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Modifying a Cheap Portable Cellphone Jammer

Step 5Have fun, but not too much!

Just remember, in most places actively blocking any kind of communications is illegal! so if you plan on using this device make sure you check your local laws and regulations.

EDIT:

Thanks to the guys over at PLA for the method, especially NAK (see you in class dude)

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7 comments

Sep 29, 2011. 8:30 PMJKPieGuy says:

Ha this would be funny to use in school or around friends. Guess who's not getting that "Important" text now HMMMMM...???!!! (But still it shouldn't be used for long range jamming because it can be dangerous, like say some one is trying to call 911.)

Jul 27, 2010. 4:15 AMjmnemonik says:

Hy everybody, I have little problem I would like to jamm 30 to 60khz zone frequencies, and I'm out of ideas how I can do this I bought this device but its not good for that. I know maybe it will sound crazy or maybe even imposible if you can just guide me to the right direction.. Thank you.

Apr 26, 2009. 3:41 PMitsachen says:

Awesome instructable man. Does DealExtreme allow people from the US to buy it?

Feb 10, 2009. 5:59 AMelite14 says:

Why must fun things be so illegal. In my class one student texts all the time and would love to have one to tick him off with. Then he would be angry with his phone. Pretty much I would use it on only him.

Feb 27, 2009. 5:48 PMKush_Slayer says:

lol in my language arts class almost half the class texts and it would be hilarious for them to not be able to

Oct 20, 2008. 8:28 AMgeneral-Insano says:

lol 4chan ftw & nice job

Oct 28, 2008. 9:40 PMSERPENT7 says:

FYI, in the US, using one of these devices carries a $15K fine.

Feb 23, 2009. 2:58 AMR4Man18 says:

nuh uh its only 11k. and its more than just using. quite a few problem around it from what I read. owning one, buying one ect.

Nov 2, 2008. 9:40 PMlorrwill says:

Which really, really bites. Why oh why must we suffer with people shrieking into their cellphones in the laundromat (not to mention the movies)? Is there no justice in the world?