I am researching the different ISM, RFID and SRD bands available in different countries, to make a clear list which lora frequencies can be used where.
The information available for Brazil is contradictory.
According to https://www.thethingsnetwork.org/wiki/Backend/Connect/Gateway:
“For example, Brazil supports 915-928 MHz, but these are only specified by the LoRa Alliance for Australia, so Brazilian gateways should connect to the Australian router.”
According to https://www.thethingsnetwork.org/wiki/LoRaWAN/Frequencies/Frequency-Plans:
“United States 902-928MHz - Also used in Canada and South America (except Brazil)”
But looking at http://www.gs1.org/docs/epc/uhf_regulations.pdf and http://www.americascompliance.com/wp-content/uploads/2011/08/506-English_1.pdf, Article 40 VI, the available frequencies are:
902 - 907.5MHz and 915 - 928MHz
The US frequency plan uses 903.9 - 905.3MHz and 923.3 - 927.5MHz. The US frequency plan therefore falls within the allowed ranges for Brazil.
So my question is: Why does all the information on TTN’s wiki and forum suggest that the Australian frequency plan be used in Brazil, while the US frequency plan, which is used in the rest of the Americas fall within the allowed ranges in Brazil?