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mobile (cell) phone jamming

I want to build a mobile phone jammer

  • short range (not more than 5 yds)
  • handheld, small
  • battery powered

so that when I'm on the bus/train and some idiot start loudly talking about his business, I can press a button and cause just enough interference to disconnect him mysteriously.

It would be better if it had some directionality but not too much. I don't want to aim it at someone but it would be nice to be able to disconnect the loud phone user in front of me without affecting the text messager behind me.

Can anyone point me in the right direction for designing this?

Reply to
Tarapia Tapioco
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The site gets really slow at times. Suggest you save the schematics so you won't have problems if the site goes down.

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What's the problem? If someone annoys me too much with a phone, I just offer to jam it somewhere. Manually. ;-)

--
Paul Hovnanian     mailto:Paul@Hovnanian.com
note to spammers:  a Washington State resident
------------------------------------------------------------------
On a clear disk, you can seek forever.
Reply to
Paul Hovnanian P.E.

Whenever I try to hit that site i get:

Forbidden You don't have permission to access /PROJ/mil/celljam on this server.

What's the story?

--
Peter E. Lowrie
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Reply to
Peter Lowrie

When someone annoys me by yakking on a cell phone in a restaurant, meeting etc., I just join right in the conversation "Sure thing Bill. Friday's great. Just don't bring that whiny annoying wife of yours..." etc. I get some priceless looks.

Bob

Reply to
Bob Stephens

Hey that's pretty good - worth a try.

Now, what is your technique for getting the woman on the road in the SUV who is ambivalent about which lane she intends to use?

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snip

I know the site is slow - sometimes there's just a blip every few seconds on the download meter - othertimes it works normally.

systems. Prevents the

jam

required.

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Links to a couple of schematics on the site.

Try the main site

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and follow the link to projects then scroll down to cell phone jammers

Have any special software running? I can access it with web washer running, set for maximum privacy - no cookies, no web bugs, no refferer. I'm in the US

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Bigger SUV with snow blade on front.

--
  Keith
Reply to
Keith R. Williams

Well that wouldn't work for long . . . The whole idea of SUV's seems to be the "i'm bigger and badder don't mess with me," syndrome. Whimps with a need to assert themselves?

Doubtless that will draw a firestorm - but rationalize all you want - you know, deep down, I'm right about this . . .

So soon we are all trucking around in 6 ton, gas guzzling SUV's with snow plows - what prevents someone with a snow plow from getting a cell phone?

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systems. Prevents the

small jam

be required.

It still wont let me in, i have a feeling it's being blocked by internal affairs. Howsabout emailing the png files to me...that'd be appreciated.

--
Peter E. Lowrie

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Reply to
Peter Lowrie

systems. Prevents the

small jam

be required.

Another idea would be to post the images onto alt.binaries.schematics.electronic

--
Peter E. Lowrie
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Reply to
Peter Lowrie

I'll assume that you realize doing something like this is a non-trivial violation of federal law. Last time I checked, malicous interferrence with federally licensed communications could earn one a $10,000 fine, 10-years in prison, or both.

Cell phone jamming now already takes place in numerous facilities like hospitals, theatres, restaurants, and other venues (quite thankfully), but there it's confined to private property. Even then, it will likely be shown by the ACLU or some other leftist group to be an encroachment on existing communications law.

Harry C.

Reply to
Harry Conover
[snip]

I think there's already been a court determination that *jamming*, even on private property is illegal; but Faraday screening is legal.

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
I love to cook with wine.      Sometimes I even put it in the food.
Reply to
Jim Thompson

Done

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Tried that, I can open the png format file from the download, but not the html files - let me know and I'll find and repost them individually in png format. Html works fine from my hard drive.

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You have no clue how well it works. Mommy in the SUV will never have a blade. Mommy in the SUV is petrified of anything larger than she. A blade trumps a thousand pounds!

Hogwash.

No, I know you're an idiot and a slimy leftist-pinko-drugged-up freak! SUVs have this little 'U' in the middle.

6-ton? Me thinks you gotta get your head out of the poppy field here son! You are really whacked! 
--
  Keith
Reply to
Keith R. Williams

I think you're response just proved my point.

Damn pissed off another SUV owner . . . Why not just get some Viagra, old man, and a more sensible vehicle? You'd save money and probably have more fun. Assuming you can remember what fun is.

take care

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meeting

You're an idiot. ...any relationship to DimBulb? ...like his sister, or sock-puppet? You're *that* close.

Get your head out of the bong. 6-tons? You are an idiot! (a

12000lb SUV, man you gotta get with reality!) Drop your penis- envy and get with reality!

...and no, I don't own an SUV of any kind. I do own a small 4WD pickup. We've already had 5' of snow this year. 4WD has been very useful!

Suck some more Ganja. You'll have loads of fun rotting your brain further.

--
  Keith
Reply to
Keith R. Williams

snip

Are you familiar with the concept of hyperbole? I intended that as sarcasm, but didn't understand I was writing to the intellectually challanged.

Bong? I thought that was a 60's thing. Do people still use those?

Never a cause for penis envy.

My PU is 10+ years old with 10,000 miles on it. I drive a relatively small rusty beat up 20+ year old motorcycle or a bicycle.

The only drugs I do are coffee and beer. I own a half-bottle of aspirin - that's two years past its expiration date, does that count?

Maybe you should stop - I hear that ganja will affect sexual performance. Ah . . . that's the reason for your vitriolic prose, and reference to drugs?

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Well I live and drive :( in Los Angeles.... I could probably handle lane ambivalence. It would be a step in the right direction for the SUV set out here. What we have approximates Brownian motion!

-Bob

Reply to
Bob Stephens

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