Re: Any good Cell Phone Jammer Schematics

flank wrote:
mc wrote:
As a college teacher, I would love to have a cell phone jammer in my
classrooms. Almost every student has a cell phone, and at least once a
week one goes off in class.
I'm a college teacher, and I deal with problems like this by giving the
students a bit of education about basic politeness. Websurfing and games on
laptops in class are a much bigger problem than cell phones.


I have concocted many ways of discouraging cell phone usage in class
and in lab. The problem I have is that I don't want to waste time on
it. I have tried using the embarrassment technique, the
"throw-you-out-of-class" threat, the reminder at the start of each
lecture, and I have spoken to the students individually about how
disruptive the ringing is. All of these methods are a waste of class
time. I think a jammer would be justified in a classroom, and in many
other public settings.


I can see your point there, but to opposing argument is that someone
could be trying to make an emergency call, either in your classroom or
outside. It could be you on the floor having a heart attack while
people run around trying to get out of range of the jammer to call an
ambulance.

Another possible problem, particularly with a crude homemade jammer, is
that it may well radiate at frequencies other than those intended and
thus interfere with radios used by emergency services or even air
traffic control (unlikely but possible).

Gareth.

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