A radio jammer is a device designed to interfere with or impede radio communications and the proper operation of radio equipment. It can emit radio frequency signals that interfere with signals from target devices or communication systems, causing them to malfunction or cause errors.
Radio jammers can employ different working principles and technologies. Some common types include:
Frequency jammer: This type of jammer emits radio signals at the same or similar frequency as the target device or communication system, causing its signal to be interfered with or covered, thus interfering with normal communications.
Bandwidth Jammer: This type of jammer emits a wide range of radio frequency signals, covering the frequency band used by the target device or communication system, causing its signal to be interfered with and unable to be transmitted or received normally.
Pulse Jammer: This type of jammer sends radio signals in the form of pulses that interfere with the normal operation of a target device or communications system. Pulse jammers jam radio signals by sending high-energy pulses at specific intervals.
Radio jammers may be used legally in certain circumstances, such as during military operations to interfere with enemy communications systems. However, in most cases, the use of radio jammers is illegal because they may interfere with other people's normal communications, including radio broadcasts, mobile communications, and wireless networks. Therefore, unauthorized use of radio jammers may be subject to severe sanctions under laws and regulations.