Jamming a frequency - high power

[tibberous]

Does anyone know how to jam a non-fm frequency with decent power? (10+ watts)

Looking mostly to take out cell phone frequencies. Seems like it should be pretty easy, but you can't find much info on it -- I'm guessing due to FCC regulations on broadcasting on non-radio frequencies.

[vovka351]

uhm... get a higher-powered transmitter on that frequency. hurr.

[TheyCallMeNothing]

A simple Google search gave me this.

http://www.instructables.com/id/Radio-Jammer/

[SBTlauien]

I watched a show that said the secrete service uses these to throw off IED attacks against the president.

[tibberous]

Originally Posted by TheyCallMeNothing

A simple Google search gave me this.

http://www.instructables.com/id/Radio-Jammer/

Yeah, I don't think those have any real power to them. You can buy them out of china with powers around 2-5 watt per band (generally not tunable, but preset to GSM, CDMA, 3G, ect)

I'm not sure, but I don't think jamming really 'stacks' - otherwise you could just buy 40, 10 watt jammers and have a 400 watt jammer. (not bad, considering a 10 watt jammer is about $100)

[lillix]

My friend Limor's jammer is pretty efficient. I don't know what radius you're looking to jam in, but you might look at this for thoughts.

http://ladyada.net/make/wavebubble/index.html

[skygear]

You will also need some High gain antennas, and high watt amps/ signal boosters.

[Leshrac]

you need something called an USRP.

And a program like GNU-Radio.