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2. 4G Dual-Polarized Directional Antenna 1 9dBi High-Gain Industrial WiFi Signal Booster BCSK-SJH2400 Array Antenna

This 2 4G dual-polarized directional antenna (model BCSK-SJH2400) is designed for high-density wireless deployments. It supports horizontal 90° and vertical 60° beam coverage with a gain of up to 19dBi, making it ideal for enterprise WiFi coverage, industrial IoT terminal access, remote video surveillance systems, and signal enhancement in large venues. Featuring dual circularly polarized dipole elements paired with a metal reflector to optimize the radiation pattern, it effectively mitigates multipath interference and enhances link stability in complex electromagnetic environments. Operating across the 2400-2500MHz frequency band, it is compatible with mainstream 802.11b/g/n protocols and supports both wall-mounting and bracket mounting for easy installation—making it the ideal choice for network optimization engineers seeking to improve wireless coverage quality.