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Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...
Radio jamming is the deliberate blocking of or interference with wireless communications. [1] [2] In some cases, jammers work by the transmission of radio signals that disrupt telecommunications by decreasing the signal-to-noise ratio.
The most important method to counter radar jammers is operator training. Any system can be fooled with a jamming signal but a properly trained operator pays attention to the raw video signal and can detect abnormal patterns on the radar screen. The best indicator of jamming effectiveness to the jammer is countermeasures taken by the operator.
Jammers or radio frequency “shields” are also a frequent topic of discussion in online forums dedicated to people who believe that the government or others are singling them out for in-depth ...
R-330Zh Zhitel ECW signal jammer, deployed on exercises R-330Zh Zhitel ECW signal jammer, side view while parked at a military exhibition. The R-330Zh Zhitel is a mobile truck-mounted electronic warfare jamming communication station, manufactured by NVP Protek and fielded by the Armed Forces of the Russian Federation (AFRF). [1]
A virtual base transceiver station (VBTS) [5] is a device for identifying the temporary mobile subscriber identity (TMSI), international mobile subscriber identity (IMSI) of a nearby GSM mobile phone and intercepting its calls, some are even advanced enough to detect the international mobile equipment identity (IMEI).
Radar jammer, a device used in radar jamming and deception; Radio jammer, a device used in radio jamming; Radio-controlled Improvised Explosive Device jammer, a counter-IED device; Mobile phone jammer, an instrument used to prevent cellular phones from receiving signals from base stations
Jamming (knot), the tendency of knots to become difficult to untie Interfering with communications or surveillance: Radio jamming; Radar jamming and deception; Mobile phone jammer