I’m new to TTN but I’ve done a fair bit of research on LoRa/LoRaWAN and have a few basic questions for which I have been unable to find answers - or at least what appear to be definitive answers.
- There are combinations of SF and BW that appear to yield the same chirp rate (e.g., SF7/125k vs SF9/250k) and are therefore not orthogonal. If so, I take it they don’t play well together. Is this the case?
- I’ve seen SF6-SF12 mentioned as well as bandwidths of 62.5, 125, 250, and 500 kHz. However it appears that SF6 and 62.5kHz (and 500kHz?) are not always implemented or perhaps are not “legal”. Can you explain?