Mobile phone Jammer KJX-450
The KJX–450 signal jammer blocks wireless communication signals for mobile communications (2G, 3G, 4G, and 5G) and Bluetooth/Wi-Fi (2.4G, 5.2G, and 5.8G) within a specific area. It supports the existing networks and reserved communication frequencies of the major domestic operators.
When activated, mobile phones within the signal-blocked area cannot communicate with base stations, rendering voice, text messaging, and internet access impossible. Designed and developed using a software-defined radio (FPGA+ARM) architecture, the device generates an interfering carrier signal that complies with the 3GPP protocol specifications at the physical layer, including modulation, coding, and signaling protocols, for optimal interference effectiveness.
Through downlink power control and uplink TDD time slot control, the device ensures that the signal does not affect the normal operation of electronic devices within the blocked area, nor does it interfere with the normal operation of mobile phones and base stations outside the blocked area.
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