One of these days, we'll reach a point where we won't be able to out-do ourselves anymore. But we're definitely not there yet. This was possibly the most thorough and conclusive laser jammer test ever undertaken. We tested many of the top laser jammers available on the market today against the laser guns used in the US.




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The Test Course






Straight-stretch anyone? Out in the Arizona desert, we had 5 miles or more on our test road. But, we only used a 2000-foot section of it for the laser test course.

Why 2000 feet? Tickets have sometimes been issued at distances as long as our test course. If we had used a 1000-foot course, it would also hide the shortcomings of jammers which punchthrough at distances greater than 1000 feet.





The Laser Guns





The following laser guns were used in this test:

  • LTI Ultralyte 100 LR, 100pps
  • LTI Ultralyte 100 LR, 125pps
  • LTI Marksman, 125pps
  • Kustom ProLaser III, 200pps
  • Kustom ProLaser II, 238pps
  • Kustom ProLite III, 200pps
  • Stalker LZ-1, 130pps
  • Laser Atlanta SpeedLaser, 238pps (normal mode), 68pps (Stealth Mode)
These guns represent every type of handheld laser gun on the IACP Approved List. Although the IACP list includes a few variations to some of the guns (with different packaging, features, or attached cameras), as far as the jammers are concerned these guns are identical to guns which we used in the test.

All laser guns were checked for proper operation prior to the test. We also did some "base runs" with no jammer as a control: all of the laser guns had no trouble clocking the speed of the test vehicle at the full length of our 2000-foot course.





The Test Vehicle




Look familiar? It should.

The test vehicle we used is very similar to the one from our April, 2006 Laser Jammer Test.

But there's a couple of differences: this vehicle has a chrome grille, but no front plate (since they aren't required in Arizona). With it's white color, flat front, large headlights, and chrome grille, it made a very easy target for the laser guns. It also made things very difficult for the jammers.




We obviously can't test using every type of vehicle that is out there. We stick to using a "worst case" vehicle, which is a signature method for the Guys of LIDAR. The premise is this: if the jammers are able to perform well on our worst case vehicle, then they should also perform well (or even better) on smaller, darker vehicles which are more difficult laser targets.






The Jammers



The following jammers were tested:
  • Blinder M40 - Retail version, provided by RadarBusters
  • Laser Defender - Retail version, provided by Laser Defender
  • Antilaser - Manufacturer sample, provided by Antilaser
  • Laser Pro Park - Retail version, Provided by RadarBusters
  • Laser Interceptor - Prototype/Development Unit, provided by Laser Interceptor
  • Escort Shifter ZR3 - Retail version, provided by RadarBusters

The jammers were mounted to provide the best performance, as determined by the Guys of LIDAR. We didn't want to cut into the grille of the test vehicle and were not permanently installing the jammers, so we attached brackets to the grille and mounted the transponders on the brackets. Bubble levels were used to ensure that the transponders were mounted level.




The laser jammers were installed using Cheetah's Laser Jammer Interfaces to save time. Big thanks to Cheetah for providing these for our use at the test!

The Laser Jammer Interface has three components; a LASERnode wireless transmitter, an engine running sensor and a cable to connect to the jammer's control box. Power is supplied by connecting the "engine running" sensor directly to the battery terminals. This makes hardwiring easy and automatically switched the jammers on 3 seconds after the Jeep's engine was started. The wireless transmitter plugged directly into the jammer's control/junction box.

All the jammer alerts were then received wirelessly on the GPSmirror, which gave voice and audio alerts whenever the jammers fired. For good measure, the Vizalert receiver was also positioned in the speedometer dials, like a remote display.



The Blinder was tested with four transponders. The Escort Shifter ZR3 was tested with three transponders. All the rest of the jammers were tested with two transponders. To keep things consistent, all two-transponder jammers had the transponders mounted in the same locations.




Safety First...

The Guys of LIDAR obtained some special infrared laser protection safety glasses, and made them available to the officers shooting the laser guns. These are the same type of glasses which are used for protection in the lab when developing laser products. The darkest of these will protect the eyes from up to "Class III" infrared laser emissions at distances of six feet away or more.

But there were no "Class III" laser products at our test. The laser guns are all "Class I" laser products, and are generally considered safe under normal operation. The laser jammers we tested are all classified as "Class I" or "Class IM" laser products and are also generally considered to be safe under normal conditions. However, hundreds of laser shots in a day against laser jammers definitely isn't normal: that's a lot of infrared exposure.

Are the glasses absolutely necessary? Maybe not.

Reasonable? Definitely, especially when it comes to protecting your eyesight.

The glasses had some good contrast similar to shooting glasses, which didn't hinder targeting. They also provided some relief to the shooter from the blazing Arizona sun.






Test Methodology

All else being equal, how to the jammers stack up against each other in terms of performance? This is what we set out to determine. We tested the jammers by exposing each one to a specific set of controlled conditions.

Testing proceeded as follows:
  • All guns were set to "single shot" mode.
  • A cone was placed at 2000-feet.
  • The test vehicle accelerated to 40 MPH, and counted down over the radio as it approached the 2000-foot cone: 3...2...1...Shoot. This ensured that the vehicle was first targeted at 2000 feet, and at a consistent speed.
  • Police officers shot the laser guns, targeting the vehicle continually until a speed reading was obtained, or the vehicle traversed the entire course with no speed reading (JTG).
  • "Center of mass" was targeted, three shots per gun per jammer
  • The passenger side headlight was targeted, three shots per gun per jammer
  • The jammers were tested in the following order: Day 1: Blinder, Laser Defender, Antilaser. Day 2: Laser Pro Park, Laser Interceptor, Escort Shifter ZR3


The officer targeted from the far side of the road, opposite the side used by the test vehicle .










NOTE: All results are in feet.






Blinder M40

The Blinder M40 was an average of 83% effective against laser guns used in the USA.
(See how this was calculated)







Laser Defender

We attempted to test this jammer, but unfortunately we were unable to get any conclusive data because of persistent false alerts, possibly from sunlight. So we made the tough call to cancel the test of the Laser Defender.








Antilaser G8

The Antilaser G8 was an average of 88% effective against laser guns used in the USA.
(See how this was calculated)









Laser Pro Park

The Laser Pro Park was an average of 85% effective against laser guns used in the USA.
(How was this calculated?)









Laser Interceptor

The Laser Interceptor was an average of 96% effective against laser guns used in the USA.
(How was this calculated?)




The Laser Interceptor was a "development unit", which could be updated with new software in the field. After the "official" test, the developer of this jammer tweaked the software to eliminate the punchthroughs against the Stalker (as reported by GOL members). But since the official test was already complete, this could not be included in the results.

The Guys of LIDAR look forward to testing a retail sample of this jammer in the future.







Escort Shifter ZR3

The Escort Shifter ZR3 was an average of 80% effective against laser guns used in the USA.
(How was this calculated?)








Results Summary




JAM CODES:
  • No jammer caused an E07 jam code on any LTI gun
  • Every jammer caused E04 jam codes on the Stalker LZ-1
  • Every jammer caused JA3 jam codes on the Laser Atlanta






Single-Head Test




We decided to try some single-head units on a smaller vehicle (a Dodge Charger) to see what would happen. A few of the more difficult-to-jam guns were selected for this test. We only did one test run per gun/aiming point. Please note: this was an "unofficial" test, and it did not have the strict controls of the regular tests. Some GOL members operated the laser guns.





Extreme Worst-Case: Roy's RV




Roy's RV represents an ultimate worst-case vehicle. It wouldn't be practical to use for a comprehensive test, but we decided to try a few test runs with one of the jammers. Four Laser Interceptor heads were installed.

None of us thought it would be able to JTG, especially run after run, with all different laser guns.

We were wrong.

Here's the videos:








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