I do not know why omni signal is very small even though I’m at a small distance 
.I use the wireless card r52 in RouterBOARD 411.RouterBOARD LAN is connected to Poe with UTP cable at 20 meters distance.TL-ANT2412D is OMNI that I used.
I do not know why omni signal is very small even though I’m at a small distance .I use the wireless card r52 in RouterBOARD 411.RouterBOARD LAN is connected to Poe with UTP cable at 20 meters distance.TL-ANT2412D is OMNI that I used.