As the title suggests, I am looking to build or buy an inexpensive outdoor, multi-channel 915MHz LoRa gateway. Most that I have seen are not designed for North America, or/and are expensive. The RobotShop lists a single channel (indoor?) gateway by Dragino.
Any current suggestions for 2020 ?
Also, my nodes and receiver station are esp32-based. Can I create an esp32 based gateway? If I construct one based on a raspberry pi, will it be straightforward compatible for exchanging data, or are other modifications necessary?