When the phone jammer is active, most phones will not display network signals. When the GSM handheld jammer is turned off, the phone is also active. Mobile phones use unique frequencies for talking and listening. Most cell phone jammers block one of these two frequencies, thereby indirectly blocking these two frequencies. Cell phone jammers work in the same way as portable jammers that block radio communications. They work by interrupting the frequency from the mobile phone to the base station or from the base station to the mobile phone. Law enforcement agencies and the military use portable cell phone jammers to restrict and interrupt communications in various situations. Some companies use cell phone jammers to prevent corporate spies by blocking communications in sensitive areas. Some people also use cell phone jammers to prevent others from using their phones nearby.
There are many reasons why you can use a mobile phone signal jammer. Some of them can be used legally with the permission of the local government. Cellular jammers are usually used when the mobile signal is blocked and cannot ring because of safety reasons or forced mobile silence. A mobile phone jammer is an instrument that prevents a mobile phone from receiving signals from a base station. When in use, the jammer can effectively turn off the phone. These devices can be used almost anywhere, but mainly because they need to be muted, so calls to these locations are particularly susceptible to interference.
When the phone jammer is active, most phones will not display network signals. When the GSM jammer is turned off, the phone is also active. Mobile phones use unique frequencies for talking and listening. Most cell phone jammers block one of these two frequencies, thereby indirectly blocking these two frequencies. Mobile phone jammers work in the same way as jammers that block radio communications. They work by interrupting the frequency from the mobile phone to the base station or from the base station to the mobile phone.