Hidden radar detectors...

[Joe Bob]

Can't tell you how many times my V1 has saved my butt. If you have to hide it due to local laws, spend the money.

I even use it in my company issued car.

[HawgRyder]

If there is such a thing as a Laser jammer....I'm sure the Military would like to know about it.
A Laser works on the reflection principle.....the beam hits the target and bounces back to the receiver...when the target is travelling towards the receiver....the frequency of the beam is raised slightly...when the target is moving away from the receiver...the frequency is lowered.
The diameter of the beam is about the same as a human hair.
If there is a way to stop the beam from being reflected by any part of the target...or...if the frequency of the beam could be changed....then you would have defeated the unit.
The problem is...detecting the frequency....and then modifying it..all takes time....something you dont have....it's all over in less than 1/1000 of a second!
Bob

[pwd72s]

This makes me really curious about what escort calls a "laser shifter"...what? Like a mirror flashing sunlight? Deflecting the beam so a cop doesn't get a reading back????

Me? Only drive a Ford Ranger 4.0 these days...capable of cruising 80 all day long, yet invisible to the boys in blue. So...Just using my V-1 and blending into the herd works. Haven't had a ticket for over a decade.

[yamajon]

Originally Posted by glennspiegler

The 9500ci is PERFECT. Absolutely love it. Doubt you found one for $895. They were released in May 08 for $1600 no deals. When it goes off its real. Is also stealth and supposedly cant be detected.

thanks for your input...

[spence88mph]

I've had a brand new radar detector for a while, is the top of the line creative technologies but beats me where I can fit it, it will work though glass or plastic but not steel. Most people mount them inside plastic bumpers, everywhere on my car is alloy/steel. Would love to get it working though as I just look at the throttle these days and I'm on the wrong side of the law.

[911JC911]

Originally Posted by HawgRyder

If there is such a thing as a Laser jammer....I'm sure the Military would like to know about it.
A Laser works on the reflection principle.....the beam hits the target and bounces back to the receiver...when the target is travelling towards the receiver....the frequency of the beam is raised slightly...when the target is moving away from the receiver...the frequency is lowered.
The diameter of the beam is about the same as a human hair.
If there is a way to stop the beam from being reflected by any part of the target...or...if the frequency of the beam could be changed....then you would have defeated the unit.
The problem is...detecting the frequency....and then modifying it..all takes time....something you dont have....it's all over in less than 1/1000 of a second!
Bob

I suggest looking into the links I posted.

[HawgRyder]

As an Electronics Technologist, I have been in the civilian and military field for almost 45 years.
I started with tubes of all things....up to Klystrons!
We worked on several Radar and Laser ( Lidar) defeat systems for the military....and I can state in NO uncertain terms that an encoded-pulse-doppler system is not defeatable at this time under normal conditions.
The signal emmited by the Lidar unit is encoded digitally so that the received pulse MUST submit to a challenge by the receiver as to it's authenticity.
If the pulse being received by the sensor does not contain the encoded signal....now changed in frequency by the oncoming vehicle....it fires an alarm in some cases (to tell the cop it's being jammed) and then re-fires the transmitter with several pulses (each with a different encoded signal) to get the correct speed of the target.
Some units even splay out the beam at slightly varied angles to hit the vehicle at different places to get a better reading.
Remember....all this takes place at the speed of light.
Bob
PS....putting reflectors and diffusers on various parts of the car does not help.
Also transmitting a constant beam of energy wont do it either (no encoding)...and how do you know what freq the trans used?
You might be giving a nice wide variable to the receiver indicating a 200MPH difference!!....LOL

[911JC911]

I don't think these laser jammers actually 'jam' the laser gun...but rather confuse it by bombarding it. That's what gives you a few seconds to slam on the brakes so the 5-0 can get your reading at the speed limit.

While I'm no laser expert and don't have a shark with a laser beam attached to its head, I've seen these things successfully jam numerous officers....

[RWebb]

"gives you a few seconds"

unh uh

[HawgRyder]

And the "old wives tales" linger longer than the person who started it....LOL
I'm not going to argue the question....everyone knows "someone" who has a way to defeat the police Radar or Laser system.
It used to be....stuff tin-foil inside youe hubcaps....or fly tinfoil from your antenna....and of course the really good one....spray something that costs $10 a can on the front of your car.
It's always an idea that on the face of it....sounds dumb...but the guy swears it works....his brother-in-law has never gotten a ticket....and he drives like Mario Andretti all the time.
Good luck with all the ideas....and please...have a good lawyer on speed dial.
Bob

[911JC911]

I'm not going to waste my time trying to convince the 'old dawg experts' about new technology. It's always nice to try and assume that it's a friend of a friend who was the one who had this work (it usually helps refute the other party's claim so go with it). I don't think I ever mentioned how I saw this laser doohicky work (did I say I was behind the wheel or did I say I was a passenger....or did I say it was a story a buddy of a buddy told me while we were drinking)? Regardless of that, here's a few videos for your enjoyment. Of course, anything can be put on YouTube....so take it with a grain of salt. You never know if these videos were staged to purposely give the results they want you to see.

http://www.youtube.com/watch?v=gOa1oqfgmow&NR=1
http://www.youtube.com/watch?v=byzKtId7aGA&feature=related
http://www.youtube.com/watch?v=guAacDzeKlw&feature=related

I'll take my experience and evidence to formulate my own opinion and you can use your Electronics Technologist title to formulate yours.

[RWebb]

Well, "I'm gonna get all [epitomological] on your ass."*

Your post directly raises the issue of how you know what you know. What is your level of "experience" and what is the quality of the "evidence"?

Unless you can run a full-blown scientifically valid experiment, you are left with expert opinion to rely on. Near the bottom, of this hierarchy is reliance on anecdotes. At or below, the bottom is wishful thinking.

The characteristics of light waves makes it very difficult for an electronic circuit to keep up - I do not see how the processing required can be done quickly enough. And that is what others told you. New technology does enable violation of physical law. Maybe, some new and novel method has enabled actions hitherto not considered -- if so, the onus is on the proponent to prove that.

Against that, we have the "evidence" of advertising by an obviously biased party - the seller.

Believe whatever you want.

* apologies to Quentin Tarantino

[madmmac]

Jammers do work....Some way better than others.

http://www.guysoflidar.com/july-2008/laser-jammer-test.html

http://www.guysoflidar.com/laser-jammer-test-spring-2006/laser-jammer-tests1.html

[911JC911]

Originally Posted by RWebb

Well, "I'm gonna get all [epitomological] on your ass."*

Your post directly raises the issue of how you know what you know. What is your level of "experience" and what is the quality of the "evidence"?

Unless you can run a full-blown scientifically valid experiment, you are left with expert opinion to rely on. Near the bottom, of this hierarchy is reliance on anecdotes. At or below, the bottom is wishful thinking.

The characteristics of light waves makes it very difficult for an electronic circuit to keep up - I do not see how the processing required can be done quickly enough. And that is what others told you. New technology does enable violation of physical law. Maybe, some new and novel method has enabled actions hitherto not considered -- if so, the onus is on the proponent to prove that.

Against that, we have the "evidence" of advertising by an obviously biased party - the seller.

Believe whatever you want.

* apologies to Quentin Tarantino

Laser jammers....first hand experience on the effectiveness of such a contraption. How's that for wishful thinking? Now where is your evidence that it doesn't work? Dictionary need not apply. It's easy to run up Wikipedia to find definitions to try and contradict new products from behind a computer monitor. It's another thing to open our eyes and see if things work or don't work. Armchair skeptics....gotta love 'em.