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.
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?
I hope @htdvisser or @telkamp knows. Or is there perhaps anyone around who is more familiar with the Brazilian regulations?
Hi, I’ve just updated the TTN frequencies by country page with the current brazilian regulations issues (…/frequencies-by-country.html).
The information saying that the US902-928 should be used in Brazil was wrong, since the 907.5 to 915 band is reserved, not a ISM unlicensed, as you saw at the GS1 website.
So, besides being available the 902-907.5 band, by the LoRaWAN regional parameters v1.1rb the channel plan to be used in Brazil is AU915.
The Brazilian Telecommunications Agency (ANATEL) current reulations are: http://www.anatel.gov.br/legislacao/resolucoes/2017/936-resolucao-680 , Article 10 and http://www.anatel.gov.br/legislacao/atos-de-requisitos-tecnicos-de-certificacao/2017/1139-ato-14448 , Section 10.2. Unfortunately available only in Portuguese.
Indeed, now the picture of the map on https://www.thethingsnetwork.org/docs/lorawan/frequencies-by-country.html should be updated, where Brazil must be green instead of orange. The other countries of Latin America cannot fully follow the US902-928 scheme as far as I know too, so they should be gray as it is not covered by LoRa Alliance regional parameters.
