Mobile Jammer is an instrument to block receiving signals from the base station. These devices can be used that place where mobile should be silent like meeting room, conference room, museum, theatre, concert hall, church, temple, banks, classroom etc. These devices were originally developed for law enforcement and the military to interrupt communications by criminals and terrorists. Mobile jammer devices are portable in size and consume less power. Mobile Jammer can be used anywhere at any location without any effort because it is easy to install and simple to use.
Older jammers sometimes were limited to working on phones using only analog or older digital mobile phone standards. Newer models such as the double and triple band jammers can block all widely used systems (CDMA, iDEN, GSM, etc.) and are even very effective against newer phones which hop to different frequencies and systems when interfered with. The radius of Cell Phone Jammers can range from a dozen feet for pocket models to kilometers for more dedicated units.
Mobile Jammer is battery operated systems bcoz they are small in size and easy to operate. Stronger devices can be plugged into a standard outlet or wired into a vehicle's electrical system. The jammer's can vary widely effect based on factors such as indoor & outdoor settings, proximity to towers, presence of buildings and landscape, even temperature and humidity play a role.