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Cell Phone Jammers


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#1 musashi5o

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Posted 24 August 2009 - 11:56 AM

I love cellphones & have even replaced my landline with one. As a high school classroom teacher I have a real problem. Just as you can't drive safely while texting, students can't really learn while texting. We have rules, but basically it's a "don't ask don't tell"rule and I don't mind, but many students can keep their hands in their hoodies' pockets & text w/o looking or maybe using a quick glance.

Is there good good DC cell phone jammer with around a thirty ft. radius signal that I can keep in my classroom? I wouldn't even tell my students...just quietly let it do it's job during class time. Maybe, just for kicks I could walk the hallways between classes with it on my belt and watch the tears start to flow.

I've heard many opinions about the possibility of blocking emergency calls, etc., but this is only for the classroom.


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#2 Eric RBA

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Posted 24 August 2009 - 12:03 PM

Is there good good DC cell phone jammer with around a thirty ft. radius signal that I can keep in my classroom? I wouldn't even tell my students...just quietly let it do it's job during class time. Maybe, just for kicks I could walk the hallways between classes with it on my belt and watch the tears start to flow.
Musashi


Slightly sadistic, but what a brilliant idea. I hope you find something out.
I would never ask a person to do something that I wouldn't do myself.

#3 rigel

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Posted 24 August 2009 - 12:10 PM

I've heard many opinions about the possibility of blocking emergency calls, etc.

That is what your main office is for.

I wouldn't mind seeing this myself :blink:

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#4 ddeerrff

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Posted 24 August 2009 - 04:14 PM

Only problem is that using a jammer is a federal offense. Otherwise, I think it is a good idea - not only for the classroom, but installed in cars too.
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#5 Eric RBA

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Posted 24 August 2009 - 08:21 PM

Wow! A federal offense? That seems a little extreme, but I believe it.
I would never ask a person to do something that I wouldn't do myself.

#6 ddeerrff

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Posted 24 August 2009 - 08:47 PM

It's a violation of FCC rules. FCC = Federal Communications Commission

http://www.monstersandcritics.com/news/usa..._by_the_jammers

http://www.howardforums.com/showthread.php...ighlight=jammer
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#7 Animal

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Posted 24 August 2009 - 09:07 PM

Add this bit of an explanation of why it's considered a crime:

In the United States, United Kingdom, Australia and many other countries, blocking cell-phone services (as well as any other electronic transmissions) is against the law. In the United States, cell-phone jamming is covered under the Communications Act of 1934, which prohibits people from "willfully or maliciously interfering with the radio communications of any station licensed or authorized" to operate. In fact, the "manufacture, importation, sale or offer for sale, including advertising, of devices designed to block or jam wireless transmissions is prohibited" as well.

Jamming is seen as property theft, because a private company has purchased the rights to the radio spectrum, and jamming the spectrum is akin to stealing the property the company has purchased. It also represents a safety hazard because jamming blocks all calls in the area, not just the annoying ones. Jamming a signal could block the call of a babysitter frantically trying to contact a parent or a someone trying to call for an ambulance.

Above quote taken from here: http://electronics.howstuffworks.com/cell-phone-jammer5.htm

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#8 musashi5o

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Posted 26 August 2009 - 12:53 PM

Hey y'all, thanks for the links & info.

What a shame, though I can see why it's illegal. If they were legal then there'd be an uncountable number of regulations covering where they could be used & where not to use them. I've seen websites promoting their sale but noticed that no U.S. companies sold them; many Asian elctronic suppliers had them.

Intead, I can just ramp up my lessons to the point where no one wants to text during my class & everyone will want to learn. Plus, there are many other subtle ways of making teenagers miserable.

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#9 Eric RBA

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Posted 26 August 2009 - 02:10 PM

If you come up with a curriculum that can steal the current youth's attention away from gadgets, games and the countless other dozens of distractions you'll be a millionaire! Good luck!! I have a lot of respect for teacher's in this era, you have your work cut out for you like never before!
I would never ask a person to do something that I wouldn't do myself.

#10 techextreme

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Posted 26 August 2009 - 02:22 PM

I've got another idea, how about sitting a basket near the entrance to your classroom and put up a sign "Deposit Cell Phones Here After Turning Them Off. You May Pick Them Up After Class."

I've not heard of any laws or rulings that would stop you from doing that. Besides, they are in your classroom to learn, not text.

And if parents get upset, then you can tell them that their children are wasting their tax dollars while texting in class and not paying attention.

Just my 2 cents.
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#11 plumbarius

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Posted 07 September 2009 - 05:37 PM

I am also a teacher and my school has strict rules for usage. Once you enter the school, phone goes off. If you are caught using it or it goes off in your pocket or purse...you lose it, it gets turned in to the office and you don't get it back until you serve a detention. Detention is only done twice a week so it can be a real pain to the student. Parents call and complain that their child "needs" their phone for the weekend, but we have parent/student sign a paper which states our cell phone policy and the penalty for breaking rule.

Unfortunately, it is a federal law with jammers, but I have heard that someone makes a wall paint with special ingredients that jams phones in classrooms or offices....worth looking into, illegal or not! :blink:

#12 lrrlzrd

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Posted 08 September 2009 - 03:45 PM

passive blocking of cell pones is legal active blocking is illegal.

a cell phone jammier is illegal

butt using spacial pint or anything metallic to passively adsorb the signal from the tower to the cell phone and vice versa will get the same result and more impotently is legal.

a class room lined in aluminum foil wold work but wold be impractical so you should look for the pint.

#13 tos226

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Posted 16 September 2009 - 09:54 PM

I've got another idea, how about sitting a basket near the entrance to your classroom and put up a sign "Deposit Cell Phones Here After Turning Them Off. You May Pick Them Up After Class."

I've not heard of any laws or rulings that would stop you from doing that. Besides, they are in your classroom to learn, not text.

And if parents get upset, then you can tell them that their children are wasting their tax dollars while texting in class and not paying attention.

Just my 2 cents.

The basket to deposit the phone is used when you get stuck onto jury duty in my neck of the woods. Phones are illegal in the courtroom.

#14 bigalexe

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Posted 23 September 2009 - 12:49 PM

You cannot jam communications equipment, END OF STORY.

There are multiple reasons but the simplest may be that your device depends on its quality may block other things than its intended target which may result in harmful interference. I may suggest building a Faraday Cage around your room though, for instructions see a local physics professor.
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#15 Swordie

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Posted 23 September 2009 - 09:24 PM

Why don't you just confiscate them like at my old High School? Walk around like a patrol when your teaching.. That will stop em!
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