Thursday, January 7, 2010

Why People Use Cell Phone Jamming Device

A mobile phone jammer is also called a cell phone jammer. The Wikipedia said a cell phone jammer is an instrument used to prevent cellular phones from receiving signals from or transmitting signals to base stations. When used, the jammer effectively disables cellular phones. These devices can be used in practically any location, but are found primarily in places where a phone call would be particularly disruptive because silence is expected.

I believe that everyone has the experience of getting unwanted phone calls. How to get rid of the disturbance of these phone calls? There is a convenient and easy way to get them to stop calling you. A mobile phone jammer can stop all these unexpected calls.

There are mainly three types of mobile phone jammers, including handheld mobile phone jammers, desktop mobile phone jammers and wall-mounted mobile phone jammers. Cell phone jamming device can work by either disrupting phone to tower frequencies or tower to phone frequencies. Smaller handheld models block all bands from 800MHz to 1900MHz within a 30-foot range (9 meters). Small devices tend to use the former method, while larger more expensive models may interfere directly with the tower. The radius of mobile phone jamming device can range from a dozen feet for pocket models to kilometers for more dedicated units. The TRJ-89 jammer can block cellular communications for a 5-mile (8 km) radius.

So when you don't want to get phone calls at a time, you can get a handheld phone blocker. You can't stop others call you but you have the right to refuse receiving phone calls.

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