cel phone jammer

[ducatiz]

http://www.cellphoneshop.net/blocker.html

anyone used one of these?

pretty cheap for a little silence

[RAT900]

No FHE but if it works as advertised it is a blessing

and the inventor should be canonized

[ducatiz]

i think it's cheap because it doesn't do 4g blocking.  no idea.

look what else this site has:

http://www.cellphoneshop.net/gpsblocker.html

[RAT900]

Is there one that makes the offender's cellphone a molten blob or explode?

[cokey]

i think it's cheap because it doesn't do 4g blocking.  no idea.

look what else this site has:

http://www.cellphoneshop.net/gpsblocker.html

Interesting. Wonder if it works.  We have gps trackers in our trucks now..

[metallimonster]

FYI,

The operation of transmitters designed to jam or block wireless
communications is a violation of the Communications Act of 1934, as
amended ("Act"). See 47 U.S.C. Sections 301, 302a, 333. The Act
prohibits any person from willfully or maliciously interfering with
the radio communications of any station licensed or authorized under
the Act or operated by the U.S. government. 47 U.S.C. Section 333. The
manufacture, importation, sale or offer for sale, including
advertising, of devices designed to block or jam wireless
transmissions is prohibited. 47 U.S.C. Section 302a(b). Parties in
violation of these provisions may be subject to the penalties set out
in 47 U.S.C. Sections 501-510. Fines for a first offense can range as
high as $11,000 for each violation or imprisonment for up to one year,
and the device used may also be seized and forfeited to the U.S.
government.

But damn wouldn't it be nice to be able to shut people up at the movies. My biggest pet peeve.

[duccarlos]

I believe that those that have been in situations where calling 911 saved their lives would disagree with the use of said device.

I would think that with enough disclamers all over the place and the ability to control the area that is impacted, a device like this would be fine in certain situations.

One of my previous employers leased an office space that was originally used by IBM as a research and development site. As soon as I walked through the door, I would lose all cell signal. This was not done by a jammer so much as by whatever material was used in the construction of the building. It was quite annoying.

[Dirty Duc]

Based on the low output (10dBm is low power) and low claimed range (a 30 foot circle), and the proliferation of cell towers/repeaters in most metropolitan areas, I would guess it is significantly less effective than claimed.

It looks like something that was much more effective in 1998 when the blocked signals had just been invented.  Current GSM and CDMA type networks are significantly more robust than they were 14 years ago.  Just saying.

I can geek out more if you'd like.

[derby]

Interesting. Wonder if it works.  We have gps trackers in our trucks now..

i used to work for the company that pioneered that service (way back in 1995).

[MendoDave]

Is there one that makes the offender's cellphone a molten blob or explode?

The molten blob idea appeals to me.

[Speeddog]

FYI,

The operation of transmitters designed to jam or block wireless
communications is a violation of the Communications Act of 1934, as
amended ("Act"). See 47 U.S.C. Sections 301, 302a, 333. The Act
~~~SNIP~~~
Fines for a first offense can range as
high as $11,000 for each violation or imprisonment for up to one year,
and the device used may also be seized and forfeited to the U.S.
government.[/color]

But damn wouldn't it be nice to be able to shut people up at the movies. My biggest pet peeve.

I was gonna say, the FCC usually has no sense of humor about someone stepping on their turf.

[ducatiz]

FYI,
~~~the Act or operated by the U.S. government. 47 U.S.C. Section 333. The
manufacture, importation, sale or offer for sale, including
advertising, of devices designed to block or jam wireless
transmissions is prohibited. 47 U.S.C. Section 302a(b). Parties in
~~~
But damn wouldn't it be nice to be able to shut people up at the movies. My biggest pet peeve.

yes, i was aware, but with a 10m radius, I doubt it would cause that big of a stink for them to send out the trucks to triangulate your location etc.

i doubt there is much they can do -- practically speaking -- for a very small portable one.

[brimo]

Interesting. Wonder if it works.  We have gps trackers in our trucks now..

There is any number of cheap GPS jammers on fleabay, I have it on the highest authority that they do work, just plug 'em in to your cigarette lighter and you're good to go. Or so I'm told anyway, I would never condone such a thing.

[77south]

GPS jamming is bad news.  Lots of things you don't even realize use GPS.  Cell phone towers use GPS for the time signal they send out, Airports and airplanes use GPS for automated landing.  I read an article somewhere that an airport had trouble with their automated landings at a certain time every day, and it was because a truck with a GPS jammer rolled by at that time.  The FCC was not amused. Neither was the FAA.

Here is an article I found on the subject:http://www.newscientist.com/article/dn20202-gps-chaos-how-a-30-box-can-jam-your-life.html

[ducatiz]

Given the ease and cheapness of all this jamming, I think it's time we looked at other means then.

Pretending the problem doesn't exist is asinine.