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Powerful MIMO antenna for 4G, based on the Kharchenko antenna. It is advisable to use foil-clad fiberglass, with it the antenna will be perfectly flat, while galvanized always bends a little, and the signal will deteriorate greatly. ▼Useful links▼ ►Powerful DIY antenna for 3G/4G Internet: • Powerful antenna for 3G/4G Internet sv... ►DIY 3G/4G repeater: • DIY 3G/4G repeater ►Antenna 1/2 fa20 for Wi-Fi 15 dbi: • Wi-Fi Antenna 1/2 fa20 15 dbi ►Online calculation of the Kharchenko antenna (zigzag) - 3G-aerial: https://3g-aerial.biz/onlajn-raschety...