Review on 📶 High-performance WiFi 9dBi Dual Band Omni Directional Antenna for Wireless Routers and Network Devices - 2.4Ghz/5Ghz, RP-SMA Male Connector by Vinay Mickel

The signal is improving, but for a modern 3-antenna configuration, the center antenna must be vertical and the two outermost antennas must each be tilted outwards 45 degrees (90 degrees apart). This is next to impossible with this set as the weight of the antennas overcomes the friction in the swivel collars causing the antennas to tip over and fold down. Bad design or execution. And there's really no other option but to tie him up with a rope or something. Direct tightening of the clamps is not possible.