Can't get more than 15km bwteen range between XBP9B-DPST-021 modules with 10dbi antennas each end. Checked the config that they are on max pwr (0.25w or 24dBm). When we put a spectrum analyser at 5m range from a module with a 0dBm antenna we read -70dBm. According to the Friss equn this corresponds to a module transmit power of -24dBm not +24dbm. The module averages about 125mA which seems more like a PL2 power level, low for a 250mW RF output? Does the module report RF power level during transmit that we could read somehow?