Cell Phone Signal Blocker

Posted by BloodDiamond (234 days ago)

I have a friend who would like to buy a few of these, any ideas where they can get them? Specific locations/shops would be helpful
thanks

(I am based in Hong Kong)

Find what you are after in our Vietnam A-Z Directory

Posted by tigerbay (234 days ago)

Hi BD

I remeber there was a discussion on this started about a year ago on this forum. I don't know how far the discussion went.

Try doing a search for 'stick'

(I am based in Shanghai)

Posted by BloodDiamond (234 days ago)

Thanks, found that one and did search for others, but not real helpful! Thanks for your reply

(I am based in Hong Kong)

Posted by omaharrison (232 days ago)

If you think about getting any of those, think also on the amount of radiation you will expose yourself to when operating it, as far as i know its quite large.

(I am based in Hong Kong)

Posted by mjo (216 days ago)

Guangdong is awash with manufacturers of such equipment. Too many to mention, but search for "mobile phone jammer/blocker manufacturers guangdong" and you'll be spoilt for choice.

(I am based in Guangzhou)

Posted by OldHippy (200 days ago)

These People have it
http://gadget.brando.com.hk/prod_detail.php?prod_id=00493

(I am based in Bali)

Posted by m_gz (199 days ago)

Careful of the no-frills jammers (usually walkie-talkie shaped & no antenna) they often only block one system, or at best one system at a time. And sometimes don't work with new technologies like 3G (successor to GPRS, tech needed for wireless downloading). You don't want a jammer that only blocks certain people and older phones.

The multi-aerial units are available at Haiyin (north side of Haiyin bridge). Lots of models from RMB150-200+ upwards. Start with Haiyin's spycam/hidden surveillance equipment shops as they usually have jammers on sale.

Also, you have dozens of models on Taobao:
http://search1.taobao.com/browse/0/t-g,zlllx6vyzhemlrxx----------------40--commend-0-all-0.htm?at_topsearch=1
Usually delivered next day, usually cash on delivery. Sorry if you can't read the Chinese but it might be worth asking someone for help.

(I am based in Guangzhou)

Posted by m_gz (199 days ago)

Re radiation worries, as far as I understand, the huge, powerful, non-portable jammers only cause the concern. Otherwise, churches, cinemas wouldn't be debating the installation of jamming equipment.

Jammers work by transmitting radio signals on the same frequency as mobile phones and disrupting the phone's link to it's nearest base station/aerial. They end up cancelling out each other out. In the process, I believe, jammers absorb radiation from the base station of the phone.

(I am based in Guangzhou)