In an era where digital infiltration and advanced espionage techniques are constantly evolving, the physical security of sensitive facilities has become a critical concern—especially for government and military confidential meeting rooms. To prevent severe consequences resulting from information leaks, it is essential to deploy cell phone jammers within controlled environments.
A client required a complete communication signal jammer within a 300-square-meter meeting room used for confidential briefings.
The challenge, however, was the extremely harsh electromagnetic environment. The room was located in a dense urban area, surrounded by residential buildings and commercial towers, with several cell towers positioned within a 200-meter radius. Additionally, signal boosters were installed on nearby rooftops, pushing the mobile signal strength to RSRP levels as high as -50 dBm. Under such strong signal interference, conventional jammers were ineffective.
1. Preliminary Survey and Environmental Assessment
Height Strategy:
Considering the conference room has a ceiling height exceeding 10 meters, a “staggered vertical coverage” deployment strategy is adopted. Directional jammers are installed on walls and pillars to ensure coverage of both the ceiling and the main activity areas.
Signal Source Identification:
The focus is on detecting the strength and interference sources of 5G/4G/Wi-Fi signals to determine if directional antenna angles or power levels need to be adjusted.
2. Device Selection and Scientific Layout
Model Selection:
Dexinkang’s high-power directional jammers are adopted. These support full-band interference (2G to 5G, Wi-Fi, Bluetooth) with independently adjustable power per frequency.
Deployment Density Recommendation:
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One jammer per 100 square meters, arranged in a honeycomb pattern;
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Additional directional antennas in special areas (e.g., near windows or doors) to provide targeted suppression.
Installation Height Guidelines:
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Wall-mounted: Recommended height is 2.5 to 3 meters;
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Pillar or ceiling-mounted: Ensure the cone-shaped coverage area is unobstructed so the signal can “penetrate” the usage zone effectively.
3. Safety and Redundancy Measures
Emergency Communication Assurance:
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Maintain emergency communication whitelist (e.g., 120, 110);
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Establish a signal buffer zone outside the conference area to enable urgent communication when needed.
Redundancy Design:
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Backup modules are prepared in core areas;
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In the event of main controller failure, automatic switchover ensures continuous signal blocking.
4. What Benefits Does Our Phone Blocker Deliver to Customers?
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Achieve precise directional suppression in complex and high-signal environments;
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Create a secure conference space free from signal leakage and blind spots;
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Comply with legal regulations while ensuring user convenience.
During confidential meetings, the cell phone jammers effectively disrupted real-time transmissions from hidden cameras and covert listening devices. This comprehensive interference capability played a critical role in protecting highly sensitive information—such as classified military intelligence, national security strategies, emergency response plans, and major project investment discussions.
In an age of invisible data leaks and AI-enhanced espionage, even a brief breach can compromise military intelligence, derail national defense strategies, or expose critical emergency plans. The cost of such exposure is not just operational failure but a national crisis.
It is urgent to adapt high-power blockers in modern cities, where high signal density renders traditional jammers obsolete. Dexinkang’s customized solution delivered robust performance in an extreme environment, ensuring absolute confidentiality in mission-critical settings.
Contact us today to discuss your requirements and receive a customized, professional signal blocker solution designed to safeguard your confidential information.
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