Re: [PATCH] wireless-regdb: Update regulatory rules for Brazil (BR) on 6GHz

[Marcos Alano <marcoshalano@gmail.com>]

On 26/06/2025 05:16, Chen-Yu Tsai wrote:
> On Thu, Jun 26, 2025 at 4:12 PM Chen-Yu Tsai <wens@kernel.org> wrote:
>>
>> On Mon, Jun 2, 2025 at 8:15 PM Marcos Alano <marcoshalano@gmail.com> wrote:
>>>
>>> Change rules for 6GHz on Brazil removing `NO-IR` and adding
>>> `AUTO-BW` so the 6GHz band can be used.
>>
>> AUTO-BW is not needed since there are no adjacent bands that can be
>> combined.
>>
>>> Add the relevant normatives in comments.
>>>
>>> Signed-off-by: Marcos Alano <marcoshalano@gmail.com>
>>> ---
>>>   db.txt | 6 +++---
>>>   1 file changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/db.txt b/db.txt
>>> index e331d4f..3b0adbb 100644
>>> --- a/db.txt
>>> +++ b/db.txt
>>> @@ -321,8 +321,8 @@ country BO: DFS-JP
>>>
>>>   # Source:
>>>   # https://www.gov.br/anatel/pt-br/regulado/radiofrequencia/radiacao-restrita
>>> -# https://informacoes.anatel.gov.br/legislacao/resolucoes/2017/936-resolucao-680
>>> -# https://informacoes.anatel.gov.br/legislacao/atos-de-certificacao-de-produtos/2017/1139-ato-14448
>>> +# https://informacoes.anatel.gov.br/legislacao/resolucoes/2025/2001-resolucao-772
>>> +# https://informacoes.anatel.gov.br/legislacao/atos-de-requisitos-tecnicos-de-gestao-do-espectro/2024/1920-ato-915
>>>   country BR: DFS-FCC
>>>          (2400 - 2483.5 @ 40), (30)
>>>          # The next three ranges have been reduced by 3dB, could be increased
>>> @@ -331,7 +331,7 @@ country BR: DFS-FCC
>>>          (5250 - 5350 @ 80), (27), NO-OUTDOOR, DFS, AUTO-BW
>>>          (5470 - 5725 @ 160), (27), DFS, AUTO-BW
>>>          (5725 - 5850 @ 80), (30), AUTO-BW
>>> -       (5925 - 7125 @ 320), (12), NO-OUTDOOR, NO-IR
>>> +       (5925 - 7125 @ 320), (30), NO-OUTDOOR, AUTO-BW
> 
> Also, the 12 dBm power limit is warranted by the PSD limit of -1 dBm / MHz.
> At the smallest 20 MHz channel width, that converts to around 12 dBm.
You can see here: 
https://informacoes.anatel.gov.br/legislacao/atos-de-requisitos-tecnicos-de-gestao-do-espectro/2024/1920-ato-915, 
in the items IX.4 IX.5 from table IX, that the maximum allowed dBm is 38dBm.

That seems to align with the 40GHz range, where the maximum dBm is 40, 
but it's up to you.

Marcos.
> 
> ChenYu
> 
>>>          # EIRP=40dBm (43dBm peak)
>>>          (57000 - 71000 @ 2160), (40)
>>>
>>> --
>>> 2.49.0
>>>
>>>

-- 
Marcos Alano