So I recently created a TTN community account and registered a gateway (MikroTik wAP LoRa8) and an end device (Browan IAQ temperature/humidity/etc sensor). In both cases I had to select the frequency plan. Since I’m located in Europe I knew that I have to select 863-870 Mhz - thus, the two available variants confused me:
- Europe 863-870 MHz (SF12 for RX2)
- Europe 863-870 MHz (SF9 for RX2 - recommended)
Searching the web didn’t turn up much pro/cons with respect to certain devices/use cases. Thus, I selected the recommended one for both the gateway and the end device.
Does one plan has better compatibility with real-world devices and the OTAA join method than the other?
Registering the gateway seems to have worked fine, i.e. I see periodic updates in the live view.
However, the OTAA join process for the sensor failed, i.e. I see the following error in the live view after that no more activity:
Decode uplink data message failure: Unknown FPort
So I suspect that the device isn’t compatible with the SF12-for-RX2 variant. Could that cause such errors?
Does the frequency plan has to be set to the same value for the gateway and all the devices that connect to gateway? Or is it fine if - say - the gateway is set to Europe 863 Mhz/SF9 for RX while a connected device is set to Europe 863 Mhz/SF12 for RX2?