Equipment that jams cell phones will get its first federally sanctioned test inside a prison in Maryland this week, as state officials try to show Congress how the technology can prevent inmates from using the contraband devices to commit crimes, a governor’s spokesman said Tuesday.
The state wants to show the equipment can be used without interfering with emergency response and legitimate signals outside the prison perimeter, said Shaun Adamec, Gov. Martin O’Malley’s spokesman.
The Federal
Communication Commission can only allow federal agencies — not state or local authorities — permission to jam cell phone signals. But a bill that passed the Senate and awaits action by the House would allow states to petition the FCC to block the use of cell phones from prisons.
The nation’s prisons are one big step closer Wednesday to being allowed to jam mobile phone signals to keep prisoners from using the phones to commit further crimes, despite strong opposition from digital rights groups that say there are better ways to fight the problem.
The bill — passed by a bi-partisan vote in the Senate Commerce committee — would create the first ever exception to the FCC’s ban on jamming devices.
The measure could be voted on by the full Senate as soon as early as this, before it takes its August break, according to Texas Republican Kay Bailey Hutchinson, the bill’s primary sponsor who is also running for Texas governor.
New York Times’ “ethical advice” columnist Randy Cohen gives his take on RF jammers (like, say, Wave Bubble) in NYT Magazine:
The Ethicist
The Phone Ranger
By RANDY COHEN
Published: March 4, 2007
Each day people are more brazen and rude with their cellphones. My husband bought a device that can block the signals of cellphone users who annoy him, although he knows such gizmos are illegal. Isn’t his vigilante behavior worse than that of the rudest cell user? — Name Withheld, Connecticut
Your husband may not stifle someone’s behavior merely because he deems it annoying. So capricious a standard would mean constant peril for people who talk baby-talk to their excessively small dogs. Living among other people requires us to tolerate conduct we find vexing.
Or so my head tells me. But my heart says, Your husband is a hero, an acoustic Robin Hood who robs from the rude and gives blessed silence to the poor in spirit.
I propose these guidelines: If someone is yammering into a cellphone on the pavement and you don’t like it, walk away. It is open public space, and opinions vary about its use. Some people place a lower value on quiet than on prattling about what they saw on TV last night. (An immutable law of nature: The louder the phone voice, the duller the conversation.)
But if someone is using a cellphone in a closed space — on a commuter train, in a restaurant — from which you cannot escape, let the jamming begin. We properly limit our freedom when we harm others. It is the cellphoner’s jabbering that prevents you from reading your book or thinking your thoughts, not the other way around.
Those who control shared closed spaces — a theater, a physician’s waiting room — should jam and disclose. Post a sign that says “No Cellphone Service” so people know what they’re getting into. Anyone anticipating an urgent call can ask to use the land line. For decades, doctors on call did just that, and we all survived. Sadly, this solution — ethical, courteous and humane — is frowned on by the F.C.C., but tell your husband I’ll visit him every week in jail.
After visiting some web pages about 2.4 GHz ISM band spectrum analyzers based on the CYWM6935 module, I tried to build my own analyzer, but with some improvements. The references I found on the net used the parallel port or a serial link to a host computer. I want the analyzer to be portable, and easy to transport, so I will use a microcontroller and a graphical LCD. I had also some old Nokia phones, so maybe I can use phone plastic box and build in LCD to make my own portable analyzer, but… Does it can be done? Let’s see…
You will receive the Designs (Plans) for this RF Jammer in Electronic form. The Listing picture is for showing how the RF jammer looks like. This listing is only for the Design of the RF Jammer, it does not include the Device itself!!! You will receive RF Jammer Designs upon Payment. The Designs will be delivered to you on CD by Priority Mail.
The nation’s prisons are one big step closer Wednesday to being allowed to jam mobile phone signals to keep prisoners from using the phones to commit further crimes, despite strong opposition from digital rights groups that say there are better ways to fight the problem.
The bill — passed by a bi-partisan vote in the Senate Commerce committee — would create the first ever exception to the FCC’s ban on jamming devices.
The measure could be voted on by the full Senate as soon as early as this, before it takes its August break, according to Texas Republican Kay Bailey Hutchinson, the bill’s primary sponsor who is also running for Texas governor.
Ooh, yeah! All right!
We’re jammin‘:
I wanna jam it wid you.
We’re jammin’, jammin’,
And I hope you like jammin’, too.
Ain’t no rules, ain’t no vow, we can do it anyhow:
I’n'I will see you through,
‘Cos everyday we pay the price with a little sacrifice,
Jammin’ till the jam is through
ST. ANSGAR, Iowa (AP) – School officials in St. Ansgar in northeast Iowa are considering buying equipment to jam cell phone signals if they can do so legally.
Hah, this is funny a car cigarette lighter GPS jammer – a via BB. Most likely catering to the folks who are forced to drive a vehicle with some type of GPS/tracking…
Each day people are more brazen and rude with their cellphones. My husband bought a device that can block the signals of cellphone users who annoy him, although he knows such gizmos are illegal. Isn’t his vigilante behavior worse than that of the rudest cell user? — Name Withheld, Connecticut
Your husband may not stifle someone’s behavior merely because he deems it annoying. So capricious a standard would mean constant peril for people who talk baby-talk to their excessively small dogs. Living among other people requires us to tolerate conduct we find vexing.
Or so my head tells me. But my heart says, Your husband is a hero, an acoustic Robin Hood who robs from the rude and gives blessed silence to the poor in spirit.
I propose these guidelines: If someone is yammering into a cellphone on the pavement and you don’t like it, walk away. It is open public space, and opinions vary about its use. Some people place a lower value on quiet than on prattling about what they saw on TV last night. (An immutable law of nature: The louder the phone voice, the duller the conversation.)
But if someone is using a cellphone in a closed space — on a commuter train, in a restaurant — from which you cannot escape, let the jamming begin. We properly limit our freedom when we harm others. It is the cellphoner’s jabbering that prevents you from reading your book or thinking your thoughts, not the other way around.
Those who control shared closed spaces — a theater, a physician’s waiting room — should jam and disclose. Post a sign that says “No Cellphone Service” so people know what they’re getting into. Anyone anticipating an urgent call can ask to use the land line. For decades, doctors on call did just that, and we all survived. Sadly, this solution — ethical, courteous and humane — is frowned on by the F.C.C., but tell your husband I’ll visit him every week in jail.
I jammed Santa’s GPS so he couldn’t find his way to your house.
“In a high-population-density city, inhabitants must be prepared to defend their own personal space. Technologies that increase personal productivity are on the rise, even though they may intrude on others. The unavoidable reaction is to create technologies that counteract other people’s devices. Wave Bubble is a product that counters the all-too-familiar annoyance of loud ring tones and overt cell-phone conversations in public.“
Part of the “Social Defense Mechanisms” projects designed for my MEng thesis.
Wave Bubble was developed under support by EYEBEAM during my R&D fellowship at the Open Lab, thanks!
At HOPE I got to look at a cell-phone jammer owned by a friend. This one is interesting because 1) its extremely well designed 2) it’s very small and 3) it actually has a PLL instead of just being open-loop controlled. The entire package fits into a pack of cigarettes.
