The 250 Series RF transceiver module is designed for reliable bi-directional transfer of digital data over distances of up to 4 miles (6.4km, line of sight). Operating in the 902 to 928 MHz frequency band, the module is capable of generating +23.5dBm into a 50-ohm load and achieved an outstanding typical sensitivity of -105dBm. This high output power gives the module exceptional range and also helps overcome noisy environments at shorter ranges.