A jammer is a device that blocks or interferes with the normal operation of other radio equipment by transmitting radio signals. It is widely used in a variety of fields, including military, criminal investigation, and privacy protection. However, the use of jammers comes with legal and ethical issues. This article will delve into the working principles of jammers to help readers better understand the technical details and application scenarios of this device.


Basic Concepts of Jammers
A jammer covers or disrupts the target signal by transmitting a radio signal of the same or similar frequency as the target device's operating frequency, thus preventing the target device from receiving or transmitting data properly. A jammer usually consists of the following major components:

Power supply: provides power to the jammer.
Signal transmitter: generates the jamming signal.
Antenna: transmits the jamming signal into the air.
Control circuit: regulates and controls the frequency and strength of the jamming signal.
The working mechanism of the jammer
The working mechanism of the jammer mainly includes the following steps: