Radar/Laser detectors!

Does anyone use them?? How effective are they? Do they only detect it after the cop points the detector at you? I saw the a lot of them being used while watching gumball rally 3000, and became quite interested.

i have jus a standard detector...it works nicely (cept on lazer ones) the lazer ones don't give off any frequency til they pull the trigger at ur car, an then its too late. but...most of the lazer ones, actually break the lazer, an send back nothing to the radar meaning they don't kno how fast u are going...u can go pick up a cheap one for about 40 bucks from circuit city, an it'll pick up all radars within a certain radius, OR u can get a nice one (around 110++) an it'll only pick up certain frequencies that the good ol po's use now. its been a good investment...i mean if ur doin double the limit, no its not going to save u a lot of the time, but if ur chillin at 10 over, it'll give u PLENTY of warning to step on the brakes easily an not even be noticable that u are slowing down. really...go out an get a cheap one, it'll beep at a lot of things, but u'll figure out when it is a false alarm, an u'll be saved by it a few times. i've been saved by my $40 one about...10 times within a year. so its a good investment...hope i had added some insight.

yea there was noe guy on the gumballrally 3000 he had laser detectors radar detectors and jammers and a police scanner. But its not going to help if the cops are sitting at the side of the road and you pass them going 100+ they'll still know you're speeding

Originally posted by Monkey-Magic-S15-R
yea there was noe guy on the gumballrally 3000 he had laser detectors radar detectors and jammers and a police scanner. But its not going to help if the cops are sitting at the side of the road and you pass them going 100+ they'll still know you're speeding


Word. But they're just so coooool.

Originally posted by fatninja19



Word. But they're just so coooool.

Agreed. My parents are moving to Maryland in a week and a half and I'm going to reregister my car there and get one myself(they're legal in MD, illegal in VA):cool:

Well I have the Escort Passport 8500 (KICKS ASS!!!), and my dad just recently bought the BEL Express 936 because he was jealous of me ;)

anyway, yeah they work great, the passport and express give warning plenty ahead of time, and they got features up the ass


DEFINITELY WORTH THE MONEY FOR THESE TWO

PASSPORT 8500 - $299
Bel 936 Express - $150

Originally posted by crunchymilk49
Well I have the Escort Passport 8500 (KICKS ASS!!!), and my dad just recently bought the BEL Express 936 because he was jealous of me ;)

anyway, yeah they work great, the passport and express give warning plenty ahead of time, and they got features up the ass


DEFINITELY WORTH THE MONEY FOR THESE TWO

PASSPORT 8500 - $299
Bel 936 Express - $150


Is the extra $150 worth it for the Passport over the Bel?

Oh yea.. How do police decide what speed you're going while they catch you on the freeway? A radar/laser detector won't be accurate due to the number of other cars around you right? I heard that they have to pace you for a certain amount of time... Is that true?


Hey Self, I'm pretty sure that registering you car in MD won't void your use for the detector in VA. The dude in the Gumball Rally got caught for having a detector, and I'm pretty sure his car wasn't registered there.

Originally posted by Self
(they're legal in MD, illegal in VA):cool:

I thought they are illegal in MD also? hmm

Anyways, I got a uniden on ebay and it is way better than the Whistler POS I had before it, around town you get a lot of falsing, but when youre out on the freeway, it generally picks up the poes.

Oh and a good rule of thumb to follow on a crowded freeway is as long as you arent the fastest car, and are steady (staying in your lane, not weaving in and out) then you will be fine. I drive from Napa to Sacramento doing like 80 in a 65, in the second to fastest lane (its a 4 lane highway) and cops have never even given me a second glance.

most state troopers (atleast in wa) use lazer radar's now...this means they can point it at one car, an get the reading. but, like ppl said before, if ur going w/ the flow of traffic, they have no reason to point it at u, therefore u'll be fine...BUT if ur a lone car, or inbetween packs, ur a VERY easy target, an those ARE accurate.

agreed melt! I have the whistler thing now it's ok...better than what I had before...Nothing!

You can always have the detector mounted in your dash. On some models they have an extender thingy where it mounts out in front of the car. So, the detector looks like it's part of the radio or something. My dad had that done back in the day in his 90' Reagal GS. It was pretty sweet. They had an optional equalizer for the radio, and he did not get that crap. So, there was like this little empty space, and he had it installed there.;)

quote:
--------------------------------------------------------------------------------
Originally posted by crunchymilk49
Well I have the Escort Passport 8500 (KICKS ASS!!!), and my dad just recently bought the BEL Express 936 because he was jealous of me

anyway, yeah they work great, the passport and express give warning plenty ahead of time, and they got features up the ass


DEFINITELY WORTH THE MONEY FOR THESE TWO

PASSPORT 8500 - $299
Bel 936 Express - $150
--------------------------------------------------------------------------------




Is the extra $150 worth it for the Passport over the Bel?


ANSWER:

Well, yes and no

It depends on how much u speed. For instance, my dad is usually like 10 miles over, nothing outstanding, so the Bel 936 is perfect for him. It detects plenty of time ahead, enough to slow down. Now if you are a perfectionist and usually speed above 15+ over the limit, then the Passport 8500 may be for you. I haggled my way down to $249, which isn't that bad considering its the 1st or 2nd best there is. The range is incredible, but of course, the falsing is a bit more than the Bel. But you never know when that "falsing" really is a cop with a weaker laser signal. Overall, the Bel is probably better for most people, but I figured I wanted the best detector there is, because it will last me all through high school / college. So it really is a personal choice.

Originally posted by crunchymilk49
quote:
--------------------------------------------------------------------------------
Originally posted by crunchymilk49
Well I have the Escort Passport 8500 (KICKS ASS!!!), and my dad just recently bought the BEL Express 936 because he was jealous of me

anyway, yeah they work great, the passport and express give warning plenty ahead of time, and they got features up the ass


DEFINITELY WORTH THE MONEY FOR THESE TWO

PASSPORT 8500 - $299
Bel 936 Express - $150
--------------------------------------------------------------------------------




Is the extra $150 worth it for the Passport over the Bel?


ANSWER:

Well, yes and no

It depends on how much u speed. For instance, my dad is usually like 10 miles over, nothing outstanding, so the Bel 936 is perfect for him. It detects plenty of time ahead, enough to slow down. Now if you are a perfectionist and usually speed above 15+ over the limit, then the Passport 8500 may be for you. I haggled my way down to $249, which isn't that bad considering its the 1st or 2nd best there is. The range is incredible, but of course, the falsing is a bit more than the Bel. But you never know when that "falsing" really is a cop with a weaker laser signal. Overall, the Bel is probably better for most people, but I figured I wanted the best detector there is, because it will last me all through high school / college. So it really is a personal choice.


hrm.. thanks for the reply... I'll have to think about it.. perhaps I'll wait for a new model to come out so the 8500 is cheaper!

http://k40.com/Products/Radar/LaserDefuserPlus.html

this thing is worth it...

it's a scrambler, and gives you an audible warning so you can slow down.

by the time the cops gun reads your car, you should have slowed enough to be legal...

well the problem with that above is that it is essentially just a laser scrambler. I haven't had my 8500 for too long, but everytime I've passed a cop, they were using radar. Not once has the laser warning gone off. Yes, it's true that laser is too quick for most radar/laser detectors, so you really just have to hope they aren't using laser. Now the biggest problem with that scrambler is that laser is 100% line-of-sight. The only way that scrambler could work is if the cop aimed it at your license plate. Sometimes cops do, sometimes they don't. Can you take that chance after spending $299??? Like I said before, it's all a matter of opinion about these things, but I say use the more conventional detectors and stay away from "scramblers".

Originally posted by fatninja19

Hey Self, I'm pretty sure that registering you car in MD won't void your use for the detector in VA. The dude in the Gumball Rally got caught for having a detector, and I'm pretty sure his car wasn't registered there.

Damn, really? I'll have to look into that then. I could have sworn that it worked that way, could definitely be wrong though...


Originally posted by Melt

I thought they are illegal in MD also? hmm


Hmm, I also could have sworn they were legal in MD. BUUUTTT I could also be wrong about that too:p I at least know they USED to be, hadn't heard of it changing, but I suppose it's possible.

as far as I know they are illegal in VA and DC but legal in MD...

Originally posted by lloyd_nickens
as far as I know they are illegal in VA and DC but legal in MD...

Yea, that's what I thought. I'll find out for certain when I'm not feeling so lazy:)

I think you can have a detector in virginia as long as it is not connected.

Originally posted by DeViL
I think you can have a detector in virginia as long as it is not connected.

or in sight, depending on the cop (get stopped in va beach and they see it get ready to pay a fine...)

a dude in the gumball rally got fined for a detector even tho the cop didn't see it.
The detector went off when they lasered him and he slowed down immediately.
Thus that was their excuse for the fine.

on the scrambler...

where else would a cop point that gun other than the plate?

the test i read about in some mustang mag had the scrambler by the plate, and they pointed other places on the front of the car, and it still worked.

the problem with laser is that if your detector goes off, it's because they've got you b/c, like you said, it's line of sight. if they're in line of sight, they're aiming at your plate.

I'll just hope that they aren't using laser and be semi-smart about where I speed accidently.

This detector owns them all
www.valentine1.com

Well worth the money

Originally posted by DeViL
I think you can have a detector in virginia as long as it is not connected.

Yes, that's true, I'm sure about that. Only thing with that is that the detector I want to get isn't one that can be unplugged quickly or anything. It will be integrated into the gauge cluster, behind the glass.

Haven't there been like 43987 posts on radar detectors already:confused:

Originally posted by DMC12
Haven't there been like 43987 posts on radar detectors already:confused:

Not that I've seen.. And I'm a bit too lazy to go searching.. plus, I'm more curious about the people here.

Detectors are legal in MD, but not DC/VA. I have a Passport 8500 and on a recent cross country drive from MD to AZ, I was tagged by quite a few lasers, as well as lots of radar. For ppl living around Columbus, OH beware.
The cops use a LOT of laser there. I had about 4 hits in the time it took me to pass through there plus a crap load of radar hits.
Anyway, I sped constantly on my trip and I didn't get one ticket. Experiences may vary.
For more in-depth info check out:

http://www.radartest.com/DS4HEM.html

Ok, I am a little behind on this topic. But it is something I have looked into.

With the Lidar detectors on the market, you can detect lidar pointed at your car, but lidar measures your speed so fast you don't have time to react. What can you do?

A detector will save you sometimes If they target a car ahead of you, and you are ideally situated to detect the lidar, your detector might go off.

Stealth in combination with a Lidar detector will save you at long range. If they are targeting cars at 1000 feet, and your car has reduced reflectivity, they don't get a speed reading until you come into range. Your detector goes off and you have time to slow down. At short range, if they point the gun at your license plate and you have a stealth plate cover, your detector goes off, and you have time to slow before they retarget another part of your car.
Table of Contents

Lidar Gun Description

Police lidar is 904 nanometers, 5 nanosecond pulses of 25 Watt instantaneous power delivered into a 4 milliradian cone angle at 1 KHz repetition rate. The long wavelength and low average power aids eye safety. The divergence angle on transmit allows the units to be used without a tripod. The time of flight of the pulses are multiplied by speed of light and the resulting distances are plotted as a function of time. A least square fit is used -the slope gives the car speed, and the variance gives a validity test.

Lidar power estimates

You need to know this power if you want to build a jammer.
The lidar beam width at 250 meters is about 1 meter^2. The license plate (Colorado) has about .001 meter^2 of retroreflective paint. - 30 dB loss. They are illuminating the retroreflective paint with 25 milliWatts

The return beam (from the retroreflective paint) is also about 1 meter^2 and the receiving aperture is about .001 meter^2 - 30 dB loss.

The return (Colorado) is thus 25 microWatts instantaneous power. The effective measurement bandwidth is 30 GHz. Other states have stronger returns, with Georgia 14 times as strong.

Lidar Range

Lidar range goes as the fourth root of target crossection. This is a very weak function, and so the range for your state probably falls between these extremes of measurment range to the best and worst liscense plates measured.

Georgia license plate, by itself = 2577 ft.
Colorado license plate, by itself = 1339 ft.
With no plate- detection range of a Mazda RX7 with headlights retracted is around 800 ft.
No plate, and the lights covered - detection range < 500 ft.

The Uniden detector ad (Aug 95 Road&Track p31) claims that:
Uniden detector is good to about 8000 feet. Lidar guns are effective to about 2000 feet. Average operating range of police lidar is about 800 feet. In AUTOtronics, March 99 that typical radar ambushes are 600-800 feet because the police must identify the car and make a visual estimate of speed as well. This argument may not apply to lidar with its narrower beam, since the beam itself identifies the car.

Stealth

Stealth is not invisibility, it is just reduction of the range. This may help in combination with a detector, if the police target cars at the far half of their range as defined by the reflectivity of the average car. You get the warning before they get the speed measurement. Without stealth, in most circumstances, lidar detectors only go off when you have been targeted, and you don't have the time to slow down. With some range reduction due to stealth, they might target you before you come into range. They are trained to point at your license plate. If you have a stealth plate cover, your detector goes off, and you have time to slow before they retarget another part of your car.

A. Lidar targets on your car. (what is most important)
To find out what is most important on your car, stand with the light source behind you (park in the sun at dawn or dusk), and look at the region of the car right next to the shadow of your ear. You are looking at light reflected back towards the source. Alternately, you can at night use a flashlight held against your ear and pointed at the car. Stand back by at least 30 feet to see light returned at an angle close to straight back at the source. Another technique is to park your car on a dark street, stand >30 feet away and take a flash photo. Most car parts have similar properties in the visible and near IR. Some special materials absorb in the near IR and transmit in the visible and hence this test using visible light is not indicative that a special police-lidar countermeasure is working.

The license plate is the strongest target on the front of the car. License plates have retroreflective material that returns light in a 4 milliradian cone angle (Colorado plate measurement). Different States have a very large difference in the lidar return from the plates. Colorado is one of the lowest, using retroreflective paint on only the letters and a thin border. Most large states have better retroreflective material covering a larger area of the plate.

The strongest reflection of the rear of the car is an array of little corner cubes in the red tail light cover. All cars have a hexagonal array in the plastic tail light covers. These are just like a bicycle reflectors. You can distinguish these retroreflectors from the tail light lens by the array pattern. The tail light lenses are in a rectangular array, and this corner cube array is in a hexagonal pattern. The second strongest target on the rear is the rear liscense plate.

There is also a corner cube array on the side-front turn signal indicators. These do not present much of a target unless the police target you from the side in which case the cosine factor in speed measurement will give them too low a speed to worry about.

Next in strength are head lights, brake lights, turn signal indicators, and fog lights. Of these, headlights are highest, followed by turn signals and fog lights. The retroreflection mechanism is interesting. Light enters one-half of the light and is returned from the other half. I suspect that the light enters one half, hits the back reflector, is focused near the filament, expands to the other side back reflector, and is recollimated returning towards the original source. This phenomena happens over a moderately narrow range of angles directly in front of the car.

Grills, forward facing chrome, and any rounded specular material are the next strongest targets. Look for a bright glint from any rounded surface which always presents one small region facing the source. Flat regions are almost always pointed away from the source and hence do not contribute to the return.

B. Stealth Techniques. (what to do about these Lidar targets)
The license plate is the most important on the front of the car, unless you are blessed with a plate without retroreflectors (The only example I know of this is the old California yellow on blue plates) In some states you can legally remove the front plate. In some states it may be sufficient to paint over the retroreflective paint with glossy house paint to match the color. Check your local laws first. Many states use 3M retroreflective material, which would be difficult to paint over inconspicuously. For these states it is preferable to use a lidar crossection reducing license plate cover. One such cover , is reviewed at the end of this document.

The array of corner cubes in the tail light cover. These are on all cars, and are probably required by law. If you paint them black, a car driving by would not see your car on the side of the road as easily. The only thing I can figure is to get one of the liscense plate covers that block IR, and cut out a piece and glue it over the corner-cube array. (expect new products for this application to come out soon)

Head lamps, turn signal lamps, and fog lights. Get retractable headlights or glue a section of IR absorbing liscense plate cover over your headlights. Remove the fog lights, glue liscense plate cover over your turn signal indicators. The "smoke" headlight covers that are on the market do a fine job of reducing retroreflection from headlights. The down side to these things is that they really aren't legal in most states.

The most extreme stealth includes taking care of all other possible glints. Get a flat black car bra, paint over flat surfaces with glossy paint, paint over rounded surfaces with flat paint. These returns are small compared to the Plates, cornercube array, and lamps.

Lidar (and radar) range goes as the fourth root of return signal power. By eliminating the single strongest return, the best you can hope for is to reduce the range by about a factor of 2 to 4, from reducing your crossection by a factor of 16 to 256. This is because even if you reduce the strongest return by a larger factor than 256, you probably have something else which returns the lidar signal by at least 1/256 as much as this strongest factor. When you eliminate the strong return you still have the other source of returns. To get a range reduction of more than a factor of 4, you probably have to apply stealth measures to multiple reflectors on your car. If you get the license plate, the corner-cube array (back of car only) and the lamps I think you'll get your visibility under the average range at which police target cars.

Jamming Police Lidar

There have been reviews of radar and lidar jammers in which tested products that use these jammer techniques and found they didn't work.

Is Jamming feasible? The two techniques outlined here do not appear to be viable on technical grounds. Assumptions about these techniques are built into the descriptions below, and a more $ophisticated jammer might work.

Is it legal? Jamming lidar is not illegal under FCC rules since they don't regulate this part of the spectrum, but most jurisdictions have a law which makes it illegal to "interfere with the duties of a police officer." I am not a lawyer and the above should not be considered legal advice.

There are two kinds of jamming proposed and on the market -

pulsed LEDs and CW Headlights.

My calculations indicate that neither of these work without combining them with stealth measures. These calculations are specific to the range of 250 meters.

CW Jamming sources.

Headlights aimed into .5 by .2 radian distribute their power over 0.1 steradians, at 250 meters range, this illuminates 6000 square meters or 10^(-6) of the police receiving aperture. 200 Watt lights put 200 microWatts into the lidar gun. Presumably the lidar gun has a narrow band filter passing about 10 nanometer of the spectrum, reducing this CW jammer by a factor of about 40, meaning that the light is now 5 microWatts. The detector is AC coupled so we calculate the shot noise due to this background ShotNoise = SQRT[RecievedPower * PhotonEnergy * MeasurementBandwidth] Sqrt[5. Micro Watt PlanckConstant SpeedOfLight/(900 Nano Meter)*30 Giga Hertz] = 0.200 microWatt equivalent optical power. This is small compared to the 25 microWatts return from a license plate. The Car and Driver article indicates that this jamming technique works, contrary to this calculation, and to Craig Peterson's article.

Pulsed Jamming sources

LEDs:
At a 250 meter range, LEDs broadcast into .005 steradians (.5 radian horizontal times .01 radian vertical) would have to be 500 times brighter than the 25 milliWatts they hit you with to beat the retroreflective paint which broadcasts into only 10^(-5) = ( 4 milliradian times 4 milliradian) return.

This is 12 Watts, well beyond the power of an LED. At shorter range, the problem of jamming is worse. The police lidar power grows as 1/(Range^4) power as the range decreases, and your jammer power grows only as 1/(Range^2). The reason jamming is not feasible is that you have to broadcast into all directions, reducing the power aimed at the lidar gun.

Laser diodes:

The strongest laser diode you can buy is the one they put in the lidar gun (see product data sheet below). Unless you actively steer this jamming signal towards the police lidar gun, it will only be an effective jammer at ranges farther than about 200 meters for a jamming signal broadcast into .005 steradians.

Fighting Tickets

What's "judicial notice" mean? When something has been given judicial notice, it means that the theory of operation has been proven to the court and expert testimony to prove that is no longer needed. Radar is one such example. Aircraft speed traps are another.

Laser, however, has not been proven to the courts, so the prosecution will have to fly in expert testimony to prop up their case and new toy) to prove that their latest gadgetry actually works as advertised.

Laser -cannot- be used while the cop car is rolling. The vibrations would scatter the beam everywhere. I've only been ambushed by a laser trap once, and the setup had one officer doing the laser, another next to him radioing the to the chase vehicles, and 4 or 5 chasers. So, this is hardly a valuable use of scarce police resources!

In cases of aircraft tickets, if someone contests one, both the arresting officer and airplane spotter (or pilot, if the same) have to be hauled into court to say that yes, that driver was the one we stopped. Theoretically the same should happen with laser traps, but don't count on it until someone says something. ("Shhh. It's our secret. Don't let the public know" kind of stuff) One of our members in Texas has been fighting a laser ticket for 2 years now. He's only asked for one or two continuances (extensions) the rest of the time has been the prosecutions fault. Still no outcome. This works to his advantage. Since laser isn't on judicial notice there, they had to fly in experts.

[Also from [email protected], some info on lidar in New Jersey, and who is paying for lidar guns]

State Police based in Morris County have begun using 23 of the $3,800 LTI 20-20 Marksman laser guns. Newspaper accounts say that the new units will be distributed to other parts of the state when a municipal judge convicts a driver of speeding with a laser (i.e., no judicial notice yet). The initial group of units was purchased with a grant from the National Highway Traffic Safety Administration. New Jersey is the 15th state to adopt lasers.

Dang, good post.

Can Police effectively use radar detectors on the highway while they're moving?

Ok, here is my shit about this.

I have the Bel 980 radar/laser detector, and it works great for exactly what it's supposed to do - DETECT! It's hard to beat the performance of it without paying lots.

I also have the Blinder M-10 Plus Laser JAMMER. Now, this IS illegal, but who the fuck cares right?! ;)

My M-10 Has defeated 3 types of laser guns so far, in real life, and has been tested against ALL of them and has jammed them ALL.

I have never had a laser ticket since I've had it, and it gives me an annoying beeping sound when it's jamming, so I slow down and then turn it off when I am doing under the limit.

Cops can't say shit, because if they accuse me of anything I can basically tell them to fuck off since they have no definative proof of it.

K-40 Laser Diffuser also works, along the same lines in principle, and Bel Labs supposably made one too, but I have never seen it, so.....

Anyways, my laser jammer has two units, mounted in my bumper, on both sides of where the liscence plate is supposed to be. It emits a class 1 laser, so that's why it's illegal (police guns use class 3). Also, it's illegal because I am JAMMING the signal. I can read the signal, but I can't ram it.

So, in conjunction with my Bel 980 and Blinder M-10 I am pretty much invisible to the cops.

Mind you, I can't jam Ka radar band yet, but I don't speed in town anyways.

~A

they go off when there is radar signals in the air, most radar guns are mounted on the cops dash and they hardly ever have them turned on.. detectors are useless.. here in cali they are now illegal and cops are no longer required to use radar guns

Originally posted by Saku39
Detectors are legal in MD, but not DC/VA. I have a Passport 8500 and on a recent cross country drive from MD to AZ, I was tagged by quite a few lasers, as well as lots of radar. For ppl living around Columbus, OH beware.
The cops use a LOT of laser there. I had about 4 hits in the time it took me to pass through there plus a crap load of radar hits.
Anyway, I sped constantly on my trip and I didn't get one ticket. Experiences may vary.
For more in-depth info check out:

http://www.radartest.com/DS4HEM.html
watch out for akron too, they have a crapload of cops there at night due to it being a party college. all using lasers...

i use mine and it's worked great. on hiway it's almost flawless, in the city the cops really dont use radar but it points them out occasionally. you still have to watch for cops no matter what... sometimes it doesn't pick them up.

up here in cali the cops only use Ka, in town and on the highway/freeway, ive never ever gotten a laser readout on my detector. right now i have 1 at-fault accidnet, and 2 tickets, one of which im doing traffic school for so after the school ill have 2 points, 1 more and i lose my license so im going to be goody 2shoes for a while... dont need my radar detector anymore

12 points within 2 yrs is the suspension in ohio...

i think i have 4. i gotta watch out for that 6 pt drag racing :bloated:

Originally posted by 90gs
up here in cali the cops only use Ka, in town and on the highway/freeway, ive never ever gotten a laser readout on my detector. right now i have 1 at-fault accidnet, and 2 tickets, one of which im doing traffic school for so after the school ill have 2 points, 1 more and i lose my license so im going to be goody 2shoes for a while... dont need my radar detector anymore


Where in CA are you located?


And how do police determine the rate of your speeding while he/she's on the highway?

Hey I've a question for everyone. I heard a LOONG time ago of a guy that was speeding in excess of 20+ over the limit. Is was clearly a speeder and so the cop on the side of the road clocked him, which he had nothing. The cop was a typical Highway Patrol and pulled him over, doing a through search for a jammer and eventually let the guy go because he couldn't find one on the guy. How/why? The guy had custom made his car with a coat of metal that reflected the radar back, thereby effectively jamming the signal. I've scoured all over the net and can't find that metal. Any chemists here that have any idea?
By the way, it WASN'T a spray on (although I'm curious how much those actually work)

Hey I've a question for everyone. I heard a LOONG time ago of a guy that was speeding in excess of 20+ over the limit. Is was clearly a speeder and so the cop on the side of the road clocked him, which he had nothing. The cop was a typical Highway Patrol and pulled him over, doing a through search for a jammer and eventually let the guy go because he couldn't find one on the guy. How/why? The guy had custom made his car with a coat of metal that reflected the radar back, thereby effectively jamming the signal. I've scoured all over the net and can't find that metal. Any chemists here that have any idea?
By the way, it WASN'T a spray on (although I'm curious how much those actually work)

Where did you hear about this?

I'm skeptical only because you aren't supposed to have that stuff outside of military use.

He must of had some nice connections!

I want to meet this person! :D

In any case, all it was most likely is the same stuff they use on fighter jets and tanks (the metal ones). It absorbs the radar signal and since nothing gets bounced back they have no idea where it is (or how fast).

The comosite plastic tanks in use today use similar technology but they acomplish this with a woven fabric.

~A

As I said, I can't recall exactly where I heard it, I believe it was a tape or something a friend sent me. Either way though, I'd love to get my hands on a little to deck out my soon-to-be-Camaro SS (as soon as I can fricking find one!) I lost my radar jammer when I sold the Mustang seen below, I forgot it until the guy saw the car, so he conned me into giving it to him with the car. That's alright, I can always get another. :evillol:

But yeah, if you or anyone reading this hears anything more about that metal stuff, e-mail me or msg me on any of the messengers.

As I said, I can't recall exactly where I heard it, I believe it was a tape or something a friend sent me. Either way though, I'd love to get my hands on a little to deck out my soon-to-be-Camaro SS (as soon as I can fricking find one!) I lost my radar jammer when I sold the Mustang seen below, I forgot it until the guy saw the car, so he conned me into giving it to him with the car. That's alright, I can always get another. :evillol:

But yeah, if you or anyone reading this hears anything more about that metal stuff, e-mail me or msg me on any of the messengers.

What jammer was it?

You can find out more info about the radar absorbing metal by searching military sites or stuff like the Discovery channel (as they did a show on it).

Good luck finding out how to make it. As far as I know, it's classified.

~A

Uh d'oh...I meant to post it...oh well, here it is:
http://www.amazing-radar-jammers.com/media1.htm
It worked great, and I'd recommend it. Don't worry about the "ONLY 2 DAYS LEFT" BS...they update their site every hour...
:banghead: Now I KNOW I posted this somewhere else...I'm having some bad Deja Vu... :screwy: oh well. You can see the link twice then :) Enjoy!

The guy had custom made his car with a coat of metal that reflected the radar back, thereby effectively jamming the signal. I've scoured all over the net and can't find that metal. Any chemists here that have any idea?
By the way, it WASN'T a spray on (although I'm curious how much those actually work)



first of all as spy said those are radar absorbing materials not reflecting materials....a radar reflecting material will only make you more visible.....

second those materials are classified and if you get caught smugling something like it from a military base you would get charged with treason....

Uh d'oh...I meant to post it...oh well, here it is:
http://www.amazing-radar-jammers.com/media1.htm
It worked great, and I'd recommend it. Don't worry about the "ONLY 2 DAYS LEFT" BS...they update their site every hour...
:banghead: Now I KNOW I posted this somewhere else...I'm having some bad Deja Vu... :screwy: oh well. You can see the link twice then :) Enjoy!


i'm sorry but those jammers are bull...they are only good fore ripping people off....read this:

http://www.radartest.com/JOS.html

After reading the article, I do wonder, but nonetheless I'll likely buy another, since I was never pulled over with it on me. Being conned or not, I felt better and much more relaxed.

Treason? I suppose...its not like I'm making it, just applying it to my car. Its basically the same stuff used in stealth fighters I'd assume, but hey, whatever :rofl:

Uh d'oh...I meant to post it...oh well, here it is:
http://www.amazing-radar-jammers.com/media1.htm
It worked great, and I'd recommend it. Don't worry about the "ONLY 2 DAYS LEFT" BS...they update their site every hour...
:banghead: Now I KNOW I posted this somewhere else...I'm having some bad Deja Vu... :screwy: oh well. You can see the link twice then :) Enjoy!

I've seen proof that those don't work.

Don't take this as me insulting you, just that I'm telling you what I know to try and help you out.

The Speed Measurement Labs tests all this stuff every year. They test the radar/laser detectors, radar jammer, and laser jammers.

I can tell you right now that sending an "FM" chirp to a laser gun will no nothing. You need a laser emitting device to counter the laser signal.

As for radar, an "FM" chirp wont work either. You need to send the same signal back, but inverted. You can jam X and K radar, but you cannot jam Ka since it uses a wide range of frequencies and not one fixed frequency.

You would be better off spending your money on a quality radar/laser detector like Val 1, Bel, or Escort, and later getting a laser jammer from Bel, K-40, or Blinder.

~A

What about the remote models like the passport SR7, and SRX? Obviously they have tested well http://www.radartest.com/article.asp?articleid=1048 does anyone have a comparable model, or one of these? How do you like it, and did you install it yourself? They do not seem that complicated to install. After all, most people in here have installed something or another on their car - how hard could this be?

Well I dunno, it seemed to work for me...I'll have to look around and research it a bit more. I'm not buying another one anytime soon, so that's good...
What's your personal preferance to jammers? (what's the best IYO)

if you're talking about radar jammers, from what I have read, "Except for the Phantom, which contains rudimentary radar-detection circuitry, each is essentially an empty box with a 12-volt power cord, a cheap cast-plastic waveguide assembly, one or two front-mounted LEDs, a basic power-supply circuit and a button or two." Jamming Ol' Smokey (http://www.radartest.com/article.asp?articleid=6000) My brother had the "eclipse" which is mentioned in the article - and it was exactly that; an empty box. As far as the laser jammers, some seem to have performed exceptionally well. But stay away from Rocky Mountain Radar, just about everything they make seems to be worthless....

I'll say it again.

To jam laser, you HAVE to have an "ACTIVE JAMMER."

These include the models Bel Laser Shifter (or something like that), Blinder M-10, and K-40 Laser Diffuser. No one else. That's it.

Now that is settled, as for radar, you can only jam X and K bands.

There are units out there that look like a big box (about as large as a glove compartment) and they DO jam the X and K bands because it is "ACTIVE" as well.

You CAN'T jam the Ka band because it is not a fixed frequency. The only way to achieve it would be to either steal some miliary hardware or get a laptop that doesn't exist yet and write the software to control the high output generator needed.

You simply just HAVE TO HAVE an "ACTIVE" jammer no matter what you want to jam. Active jammers are illegal. Passive jammers are not (GEE, I wonder why? Maybe because they don't work!).

~A

why don't you guys just do the speed limit? or a bit over? Are you that desperate to race (not street race, i mean driving fast down the road for no reason at all but to look cool) to the next red light, or so shave off 10 seconds to a minute or so of time? So you can arrive early at your destination. I've seen countless times where someone goes speeding by me just to slam on his brakes at the red light just ahead of us. I laugh, because everytime they speed off like bats out of hell and i end up pulling up beside them at the next light :)

also, the cops sometimes don't keep there radars and lasers and whatever on all the time. You can come speeding by and a bit before you come by them they put on there radars. Your sensor goes insane but it's to late. Fine, jam the radar. But when the officer see's nothing, he'll be coming after you anyways. Then, when he pulls you over, you'll be stuck on the side of the road for a few minutes. And guess what.. there goes those precious minutes, more like seconds, you saved by speeding around. If he finds the jammer, uh oh. You are going to wish you had just done the speed limit.

It's also pretty useless if your racing. Believe me, if your doing 100mph down a road and you blow past a cop. He doesn't need that radar or laser to know your speeding. If he doesn't get you for speeding, he'll have you for racing. Which is worse :)

To be honest, i do sometimes speed inorder to get to my destination sooner. Not as much now, because it seems useless. I'll just leave a few minutes earlier and it saves me the trouble and worry. I have gone speeding down a street at 125+ kph when it was 50kph speed limit. So, i got home a few minutes earlier. I had to ask myself though, was it really worth risking my drivers licenses or even my life, just to save a few minutes?

The best is when you're just cruising along at the speed limit on a street, and some guy goes flying past you.. only to get stopped in traffic at the next light. And the light turns green, and by the time you get there traffic is moving and you just continue on like its nothing... mean while laughing at speed racer.

It gets funnier the more times you can time the light, and just roll right past speed racer in traffic.

why don't you guys just do the speed limit? or a bit over? Are you that desperate to race (not street race, i mean driving fast down the road for no reason at all but to look cool) to the next red light, or so shave off 10 seconds to a minute or so of time? So you can arrive early at your destination. I've seen countless times where someone goes speeding by me just to slam on his brakes at the red light just ahead of us. I laugh, because everytime they speed off like bats out of hell and i end up pulling up beside them at the next light :)

also, the cops sometimes don't keep there radars and lasers and whatever on all the time. You can come speeding by and a bit before you come by them they put on there radars. Your sensor goes insane but it's to late. Fine, jam the radar. But when the officer see's nothing, he'll be coming after you anyways. Then, when he pulls you over, you'll be stuck on the side of the road for a few minutes. And guess what.. there goes those precious minutes, more like seconds, you saved by speeding around. If he finds the jammer, uh oh. You are going to wish you had just done the speed limit.

It's also pretty useless if your racing. Believe me, if your doing 100mph down a road and you blow past a cop. He doesn't need that radar or laser to know your speeding. If he doesn't get you for speeding, he'll have you for racing. Which is worse :)

To be honest, i do sometimes speed inorder to get to my destination sooner. Not as much now, because it seems useless. I'll just leave a few minutes earlier and it saves me the trouble and worry. I have gone speeding down a street at 125+ kph when it was 50kph speed limit. So, i got home a few minutes earlier. I had to ask myself though, was it really worth risking my drivers licenses or even my life, just to save a few minutes?

Hmm, that's funny because I have never street raced a day in my life. I resent your assumption that I need the jammers to street race.

I have all my detectors and jammers because I like to drive fast on the freeway at night. I don't see a problem with this as I am the only one on a straight road that is meant for high speeds.

Even if I got pulled over, the cop would have no proof of my speed and he can't search my vehicle without a warrant. He'd have to tell me to show up at an inspection facility and by that time I'd have the jammer off the car.

~A

:iagree: with spy. In many states cops have to show you proof of the radar readout (the speeder has the right to ask to see it). Therefore, if he cannot show it, then what's a judge going to do? No proof=no case

However, there are a few states that don't have that law...those ones suck :bricks1:

Hehe, ya redneck. Whats even greater is when he's now stuck behind traffic that is doing near the speed limit :) You can look in your rear view mirror and see the guy is starting to curse and is getting pissed off.

You guys misunderstood what i said. I never said you street race. I gave a bunch of different situations for the jammer/sensor being somewhat useless. For street racing at high speeds. And for cruising at high speeds. etc.

I don't mind people that cruise down freeways/expressways/highways at high speeds, heck, i do it once and a while ! I'm just talking about the people that feel the need to do 100 (mph or kph, doesn't matter, to fast) down the streets when it's not even near the speed limit. (If your speeding because you want to race. Do it at a track or some exclude street where hardly anyone if anyone goes. Then i can hopefully not hear the loud annoying fart cans flying around everywhere. Funny story. My friend lost his muffler when we was doing donuts. So we were driving around without it, very loud :( but we were to lazy to put on another one. In no time he had people flashing their lights at us wanting to race. One comes (rice) and is like, "nice car man, it sounds great". :eek7: It's funny too, cause you can hear and see the ricers from a mile away. Their big glowing ground effects and their loud exhausts :) )

Okay, in a way he does have proof of something. Not necessarily that your speeding, but that you have a jammer. Which is illegal in most places, aren't they? So we'll say a few cars go by and he clocks them. Then this one car comes by, looks like he's gone much faster then the rest (i'm assuming you'd be going faster then the rest to fill your need for speed. if your going 5 over or 10 over :disappoin i'm sure you doing much faster) and the cop thinks "i got me a speeder !" looks at his radar as this guy goes flying by. Nothing. then the cop thinks "i got me a speeder with a jammer !" I don't know about you, but thats good enough for a search.(since all they need is reasonable and probable grounds to suspect something illegal has or is happening) He isn't trying to get you for speeding, but rather a jammer. Which is most likely illegal and has a stiffer penatly then speeding. Even if your by yourself, the cop knows the speed most people travel. As their job involves watching traffic. Now it's pretty easy to tell whos speeding and who's not even when they are by themselves. So if he still sees nothing, then you still have a problem. Of course, laws can be different in places. But i'm assuming that's what would happen. Atleast, thats what i would end up doing. Say he does ask you to go to the inspection place, he might follow you. Cops aren't that dumb, they know your going to stash the thing the first chance you get.

I'm not trying to bash people who have jammers and everything. I'm just trying to point out more to the argument of if it's useful or not and if you should get it or not. You have to think more then just "yes, i can speed with out being caught" Ya, you won't get caught for speeding, you'll get caught for jamming :( Of course, i didn't read most of the posts because it's to much reading. But i red page 3 :) And if your laws are messed up and you can get away with that stuff then just skip over this whole thing :) well, to late for that. Just forget what i typed.

See if you guys would have a sweet Iroc Camaro with the special metal and would wash it and wax it everyday....cops would not be a problem








:grinno:

Has anyone HERE (no stories of someone you know, everyone has heard a million of those) ever succeeded in building an active RADAR jammer, one that works? I've seen lots of plans, but I would be afraid I was just building a box with wires in it, or end up having my desktop computer sitting on my dash :lol:

It also seems that all of us who do use them (jammers/detectors), are basically better off just using a good detector for the radar, and if we have to worry about laser, then a shifter as well.

Hey Everyone,

Do you guys/glas know if any of these radar/laser jammers will work in Canada, and if they do wich ones???

I have this really old school one from Craig...it sucks now and beeps for every little thing.

Any response would be appreciated.

Thx,

Scooby Doo

I'm not a radar proffesional, but I would assume they get their equipment from the same place the US does. radar isn't like cell phone networks or something where every country has their own version. Although, since U.S. Ka-band radar units operate at 33.8, 34.7 and 35.5 GHz Cananda could be different. Just my 2 cents.

Hehe, ya redneck. Whats even greater is when he's now stuck behind traffic that is doing near the speed limit :) You can look in your rear view mirror and see the guy is starting to curse and is getting pissed off.

You guys misunderstood what i said. I never said you street race. I gave a bunch of different situations for the jammer/sensor being somewhat useless. For street racing at high speeds. And for cruising at high speeds. etc.

I don't mind people that cruise down freeways/expressways/highways at high speeds, heck, i do it once and a while ! I'm just talking about the people that feel the need to do 100 (mph or kph, doesn't matter, to fast) down the streets when it's not even near the speed limit. (If your speeding because you want to race. Do it at a track or some exclude street where hardly anyone if anyone goes. Then i can hopefully not hear the loud annoying fart cans flying around everywhere. Funny story. My friend lost his muffler when we was doing donuts. So we were driving around without it, very loud :( but we were to lazy to put on another one. In no time he had people flashing their lights at us wanting to race. One comes (rice) and is like, "nice car man, it sounds great". :eek7: It's funny too, cause you can hear and see the ricers from a mile away. Their big glowing ground effects and their loud exhausts :) )

Okay, in a way he does have proof of something. Not necessarily that your speeding, but that you have a jammer. Which is illegal in most places, aren't they? So we'll say a few cars go by and he clocks them. Then this one car comes by, looks like he's gone much faster then the rest (i'm assuming you'd be going faster then the rest to fill your need for speed. if your going 5 over or 10 over :disappoin i'm sure you doing much faster) and the cop thinks "i got me a speeder !" looks at his radar as this guy goes flying by. Nothing. then the cop thinks "i got me a speeder with a jammer !" I don't know about you, but thats good enough for a search.(since all they need is reasonable and probable grounds to suspect something illegal has or is happening) He isn't trying to get you for speeding, but rather a jammer. Which is most likely illegal and has a stiffer penatly then speeding. Even if your by yourself, the cop knows the speed most people travel. As their job involves watching traffic. Now it's pretty easy to tell whos speeding and who's not even when they are by themselves. So if he still sees nothing, then you still have a problem. Of course, laws can be different in places. But i'm assuming that's what would happen. Atleast, thats what i would end up doing. Say he does ask you to go to the inspection place, he might follow you. Cops aren't that dumb, they know your going to stash the thing the first chance you get.

I'm not trying to bash people who have jammers and everything. I'm just trying to point out more to the argument of if it's useful or not and if you should get it or not. You have to think more then just "yes, i can speed with out being caught" Ya, you won't get caught for speeding, you'll get caught for jamming :( Of course, i didn't read most of the posts because it's to much reading. But i red page 3 :) And if your laws are messed up and you can get away with that stuff then just skip over this whole thing :) well, to late for that. Just forget what i typed.

Oh trust me, I don't just think I can speed without getting caught now.

There's no way I would be that nieve.

When used with common sense, a jammer makes you 99% invincible. In my opinion that is.

My radar detector lets me know when a cop is near me in town, so I know to take a different road or just watch my speed a bit better. I don't speed in town, but I can't watch my speed all the time.

And if I have my laser jammer on, and the cop gets no reading because of it, he still can't accuse me that I had a jammer. He'd have no proof and no right to accuse me of that.

Like I said, when used with common sense, it's perfect. I turn it off when I get the sound that I am being targeted, and then they get their reading saying I am doing the speed limit.

I've never street raced a day in my life. I have speeded on the freeway by my house, but I don't see the harm at 2:00 AM in the middle of the week. No animals can get on the freeway, and there's no one else but me. I know it's still illegal, but at least I'm trying to be safe about it.

I don't weave in and out of traffic, I don't speed in town, and I never ride people asses either.

I'd like to think I'm not part of the general problem these days. :D

~A

What jammer was it?

You can find out more info about the radar absorbing metal by searching military sites or stuff like the Discovery channel (as they did a show on it).

Good luck finding out how to make it. As far as I know, it's classified.

~A

There is RAM paint too, (Radar Absorbing Material paint) heh, but i dunno, maybe if you have a friend who works in the airforce you can get some, its pretty thick paint, dries thick too, used on the outside of f117 fighter bombers. awful to use though, and you gotta keep retouching it cos it ablates pretty easily in rain or high wind conditions. but not 100% effective, maybe 90% max. but good enough.
heh but the catch is, its damn expensive to make and the air force to buy. so make friends with a local air force technician who likes racing cars too.

RDX

p.s. you never heard anything or saw anything from me.. ;)

Hey Everyone,

Do you guys/glas know if any of these radar/laser jammers will work in Canada, and if they do wich ones???





Nah.. No radar/laser jammers work in Canada due to the cold temperatures.. hahahhhaha :biggrin: