How does a signal jammer work?
In many cities, special police and public security departments are usually equipped with signal jammers to cope with a variety of complex security tasks. The core equipment of a signal jammer is the host, which consists of multiple RF modules, covering a wide frequency band of about 20MHz to 6000MHz. According to the needs of different tasks, the jammer can selectively turn on some RF modules to achieve accurate and efficient signal jamming.
RF module startup strategy for different tasks
1. Counter-terrorism bomb disposal tasks
During counter-terrorism bomb disposal, the task of the signal jammer is to fully shield all wireless signals that may be used for remote control bombs. To ensure that there are no dead angles for the signal and avoid any suspected remote control signal from escaping, the jammer will:
Start all RF modules, covering all frequency bands from 20MHz to 6000MHz;
Achieve seamless suppression of the entire frequency band to prevent any remote control signal from entering;
Ensure the safety of life and property of bomb disposal experts and the public.
2. Mass event control
During mass events or emergency control communications, the main purpose of the 5G jammer is to limit mobile phone communications and network transmission to prevent information leakage or improper spread. At this time, usually:
Only enable the RF module for the mobile phone communication frequency band and the WiFi frequency band module;
Avoid interference with irrelevant devices and focus on controlling communication signals;
The jammer is usually parked in a higher position, with the antenna raised to expand the coverage;
Make sure the antenna is in the unfolded state before powering on to improve the jamming effect.
3. Workflow description
Onsite evaluation: Determine the combination of RF modules to be activated according to the mission requirements;
Equipment preparation: Turn on the power of the jammer and raise the antenna;
Module startup: Activate the corresponding RF module and adjust the power and direction;
Signal interference: Block the target wireless communication by transmitting high-power jamming signals;
End of mission: Turn off the RF module, put away the antenna, and turn off the device.
The signal jammer relies on the flexible combination of multi-band RF modules to effectively shield specific wireless signals and meet the needs of multiple scenarios such as anti-terrorism, bomb disposal and social security management. Reasonable selection and use of RF modules are the key to ensuring the success and safety of jamming missions.
Signal Blocker Image Gallery
