I have set up a RAK7244 and I have LoRaWAN devices communicating using the ChirpStack Channel-plan configuration on the US_902_928. This works fine, and our plan moving forward is to use this for new sensors.
My problem is that I have several hundred old sensors in the field that I must be able to communicate with as well. Our old system used a single channel gateway operating at 915MHz with 125KHz BW and SF9.
Is it possible to set up the RAK2245 concentrator to use 7 LoRaWAN channels, and one custom channel at 915MHz?