I have a Dragino LoRa module HaT which is compatible with RaspberryPi version 3 and older. I wanted to create a LoRa gateway(single channel) for personal use and evaluation how things work.
I saw that the HaT is compatible with frequencies as follows...
868 MHZ/433 MHZ/915 MHZ(Pre-configure in factory)
The region I am living right now(India) does not have 868MhZ as license free band and also not other two remaining frequencies supported by this shield. However here frequencies from 865 to 867MhZ are license free.
These has created confusion to me weather I could use this shield for my application. Some internet discussion also suggest that the module can be configured to 687 MhZ to be used.
Other suggest even that the 868 MhZ can also be used license free as channels are overlapping with 867 MhZ frequency. This has created confusion to me. It would be helpful to ask and get some insight how these frequency division works.?
On internet there are only a few key information but not details about how it distributed.