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Jon Paul
Joined: 25 Jun 2007
Posts: 1
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 25 Jun 2007 14:57 Cell Signal Jammer |
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Please, I need the cicuit diagram for Cell Phone Jammers.
Is there anyone who can be of help to me, I will be very grateful if there is any helper out there.
Thanks
"Jay Pee"
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kishore2k4
Joined: 17 Jun 2006
Posts: 247
Helped: 22
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| 25 Jun 2007 15:12 Re: Cell Signal Jammer |
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http://www.cs.utah.edu/~chrisb/writing/jammer/circuit%20drawings/celljam5.pdf there are many circuits that are floating on the web. If you are new to RF circuity then I strongly suggest you stay off building such things as it is not easy to work with and even the slightest change in the board that you use will tune-out the device etc.
I am no expert in RF electronics, maybe others can help you out.
I thought of one simple way when I first thought of building a GSM jammer some years back. Just get a PA(Power Amplfier) in the required frequeny range and just feed noise into it while sweeping its frequency. I've not tested this but common-sense suggest that it would work but please don't ask me how to get it to work.
Also the power output of the amplifier plays a significant role in determining the jamming radius. And this is illegal in many countries so keep the jammer to your self or make the jamming radius confined to your room.
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john cooper
Joined: 28 Dec 2006
Posts: 10
Helped: 2
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| 02 Mar 2008 12:28 Cell Signal Jammer |
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SORRY I CANT FIND IT OBJECT WASNOT FINDED
PLEASE HELP ME
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polo367
Joined: 16 Sep 2001
Posts: 17
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| 11 Mar 2008 16:50 Re: Cell Signal Jammer |
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try this rf jammer.
http://www.ladyada.net/make/wavebubble/
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PICAXE_Kiwi
Joined: 18 Sep 2008
Posts: 5
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| 10 Oct 2008 1:50 Re: Cell Signal Jammer |
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| Hmm, slightly illegal, is it not, unless you have a pretty low powered one!
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b4bb4ge
Joined: 28 Feb 2008
Posts: 97
Helped: 15
Location: Colorado, USA
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| 10 Oct 2008 7:13 Cell Signal Jammer |
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I have a feeling none of these will work, I have tried to jam a cell phone before with 3 watts continous sweep out of a horn antenna 10 feet away from my cell and it still would not drop the call I think they have some very sophisticated frequency hoping in the cell network to keep from jamming/interfeering with many cellphones around.
But if you get one of these to work please let me know I would love to know how to do it (just for reference of course).
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