Gizmodo: jammers

Laser Star Allegedly Turns Your Clunker Into Invisible Asphalt Phantom

Jack Loftus — Sun, 27 Jul 2008 17:00:00 EDT

The Laser Star is new to the States, but it's already made a name for itself in Europe as a cheap, effective way to jam police speed trap lasers. These demonstrations from Laser Jammer Tests show why. No fewer than four police-issue laser detectors were foiled by the Laser Star without so much as a hiccup. Regardless of your views on this kind of tech, it's still amazingly cool how the Audi S4 S-Line A4 in the videos is effectively invisible to the laser detectors. And when you aren't fighting the man, Laser Star's sensors help park the car too. Personally, I can't wait to get one and recreate my favorite Vin Diesel scenes from The Fast and the Furious.

Top Speed tested out the parking sensors that come with Laser Star, and in a word they worked perfectly. The tester was able to detect cars and other objects at roughly 20 feet, and after some tweaking got the system tracking objects within a few inches. Good to know if you're evading the police and have to park in an alley in a hurry.

Lastly, some wise words from the testers themselves:

Laser jammers are built to jam police laser guns, but they're not built for you to be stupid about it. If you're targeted by a police officer the buzzer inside the car will alert. Slow down, drop to the posted speed limit, and then shut off jammer. Once you turn off the jammer the officer will instantly get a reading. He will then see you're driving at the posted speed limit. No suspicion will arise if you use a laser jammer correctly. Never jam a police officer all the way to the gun. Slow down to the speed limit, then turn off the jammer.

[Laser Jammer Tests]

Palm-Sized Cellphone Jammer Gives Public Gabbers the Smackdown

Charlie White — Thu, 27 Sep 2007 11:00:00 EDT

This is not the first cellphone jammer on the market and won't be the last, but this $166 model is small enough to discreetly carry anywhere. It's powerful enough for personal use, slam-dunking GSM calls within about a 30-foot radius. That might be just the range of earshot in a movie theater, unless there's yelling involved. But there usually is. Don't get caught, this can't be legal. [Brando]

Anti-GPS Tracking Devices Plugs into Cigarette Jack and Loses You Your Tail

AddyDugdale — Tue, 31 Jul 2007 08:12:32 EDT

If you're important enough to have one, that is. This is a small jamming device that you plug into the cigarette lighter of your car and it blocks any GPS tracking devices that might be trained on your vehicle. It's probably illegal, but hey, so is sex with your sister.

Working Band: L1 system 1450 to 1600Mhz
Signal Jamming Power: 200mW
Antenna Impedence: 50 w
Coverage: 2-4 M
Power supply: 12V
Currency: 200mA
Dimensions: 20x70x25mm (LxWxD)

The Anti-GPS tracking device hasn't been priced yet, but should be available soon. [Chinavision via NaviGadget]

GPS, GSM Cellphone Jammers Hit Mainstream, Calamity Ensues

Gizloco — Fri, 17 Nov 2006 12:35:58 EST

Don't get too reliant on that GPS receiver, Magellan, since companies are now starting to release devices that locally block GPS signals. Detectnu's device not only block GPS signals within a 50-meter (164-foot) radius, but also GSM cellphone signals in a 20-meter (65-foot) radius. Another such device—the RJ-G1575 GPS jammer from Radixon Hadrian—blocks GPS signals in a 50-kilometer (31-mile) radius. Now, I can completely understand cellphone jammers (hint: people have no concept of tact in New York City and love to yap about God knows what quite loudly), but blocking GPS? What good does that do, other than give mischief makers a rise?

Ok, so Radixon Hadarian claims that the device can be used to thwart GPS-aided terrorist attacks. Yes, and I'm Jack Bauer. Let's leave the crime fighting to the professionals and not to gadget geeks. – Nicholas Deleon

Detectnu GPS/GSM Jammer [Alibab.com]

Radixon Hadrian RJ-G1575 [Grove Enterprises via The Red Ferret Journal]

NaturalNano Develops Cellphone-Blocking Paint

Charlie White — Thu, 02 Mar 2006 12:18:24 EST

NaturalNano has used nanotechnology to develop a type of paint that stops cellphone signals. It's done by blending particles of copper that are inserted into nanotubes, and then mixing and suspending these tiny particles into a can of paint.

NaturalNano's idea is to completely block cellphone signals with this paint, and then provide a radio filtering device that will allow wireless signals to pass through only when they re appropriate. Using this system, a theater owner could allow cellphone signals before the show or during an intermission, but completely block them during the movie. At the same time, that theater owner could still allow emergency radio communications to get through. While jamming of cellphone signals has been ruled illegal by the FCC, it's not a crime to passively prevent signals from passing through, which is exactly what NaturalNano's paint does.

Depending on your point of view, the ability to shut down all wireless communications could either be a nightmare or a dream come true, but here's hoping every theater and concert hall in the world is soon painted with this stuff.

Slapping on a coat of silence [Newsday]

Cellphone Jammers on the Way?

Travis Hudson — Tue, 31 Jan 2006 09:15:52 EST

This is a little Japanese gadget that will make living life day-to-day so much nicer. It's a simple device with an on-button. It has two modes, one mode will disable all calls within a area for 70 seconds, the other will fade away the call with "natural atmosphere" to assist ending that call with Aunt Rita. It retails for $71 or so and should be coming to the U.S. once the FCC passes an act that allows cellphone jamming in movie theaters. Hooray!

Cell Phone Jammer [RedFerret]

Cellphone Bomb Jammer

johnb — Fri, 12 Aug 2005 11:42:42 EDT

The world may never know if there are or aren't cell-phone bomb jammers out there, but DefenseTech has stumbled on a patent that may shed light on the subject:

The device includes a transmitter that mimics a cell phone base station and a metal horn to concentrate the signal from a 10 milliwatt power source in a single direction. Scanning... a concealed phone... with the tool... tricks it into thinking it is in range of a new network base station and blocks it from any genuine stations in the vicinity.

It seems that the overhead would be a little high to create a full cellphone jammer and, according to folks in Iraq, most IEDs use cordless phones instead of relying on Iraq's spotty cell network.

Phone Bomb Interceptor on the Line? [DefenseTech]

Wireless Jammer

Travis Hudson — Thu, 28 Jul 2005 10:31:36 EDT

For a small fee of $445, you too can annoy thousands of people on a daily basis. This little device has the potential to jam wifi and Bluetooth signals. I predict those Amish are behind this, trying to put a halt to the Google takeover of the world. Unfortunately this gadget will start popping up all over the place and, well, sorry Mr. Company Tech guy—have fun troubleshooting when one of these devices is in the area.

Luddite invention will jam Bluetooth, wi-fi, vid cams [The Inquirer]