According to the documentation on https://docs.pycom.io/lopy/library/network.html the init() method of the LoRa class accepts a frequency parameter to select the desired ISM band. However the note on the same page says:
"In LoRa.LORAWAN mode, only adr, public and tx_retries are used. All the otherparams will be ignored as theiy are handled by the LoRaWAN stack directly. On the other hand, these same 3 params are ignored in LoRa.LORA mode as they are only relevant for the LoRaWAN stack."
If this is true, how does one configure the transmitter for different regions (e.g. US vs EU)? Can someone please post a working example that shows how to configure the transmitter for the 915 band? BTW, raw LoRa mode seems to work fine.