spyderbret

iTrader: (1)

I just ran into another issue. I bought the mirror mount from Country Joy, great product by the way, but the detector now sits right above the LCD screen. I had about 5 false lasar signals yesterday. My detector was fine when mounted on the windshield but now it keeps alerting to a laser signal that is not there. I like the mirror mount but I think I am going to go back to the windshield.
Anyone else with a mirror mount having this type of issue?

DetroitG37Joe

iTrader: (2)

mirror eh? something must be deflecting those false laser alerts from the nav screen yeah id def go back to windshield man - lower middle of windhsield gets good all round detection

DiamondGCoupe

iTrader: (4)

If you've had them for more than 2-3 years you might want ot have them serviced that may be why they are malfunctioning. Unless your devices are malfunctioning, there is no such thing as a 'false' laser alert. Laser is not a band like radar so if its going off, its being triggered from a light, not radio frequencies etc.. from the Nav, doesn't work like that. If you have the Tech package its probably bouncing off something in front and hitting you radar detector on the way back. Find the band (you can do this with RX65 maybe not Exscort, V1) that is going off and disable the alert from that frequency.

TerribleONE453

Cousin has one in his STI and it does the same thing... Whenever you would punch the car though which is really weird. I guess its the new BOOST detector. lol It was about 1.5 years old when this started happening

spyderbret

iTrader: (1)

Normally I would agree with you but I was able to replicate the issue any time I point my dector at the Nav screen. Moving it back to the windshield solved the problem. It's definately weird but it happens....

ppc

To shed some light on this subject (pun intended), a laser signal (beam) is a highly focused beam of strictly polarized light of a constant wavelength. When sunlight which is mostly non-polarized, is reflected, the reflected light becomes mostly polarized which is then falsely identified by the detector as a laser. I'm assuming that laser detectors may primarily be looking for a source of polarized light as there means of detection. I haven't researched that fact so please correct me if wrong.

LCD screens also produce polarized light. Have you ever looked at your LCD watch or other electronic displays while wearing a pair of polarized sunglasses? The image is blacked out. I you take off the glasses and rotate them 90 degrees and back you will see the display fade in and fade out. This is the principle of why the polarized glasses eliminate glare, the reflected light is being filtered out.

http://en.wikipedia.org/wiki/Polarization to learn more about polarization.


PPC - New to the forum, working on the signature line

G37 6MT, IP, Premium Pkg, NO Nav

DetroitG37Joe

iTrader: (2)

yeah as much as i wanted to believe it was the sensor up front from the tech package - im pretty sure its from the nv screen because i have 2 escort x50s in perfect working order bought brand new and both less than 2 years old and both give laser alerts when waving the director in front of my nav screen. however they dont on my windshield thank God...

DiamondGCoupe

iTrader: (4)

Wow that soo weird doesn't do it with my RX65 so I guess that's good.

bfranks

I had the same issue in my 03 Tahoe and 05 G35x. It drove me nuts. I did however find this on the Escort site....so maybe it will help some of your problems.

"New cell phones, new cars with laser adaptive cruise control, and the wind-shear equipment at some major airports can also cause false laser alerts.

If you are experiencing false laser alerts of this type, please call our Customer Service Department at 800-543-1608 and they will give you a repair authorization number and instructions on how to return to us. We will be able to make modifications to your detector that will help."

http://www.escortradar.com/tech-tutorials.htm#t5


I can't say if it works or not.....I traded the 05 in on an 08 G35 6MT (which doesn't have that issue)

SkitzoRabbit

Now its true that LIDAR detectors use polarization as a filter for sunlight the actual detection algorithms in the unit are designed specifically for certain pulse repetition frequencies that the manufacturers of the LIDAR guns use to "gate" the emission and return signals in order to calculate speed. If the LIDAR unit did not have a constant PRF no speed measurement could be made.

Now these LIDAR gun manufacturers pick very specific PRFs in order to keep the laser diode in peak wavelength, peak power, and pulse energy requirements which maximize lifetime and range.

so unless your nav screen or some reflected signal at the correct PRF is incident to the LIDAR detector...no false alarm

Also its is not only that reflected light is partially polarized but it is actually randomly polarized based on the reflecting surface, so the comment about sunglasses is correct but specific to light polarized in an orientation common to road conditions i have no information as the the polarization state of our nav screens nor can i commit lab time to finding out

and I am a physicist and love my new G37, booyakasha