Review on Enhance Your Wireless Range with TECHTOO Dual Band WiFi Antenna (2-Pack) - Compatible with Router, Adapter, IP Camera, Drone & More by Guled Probz

and guess what, they work great. Compared to a reference dual band collinear omnidirectional antenna of 2dBi at 2.4 and 3dBi at 5 (based on FCC testing), this antenna has a gain of approximately 3-4dBi in the 5.8GHz band in the Compared to a reference antenna of 3dBi and a gain of about 2-3dB compared to 2dbi @ 2.4GHz link. around. since accurate measurements are not possible without an RF camera. I used Insider, Acrylic and an Intel client and the radio is Archer C5. I've bought and tested MANY of these "indoor" antennas online and most of them are poorly designed and either absorb RF or reflect it back to the radio (sometimes high SWR but poor radiation). Very few actually work as advertised and they work as advertised.