Radar/Laser jamming - LotusTalk - The Lotus Cars Community
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post #1 of 34 (permalink) Old 12-31-2004, 10:48 PM Thread Starter
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Radar/Laser jamming

Happy New Year everyone!

I would like to get a radar/laser jamming detector for my elise.

I anyone familiar with the latest and greatest one out there?

I have been considering the Bell RX-75 with their M-20 jammer and Escort's SR-7 with the ZR-3 jammer.

Thanks for your help,

mr t
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post #2 of 34 (permalink) Old 12-31-2004, 11:11 PM
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I think jammers are illegal in most/all states. From what I've read, cops know when they're being jammed by the way the radar antenna acts up. If you're the only one on the road, for example, they'll most probably pull you over and ask for it. I believe the offense is a felony and has a big ass fine, maybe a couple grand.

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post #3 of 34 (permalink) Old 12-31-2004, 11:26 PM Thread Starter
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legal laser jammers

Check out www.speedzones.com. They say that laser jammers are legal. Only radar jammers are illegal.
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post #4 of 34 (permalink) Old 12-31-2004, 11:36 PM
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Re: legal laser jammers

Quote:
Originally posted by mr t
Check out www.speedzones.com. They say that laser jammers are legal. Only radar jammers are illegal.
Laser jammers are illegal in some states, such as California (state law, not federal).

Radar jammers are illegal because you are transmitting a radio (really radar) signal without a FCC license. Some states have explicit laws against them (so the state can charge you).
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post #5 of 34 (permalink) Old 01-01-2005, 06:06 AM
 
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I've been using a Pfazer jammer for years with no police issues. It does sem to give you that extra split second to slow down when you approach a trap. Works better on laser than radar.
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post #6 of 34 (permalink) Old 01-01-2005, 06:34 AM
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Re: Radar/Laser jamming

Quote:
Originally posted by mr t
Happy New Year everyone!

I would like to get a radar/laser jamming detector for my elise.

I anyone familiar with the latest and greatest one out there?

I have been considering the Bell RX-75 with their M-20 jammer and Escort's SR-7 with the ZR-3 jammer.

Thanks for your help,

mr t
The latest and great is LidaTek LE-30, got one for my A4 a month ago (which I'll be moving to the Elise in a week or so when it shows up).

http://www.audiworld.com/news/03/lidatek/content.shtml

LidaTek is the only one that uses a real laser, the rest use LEDs.

I've spoken to numerous Audi enthusiast who swear by the unit.

I'll make sure to post a write-up when I do my install.

LSS / Hardtop / Saffron Yellow
I have my baby!!!
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post #7 of 34 (permalink) Old 01-01-2005, 07:54 AM
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i would assume they use diode lasers- in other words LEDs. not all LEDs are lasers but all diode lasers are LEDs. i would be very surprised that anyone used anything other than a laser diode for this applicaion

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post #8 of 34 (permalink) Old 01-01-2005, 08:10 AM
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Quote:
Originally posted by LotusLust
i would assume they use diode lasers- in other words LEDs. not all LEDs are lasers but all diode lasers are LEDs. i would be very surprised that anyone used anything other than a laser diode for this applicaion
One of the nice things about the LidaTek unit is that it uses:

"indium gallium arsenide laser (about 100x more powerful than LED based units!) "

This means the transponder is much smaller and one should easily be able to mount it between the grills on the front of the Elise.

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post #9 of 34 (permalink) Old 01-01-2005, 11:41 AM
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One thing I've been wondering is what the penalty is in Claifornia if you are caught with a laser jammer. Sometimes the penalty is worth the risk, for example it is a $10.00 fix it ticket for having no front plate, worth the risk compared with speed/red light cameras.

Anyone been caught in California, or know what the fines/penalty might be?

I was driving on 80 between San Francisco and Sacramento the other day and the CHP was out using lasers, I recieved no warning from my Passport whatsoever, very sobering. Thankfully I was not speeding at the time.
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post #10 of 34 (permalink) Old 01-01-2005, 12:52 PM
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Quote:
Originally posted by TheProton
One thing I've been wondering is what the penalty is in Claifornia if you are caught with a laser jammer. Sometimes the penalty is worth the risk, for example it is a $10.00 fix it ticket for having no front plate, worth the risk compared with speed/red light cameras.

Anyone been caught in California, or know what the fines/penalty might be?

I was driving on 80 between San Francisco and Sacramento the other day and the CHP was out using lasers, I recieved no warning from my Passport whatsoever, very sobering. Thankfully I was not speeding at the time.
It is pretty much impossible to see that I have the LidaTek installed on the A4.

The only way is to open up the hood and look at the cables on the grill.

I didn't install the warning light that came with the LidaTek inside the cabin. All you see is a small switch in the footwell. Very stealthy.

If I get hit by laser I get an audible alarm, and the system shuts itself off after a few seconds so that cop doesn't know for certain that he is being jammed.

LSS / Hardtop / Saffron Yellow
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post #11 of 34 (permalink) Old 01-02-2005, 08:36 AM
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ive been using the sr7 with the zr3 for about a year now...im VERY happy with it. i have yet to put it on my elise cause im still scratching my head over the install.
but keep in mind, that unit is NOT a laser jammer, its a laser SHIFTER.
if laser jamming is illegal in ur area and u get stopped by the cops, they WILL look under ur hood and search.
anyway, i havent used the other products so i cant comment, but my buddy has the k40 and i thing the escort one is much better.
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post #12 of 34 (permalink) Old 01-02-2005, 01:29 PM
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The ZR3 is a jammer. Calling it a "shifter" is just a marketing gimmick by Escort. Here is Escort's description of the ZR3:

"Introducing the new Laser Shifter ZR3 - the ultimate laser (LIDAR) defense system from Escort. The new Laser Shifter ZR3 is equipped with a total of three (2 front, 1 rear) laser "Shifters." These highly sensitive transceivers detect the presence of LIDAR, and respond with a pulsed laser signal in order to "Shift" or confuse the targeting LIDAR gun."

The trasceiver unit they refer to provides both detection of the incoming laser pulse, and the active transmission of another light pulse to confuse the LIDAR gun. This is jamming.

Dictionary Definition:
"n : deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems "

The act of sending out a confusing pulse back to the LIDAR gun causes the gun to think the reflected pulse is "shifted" in time from the true reflection. When combined with multiple pulse readings where the time shifts do not make for a consistent speed reading, the gun will respond with a "no speed" or error result. It is this act of shifting the pulse reading in time that Escort refers to as a "shifter". But, that is just a jamming method. It is illegal in the states that have laws against LIDAR jammers.

(By-the-way, one of my areas of career expertise is electronic warfare for the military, which includes signal detection and jamming.)
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post #13 of 34 (permalink) Old 01-02-2005, 04:46 PM
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It's a sad day when our government is able, and chooses, to outlaw a blinking light bulb. My hunch is that you could successfully challenge this in court if it ever came to that.

'05 Elise, Magnetic Blue / Biscuit / Hardtop
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post #14 of 34 (permalink) Old 01-02-2005, 05:56 PM
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they've done pretty well at preventing us from exploiting other radiation that bombards us continuosly on our own property as well. i feel i should have every right to interpret, decode, and use for my own purpose ANY electromagnetic radiation that impacts my property. and i feel i should have this right without paying a fee. doing so without paying for the services of certain satellite based company signals has been made unlawful. such are the sacrifices of living in a society.

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post #15 of 34 (permalink) Old 01-02-2005, 08:51 PM
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Quote:
Originally posted by LotusLust
they've done pretty well at preventing us from exploiting other radiation that bombards us continuosly on our own property as well. i feel i should have every right to interpret, decode, and use for my own purpose ANY electromagnetic radiation that impacts my property. and i feel i should have this right without paying a fee. doing so without paying for the services of certain satellite based company signals has been made unlawful. such are the sacrifices of living in a society.
All you have to do is make sure that your electromagnetic radiation does not extend beyond your property lines or into airspace that might have an aircraft going through it. Good luck on that (and let me know how - it would be worth a lot of money)!

Yup, if only each of us had his/her own planet. Sigh.
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post #16 of 34 (permalink) Old 01-03-2005, 05:26 PM
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Have you thought about this?

I was told this by an officer who is a friend of mine.

In order to be hit with the laser, it has to be aimed at a flat surface of your car (ie. license plate) If you do not have a plate on the front of the car, which most of us don't, then it will be really hard for the laser to be aimed. Unless they hit you from the rear. However, our cars give a huge radar signature due to our front firewall.

Given this information a radar jamming device would be more effective for us than a laser jamming device. So now you just need to determine if you are willing to take the risk with a radar jamming device.
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post #17 of 34 (permalink) Old 05-30-2005, 06:49 AM
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Escort Solo2

I've seen them advertised as "the best of the cordless " but , is the thing any good? Anybody own one or know someone who has?
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post #18 of 34 (permalink) Old 05-30-2005, 05:15 PM
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Quote:
Originally Posted by scottyb
I was told this by an officer who is a friend of mine.

In order to be hit with the laser, it has to be aimed at a flat surface of your car (ie. license plate) If you do not have a plate on the front of the car, which most of us don't, then it will be really hard for the laser to be aimed. Unless they hit you from the rear. However, our cars give a huge radar signature due to our front firewall.

Given this information a radar jamming device would be more effective for us than a laser jamming device. So now you just need to determine if you are willing to take the risk with a radar jamming device.
Regarding the radar signature. A buddy of mine is a county deputy and he was shooting my car for kicks (and so that I could get a feel for how well my install of a V1 was working) and he told me that he could not get a lock on my vehicle until I was right on top of him. Someone else may want to experiment to confirm this. His comment to me was that "the elise was invisible to radar until I was on him." Any cops out there?
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post #19 of 34 (permalink) Old 05-31-2005, 08:28 AM
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Quote:
Originally Posted by reganfin
His comment to me was that "the elise was invisible to radar until I was on him." Any cops out there?
there are several owners here who have experienced the same result as you have.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

'07 Lotus Exige S310


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post #20 of 34 (permalink) Old 08-30-2005, 10:53 PM
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Quote:
Originally Posted by reganfin
Regarding the radar signature. A buddy of mine is a county deputy and he was shooting my car for kicks (and so that I could get a feel for how well my install of a V1 was working) and he told me that he could not get a lock on my vehicle until I was right on top of him. Someone else may want to experiment to confirm this. His comment to me was that "the elise was invisible to radar until I was on him." Any cops out there?
I'm an ex-cop... it can depend on your paint... metallic and lighter paints are more reflective. Darker paint job, fiberglass clamshell, small frontal surface area = less reflectivity = harder for the radar unit to get a lock on your vehicle - espescially if there are other cars in the area. Radar units are designed to lock onto the strongest returning signal. Slipping through the "radar" shadows of other cars - especially large commercial trucks - has helped keep me ticket free.

- Rob O'
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