the this guy's IR jammer does). This is much lower cost, but with a big limitation. From 100 feet away, the amount of energy required at the point source would be hundereds of watts, the highest power IR LEDs I've seen are in the 3W range, just imagine how much more energy required to defeat the detector's front end from 1000 ft (100x the energy required to jam the front end at 100ft).

An example of a working, long range, point source IR jammer are the flares that Air Force planes shoot behind the plane to overwhelm the missle's IR front end. The flares dissipate thousands of IR watts energy (very hot!). If the IR source was on the plane, it'll melt the plane. Same holds true for an automotive type.

I highly doubt these things do anything but lighten one's wallets.

morris

iTrader: (2)

Well if you wont belive me will you belive Motortrend?

edit... I didnt realize we were talking about missle guidance systems and such, I stand corrected enemy radar can be jammed.
But you still cannot Jam police radar with currently legally availble products.

http://www.motortrend.com/features/c...de/index4.html


Even the well known companies like Bel and Escort make laser jammers



In this year’s tests, the Laser Pro 905 and ZR3 effectively jammed laser 86 percent of the time. Both BEL and Escort include professional installation as part of the practice and have a nationwide network of installers in place to provide this service.



A second solution comes from Blinder X-treme, which offers two units, the M-20 X-treme (front only, $349.95) and the M-40 X-treme (front and rear, $599.95) with installation priced separately (typically $100 for the M-20, $150 for the M-40). This is the Ferrari Enzo of laser jamming devices, effectively neutering police laser an incredible 92 percent of the time. As it is a standalone product, it can be matched up with any radar/laser detector.

morris

iTrader: (2)

And no Roy is not the guy that sold non working radar jammers, I'm pretty sure you are reffering to rocky mountain

Vette Boy

I am always suspious of MT, they seem to recommend products from their advertisers, they are not an impartial source.

Here's some data in table form from Fos (MT's source for this portion of the article you reference):
http://www.speedzones.com/counter.html

It looks impressive until I read things like:
"Officers are also trained to aim at the headlight if they do not get a speed reading when aiming at the vehicle’s front license plate. "

"At 500 feet the beam measures a mere 9” in radius. This small beam is very difficult to detect and jam at the 500 foot distance especially for a laser jammer attached only to the front license plate."

It appears that the only good results were when conditions were perfect and the LIDAR is aimed directly at the jammer, it's easily defeated by simply aiming the LIDAR unit at the headlight.

Vette Boy

I found the patent for the jammer:
http://patft.uspto.gov/netacgi/nph-P...&RS=PN/6833910

It's works different than I thought, what I wrote is covered in (above ripped that from the first patent I referenced)

It is clear from the first patent I referneced that for the jammer to work, the LIDAR has to be aimed directly at the jammer:

So when Fos says:
"laser gun transmissions are very narrow and detectors have a difficult, if not impossible task..."

"There are seventeen states with only a rear license plate and officers are trained to aim at the headlight in these states. Officers are also trained to aim at the headlight if they do not get a speed reading when aiming at the vehicle’s front license plate. "

"At 500 feet the beam measures a mere 9” in radius. This small beam is very difficult to detect and jam at the 500 foot distance especially for a laser jammer attached only to the front license plate. "

It's clear that the jammer only works when the LIDAR hits the detector and the IR LED is driven with the patented circuit. If the cop aims the LIDAR at your car's painted surfaces or headlight the jammer will not see the LIDAR's laser and never respond.

morris

iTrader: (2)

Hey not to get in to a pissing contest, all I can tell you is that there are many many independent tests of these systems on the Internet, they all say the same thing, that is that they work very well.

Reputable companies such as Beltronics and Escort sell and market the systems and with great success. Well known print magazines have reveiewed them and also say that they work. I guess you can choose to believe the professionals and laypersons that have used the product and say that they work or you can go with your own speculation on what you think it does or doesnt do.


I'm just saying that you are speculating when you have never seen the product, used the productt or apparently done any level of research on the actual products.

But hey we are all entitled to our own opinion, but sometiems you have to accept the empirical data, even though we may not understand it.

Vette Boy

Not a pissing match, just researching what has been said and attempting to determine what's true. The original question was, does it work, it's clear the answer is, not really. I found the source that MT used in the article you cited as proof that a LIDAR jammer is effective. The researcher makes it clear the jammer effectiveness is very limited. IMHO, MT is very dishonest when it misrepresents the effectiveness of the product by selectively quoting the source. It's interesting that the unit they claims works best is a major advertiser. IMHO, that's nothing new with auto rags from Hot Rod to Fast Hondas, MT is no worse or better than the rest of the harlots. If you have any other web sites that cite "independant tests' please cite them.

Did you buy one of these?

Vette Boy

http://www.radardetector.net/Blinder...S400-7108t.php

never mind