Hello, i have buy two T-Beam Supreme and use it with legacy protocol. When i start this both setups, and place it 2 meters over the floor, without any obstacles, i become a range from 0.3km (maximum). If it possible to tuning the transmition? I tested much more antennas. This 0.3km is the best what i can reach it.
I'm not a specialist. And hope that I understand your answers at all. But I would still be happy to get some! Thanks!