The USB-Yagi is a handy and high performance directional antenna which delivers a remarkable 1000mW+ horse power in the direction it is pointing with a HPBW (Half-Power BeamWidths) of 56 degree.

It connected to the WiFi signal 3.8km away from the University in direct line-of-sight and maintained a stable wireless connection at a sensitivity of -54dBm, which is amazingly powerful and have more rooms to go further than that.

via at danets, we enhance your wireless experience: YAGI WiFi antenna.