[ale] OT: Cell phone signal blocker

[Jim Kinney]

You'll need a white noise generator that broadcasts at the multiple
cell phone frequencies. Anything that puts out more that about 50W
should totally blanket the room(s).

Low tech is an easier solution: All participants must keep both hand
on/above the table at all times or they are disqualified. I have had
this issue with college exams...

On Mon, Jun 22, 2009 at 12:11 PM, Vernard Martin<vernard at venger.net> wrote:
> ok, this is going to sound like I've been watching too many sci-fi
> movies but I want to obtain a device that can block cell phone reception
> in about a 10 to 20 yard radius. This is not for myself but for a friend
> of mine. He is one of those people that runs the Team Trivia events at a
> local sports bar. He is having a hard time with folks cheating by
> looking up the answers to trivia questions on their blackberries and
> such. He is hoping that he can block the signal they are using.
>
> I personally don't think its possible without introducing a helluva lot
> of signal noise in the area that will screw up other stuff (possible
> including human life) but I thought it was best to pose the question to
> the best set of techno-geeks that I know.
>
> Any ideas? And yes, this does not address the issue of legality at the
> moment, :)
>
> V
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James P. Kinney III
Actively in pursuit of Life, Liberty and Happiness