I was just driving around city with node in my car. I have send at SF11 and tried on SF12 without ADR, and always lost node when outside 115 zone. But now after few days I see nodes with -120 RSSI so everything seems fine now. Thanks.
At present, our 831 module in the same set of hardware only supports a band, you buy what band to support what band.
Do you want to say CN433?
TTN platform is not support CN433, so our engineers are preparing to connect RAK831 + PI3 to LoRaIOT, this platform is to support CN433.
GPS module will not affect the data transceiver, GPS module is only to upload RAK831 gateway location information to the network server.