jammer

   A mobile phone jammer is a device designed to prevent the use of GSM devices within range.  Note that the cellular jammer works not only directly with phones, but also with various devices (including bugs) using the same range.  They are different.  It could also be a drone jammer . ​​​​​​​  How do cell jammers work?  The cell phone jammer operates according to a fairly simple scheme, worked out on the suppression of radio signals long before the appearance of the first GSM devices.  The cell jammer uses the same range as a cell phone - and fills it with interference that makes it impossible to use the devices for their intended purpose.  Cell jammers can work in two modes: adaptive, also called intelligent, and permanent.  In continuous mode, the device sends interference on the air continuously and makes it impossible to exchange information between a cell phone and a cell, that is, it completely blocks it.  The mobile phone jammer operating in intelligent mode does not “press” th