Everyone's Jamming Cell Phones

from the join-the-party dept

Mon, Dec 8th 2003 12:37am — Mike Masnick

Mobile phone signal jammers are illegal in the US, but that doesn't mean they're not used. They're apparently increasingly common, and are expected to spread quite a bit in the near future. The FCC says that using a jammer is considered "theft" of airwaves, because that spectrum has been allocated as property to a commercial entity. The writer of the article wonders, though, about "passive jamming" - such as putting up buildings made of material that block out cell phone signals. While some don't like the idea of having their signals blocked - others think it may become a lot more popular in the future, if only to have areas to "disconnect". The article points to the rise of camera phones as a "bottom up surveillance society" as a reason why we might want areas that have no signal. That makes little sense to me, since anyone using a camera phone can still snap the picture, and then just upload it later when they're in range of a signal. Still, it will be interesting to see if anti-jamming equipment becomes popular. Most people have no idea if a jammer is being used, since it just looks like there's no service. This makes it very difficult to figure out if someone is using a jammer, and means that no one's getting caught using these things right now.

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40 Comments

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Daisy Zhan, 8 Dec 2003 @ 12:37am

Manufacturer of Cell Phone Jammer and Signal Boost
Hello, Thanks for your attention!! We,Shenzhen Asicon Telecom Co.,Ltd as a factroy since 1995,Has passed ISO9002 Quality System and CE etc. Professional manufacture following products: *CDMA 450/CDMA/GSM Repeater *CDMA/GSM/DCS/WCDMA/PCS Booster *CDMA/GSM/DCS Trunk Amplifier *Cell Phone Signal Jammer *Antenna *Passive Devices,such as:Attenuator,Load,Mixer,Combiner,Power splitter and coupler etc. We ensure to offer the best quality and the lowest price to help you to develop your market,Hope to built up long term business relation with you. Welcome to visit our factory and website:www.dzxcon.com or add my MSN ID:mobile77signal@hotmail.com We always care your inquire and at your service! Thank you! Ms.Daisy ------------------------------------------------- Shenzhen Asicon Telecom Co.,Ltd. Mobile:0086-139-23785451 Tel:0086-755-83442503 Fax:0086-755-83445941 E-mail:dzx_daisy@d zxcon.com mobile77signal@gmail.com MSN ID:mobile77signal@hotmail.com Website:www.dzxcon.com
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D1G1T1Z3D, 8 Dec 2003 @ 12:37am

WOW! Careful.
[ link to this | view in thread ]
Jammer, 8 Dec 2003 @ 12:37am

I love one for my automoblie
I would love have cell phone jammer on my car when I drive down the road. I 'm fed up with driver who still on cell phone while driving and don't pay attention on the road. I caught more drivers on cell phone and near miss me careless. It would be nice one for my car to jamming that idiot Cell phone driver to get pay attention ON THE ROAD. NY State is illegal to use cell phone during driving. Therefore SCREW FCC law, it is my safely to drive my car down the road without be hit by careless cell phone driver.
[ link to this | view in thread ]
Freedomseeker, 8 Dec 2003 @ 12:37am

I Agree
I completely agree. Screw those who say one thing then do another. Here's the one I want: http://www.techgadgetz.com/cjama.htm . Even comes with a leather case! HA
[ link to this | view in thread ]
ABDUR RAUF, 8 Dec 2003 @ 12:37am

mobile phone jammers
Dear Sir i want to do final year project on mobile phone jammers. Is it possible for me to do the project. I need some help and guidence. I am doing computer system engineering.
[ link to this | view in thread ]
kishwer B., 8 Dec 2003 @ 12:37am

need guidance
Hello! I am a student of Industrial Elec. Eng. and want to build up a mobile jammer as my final project. Can u plz give me notes and schematics etc about this project??? plz
[ link to this | view in thread ]
Skunk works, 8 Dec 2003 @ 12:37am

Cell phone jammer schematic
Hello, I have schematics for a cell phone jammer. It is quite powerful. Through experiments, I have found that it also affects brain neurological functions. The effectiveness is inversely propotional to brain activity. Basically, if you're stupid enough to think anyone's going to mail you schematics, this gizmo will work on you. Email me for more info.
[ link to this | view in thread ]
Daisy Zhan, 8 Dec 2003 @ 12:37am

Manufacturer of Cell Phone Jammer and Signal Boost
Hello, Thanks for your attention!! We,Shenzhen Asicon Telecom Co.,Ltd as a factroy since 1995,Has passed ISO9002 Quality System and CE etc. Professional manufacture following products: *CDMA 450/CDMA/GSM Repeater *CDMA/GSM/DCS/WCDMA/PCS Booster *CDMA/GSM/DCS Trunk Amplifier *Cell Phone Signal Jammer *Antenna *Passive Devices,such as:Attenuator,Load,Mixer,Combiner,Power splitter and coupler etc. We ensure to offer the best quality and the lowest price to help you to develop your market,Hope to built up long term business relation with you. Welcome to visit our factory and website:www.dzxcon.com or add my MSN ID:mobile77signal@hotmail.com We always care your inquire and at your service! Thank you! Ms.Daisy ------------------------------------------------- Shenzhen Asicon Telecom Co.,Ltd. Mobile:0086-139-23785451 Tel:0086-755-83442503 Fax:0086-755-83445941 E-mail:dzx_daisy@d zxcon.com mobile77signal@gmail.com MSN ID:mobile77signal@hotmail.com Website:www.dzxcon.com
[ link to this | view in thread ]
Daisy Zhan, 8 Dec 2003 @ 12:37am

Manufacturer of Cell Phone Jammer and Signal Boost
Hello, Thanks for your attention!! We,Shenzhen Asicon Telecom Co.,Ltd as a factroy since 1995,Has passed ISO9002 Quality System and CE etc. Professional manufacture following products: *CDMA 450/CDMA/GSM Repeater *CDMA/GSM/DCS/WCDMA/PCS Booster
[ link to this | view in thread ]
alternatives, 8 Dec 2003 @ 3:38am

Blocking signal is fine
To have a 'jammer' broadcasting is, at a min. an unlicensed transmitter.

But nothing says you must allow EM *INTO* where you are. In fact 1.5 years (or so) ago, a Japanese inventer created 'wood paneling' layered with metal/carbon/something else that would 'block' radio signals.
[ link to this | view in thread ]
SB, 8 Dec 2003 @ 6:10am

Wood panels that block EM.
Hideo Oka at Iwate University in Morioka, Japan, worked on the wood panels that block em sinals. http://www.wirelessnewsfactor.com/perl/story/18479.html
This seems a resonable alternative to jamming for restaurants and theaters.
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Al, 8 Dec 2003 @ 7:21am

Correction
"That makes little sense to me, since anyone using a camera phone can still snap the picture, and then just upload it later when they're in range of a signal."

Mike,

Correct me if I'm wrong, but the article said, "Iceberg Systems, is beta-testing a new technology that will remotely turn off the cameras in cell phones." Which should make sense because it�s the camera that is turned off and not the signal that�s blocked off.
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Rebecca Paul, 3 Apr 2007 @ 1:24pm

Questions
Who Exactly did make cell phones? Is he/she alive?
[ link to this | view in thread ]
Lewis, 2 Dec 2007 @ 12:06am

Jammers
Legal or not, they're available from England, easily imported, so I hear. I hear they're great for shutting up dumb, selfish people who have no clue that someone is busing their yak time, so I hear, I hear that.
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velu, 18 Dec 2007 @ 5:48am

FINAL YEAR EMBEDDED PROJECTS
Dear students,

we are developed mobile jammer student project.

mobile jammer kit (INR)=Rs: 5,000/-

with project documentation and PCB circuit diagram

contact
www.ndels.com
nd_lab@rediffmail.com
[ link to this | view in thread ]
c d parmar, 19 Jul 2008 @ 2:25am

antijammer
i want to make a antijammer for mobile (gsm ) or (cdma) for student of engineering , can anyone give me the direction and components availability?
+919824416484
cdp4student@yahoo.co.in
[ link to this | view in thread ]
jena, 29 Aug 2008 @ 8:37pm

The manufacturer of mobile signal booster and jammer
Dear sirs ,

Greetings to you!

Glad to take this opportunity to introduce ourself Shenzhen Asicon Telecom Co,.Ltd as a direct security&telecom factory since 1995, professional produce following products:
*Cellular Jammer
*Wireless Signal Booster and Repeater
All of products have passed CE Certification and ISO 9002

Signal Jammer: It can block mobile signal and not interfere base station, it is available to Classroom, Meeting Room, Bank, Church, Hospital, cinema, Library, Prison, Gasoline station,etc.

Signal Booster: It can pick up signal from base station, then enlarge base station signal in poor signal area, it is available to subway, basement, lift and other poor signal area.

Here I attached catalogue with details as per your request. If necessary, pls feel free to contact us whenever and whatever you want.It's will be great gald to receive your reply.

Best regards
jena

MSN:ascjena0910@hotmail.com
Skype:jena0910
tele:008675583445942
mobile:008615818561923
website :http://www.dzxcon.com
[ link to this | view in thread ]
jeff, 2 Oct 2008 @ 4:35pm

Re: need guidance
i don't need info. regarding a signal jammer.. i just need my cell phone to display no service.. i tried placing it in a microwave, stove etc.. but it still has signal strength.. is there anything i can do besides to drive to a rural area? thank you...
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Frederick VonFlintstone, 3 Oct 2008 @ 6:39am

Re: I love one for my automoblie
I have one and whenever I see someone talking on their phone AND it is affecting their driving, especially driving slow and blocking traffic) I turn it on and point. within three seconds it kicks in. FINALLY, a solution for these morons!

And for any officers out there: Of course since this would be illegal to use one I am joking and would never do this ;)
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Frederick VonFlintstone, 3 Oct 2008 @ 7:00pm

Re: I love one for my automoblie
I have one and whenever I see someone talking on their phone AND it is affecting their driving, especially driving slow and blocking traffic) I turn it on and point. within three seconds it kicks in. FINALLY, a solution for these morons!

And for any officers out there: Of course since this would be illegal to use one I am joking and would never do this ;)
[ link to this | view in thread ]
Frederick VonFlintstone, 5 Oct 2008 @ 11:48am

Re: Jammers are ... AWESOME!
Yep, you can get them from several on-line sources that will deliver it quickly and generically marked on the import postal disclaimer. They usually mark it,"electronic device".
When you order you should request this to simplify your receiving it.
[ link to this | view in thread ]
Derr, 23 Jan 2009 @ 11:45am

Re: Questions
This post is completely off topic and a waste of my time.
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rohan, 26 Mar 2009 @ 2:18am

info...........
m student of Electrical Engg, My Final year Project is on GSM JAMMING & ANTI JAMMING & I WANT complete help about ds project, PLZ GUIDE ME.
[ link to this | view in thread ]
Crystal Tabron, 14 Aug 2009 @ 2:35pm

Cellphones at school
I work in the discipline office at a High School. Repeated Cellphone use during school accounts for 1/2 of my student suspensions. 1st offense is detention, 2nd offense is 1day suspension, 3rd offense is 2day suspension and so on. I would like to know if teachers can legally put a jammer/blocker in their classrooms. would this be considered passive blocking?
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Mike, 15 Apr 2010 @ 9:08am

Re: Cellphones at school
Crystal,

I have designed a cellular phone jammer that will still allow for E911 service. The target was school systems. Unfortunately, it is currently illegal. We are waiting for a new law in the works. If you would like more information, please feel free to contact me.
[ link to this | view in thread ]
Masud Rana Chowdhury, 27 Apr 2010 @ 6:57am

Product Information
Hi

I am Masud Rana Chowdhury Proprietor of MASS Computers, Dhaka, Bangladesh. We are working as a computer supplier company. Now we have some client, who wants to install mobile network jammer in their office for security reason. I am now interested to do the business.

If you have the opportunity to do it, please let me inform.

Masud Rana Chowdhury
[ link to this | view in thread ]
John, 4 Dec 2010 @ 10:00am

Re: Re: Cellphones at school
You should target it to prisons. It should be legal in prisons. The news reports that cell phones in prisons are a big problem.
[ link to this | view in thread ]
patrick peng, 17 Mar 2011 @ 9:56am

high quality jammer
Dear sir,

This is Patrick from Shenzhen Asicon Telcom Co., Ltd.
We are professional manufacturer speciaizing in Mobile repeaters and jammer since 2001. Our products are exported to worldwide and have a good reputation in this field in China.

If you have interest to our products, pls do not hesitate to contact us.

email:patrickpeng1019@gmail.com
Skype:Patrick-dzxcon
mobil:86 15019489796
[ link to this | view in thread ]
vinay, 10 Apr 2011 @ 10:48am

jammer
i am a student from Bangalore i am doing my final year project about mobile jammer so can any one help me out...
my mail id is zoom2vinymail@gmail.com
[ link to this | view in thread ]
Gurivi, 13 Jun 2011 @ 10:02pm

Need signals to cell
Dear sir, Ian Gurivi from India. In our college the management has kept jammers in the campus. And we are not getting signals to cellphones.please suggest me what to do.any cellphone avaliable? Or any softwares to get signals? Or any thing please. Give me ur suggestion sir
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kale, 31 Jul 2011 @ 9:35pm

Cell phone jammer is an interesting and helpful device when we don't want to be bothered by the cell phone noise. I just bought myself a cell phone jammer the other day from http://www.jammerall.com/ ,it is working great and BTW, it's legal here in my country.
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angellily, 28 Aug 2011 @ 7:25pm

Jamming devices
I totally agree with the article's opinion. i think that everyone needs a cell phone signal jammer during our daily life.It is usually used in those places where noises are banned or silence is needed for a moment, such as churches, mosques, libraries, movie theaters, meeting rooms, and other places. it can benefit us a lot. A friend of mine who is a teacher was once annoyed by his students texting short messages during class, and later he bought a portable cell phone jammer, then all the students were confused that their cell phones cannot receive any signals even if it was the most advanced one.my friend said he bought it from online [URL="http://www.jammerall.com"]http://www.jammerall.com[/URL] , and I checked some sites about that certain item. It's so funny that I'm thinking of purchasing one as well.
[ link to this | view in thread ]
angela, 28 Aug 2011 @ 7:34pm

cell phone jammers
I totally agree with the article's opinion. i think that everone needs a cell phone signal jammer during our daily life.It is usually used in those places where noises are banned or silence is needed for a moment, such as churches, mosques, libraries, movie theaters, meeting rooms, and other places. it can benefit us a lot. A friend of mine who is a teacher was once annoyed by his students texting short messages during class, and later he bought a portable cell phone jammer, then all the students were confused that their cell phones cannot receive any signals even if it was the most advanced one.LOL...BTW,my friend said he bought it from online [URL="http://www.jammerall.com"]http://www.jammerall.com[/URL] , and I checked some sites about that certain item. It's so funny that I'm thinking of purchasing one as well.
[ link to this | view in thread ]
angela, 28 Aug 2011 @ 7:35pm

cell phone jammers
I totally agree with the article's opinion. i think that everone needs a cell phone signal jammer during our daily life.It is usually used in those places where noises are banned or silence is needed for a moment, such as churches, mosques, libraries, movie theaters, meeting rooms, and other places. it can benefit us a lot. A friend of mine who is a teacher was once annoyed by his students texting short messages during class, and later he bought a portable cell phone jammer, then all the students were confused that their cell phones cannot receive any signals even if it was the most advanced one.LOL...BTW,my friend said he bought it from online [URL="http://www.jammerall.com"]http://www.jammerall.com[/URL] , and I checked some sites about that certain item. It's so funny that I'm thinking of purchasing one as well.
[ link to this | view in thread ]
Alex (profile), 7 Dec 2011 @ 5:41am

R U kidding? cell phone jamming is dangerous! When I contacted the manufacturer of cell phone jammers http://www.jammer-store.com/ I was told that all types of jammers block absolutely all phone calls so you won't be able to call 911 when you need this. And that damn risky if you ask me.
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[ link to this | view in thread ]
Deejay, 1 Aug 2012 @ 7:36am

Need Help!!
I work in a decent size building. Theres a co-worker who is CONSTANTLY on his cell phone. He�s good about hiding it from the bosses/ managers. So I wanted to know what the best way to block the cell signal in a big open space. Does anyone have any suggestions??
[ link to this | view in thread ]
MrItaly, 6 Dec 2014 @ 2:37pm

Re: Re: I love one for my automoblie
If you have one already could you tell me where to get one to for THE EXACT SAME REASON?
[ link to this | view in thread ]
Andrew Mimnagh, 11 May 2016 @ 11:17am

Re: Manufacturer of Cell Phone Jammer and Signal Boost
We are interested in your cell phone jammer.
[ link to this | view in thread ]
vivian, 1 Jun 2016 @ 7:41pm

cell phone jammers
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