Mobile phone jammers behave like signal blocker in that they emit the same radio frequencies that mobile phones operate. This will cause enough interference and you will not be able to connect the call to your mobile phone. Currently, two types of mobile phone jammers are available. The first type is usually a small device that blocks the signal from the cell tower to the individual cell phone. The blocked frequencies are 800MHz to 1900MHz. Most devices that use this technology can block signals within a radius of 30 feet. Mobile phones in this area simply do not display signals.
Now you can politely ask them to leave silently, or instead you can buy a cell phone jammer and leave them all alone.
Unfortunately, they are becoming more and more important because many people (especially prison guards) want to believe that new technology gadgets can solve their problems. Not only have a group of prison guards petitioned the FCC for rulemaking, but they are upholding a bill requiring the FCC to allow cell phone jamming in prisons.
In four churches in Monterrey, Israeli pocket-sized mobile jammers are hidden between Madonna's paintings and statues of saints.
Japan allows jammers to be installed in public places such as theaters and concert halls if a government-issued license is obtained. And last week, the French Minister of Industry approved the decision to set up a movie theater, concert hall and theater as long as they were ready to make an emergency call.
Medic Inc, based in Tokyo. Sold thousands of Wave Wall GSM jammers before the government intervened and regulated their use in venues with live performances.
At least twice a week, Catholic Margarita Escobed, a volunteer at the Church of San Genaro, says he welcomes the misery of the parish, where mobile phones are becoming annoying.
A GPS jammer is usually a small device that connects to a light port in a vehicle and sends a radio signal that drowns out or drowns out much weaker signals such as GPS.