[PATCH] wireless-regdb: Remove DFS flag from 60 GHz band for Togo (TG)

[Chen-Yu Tsai]

On Mon, Jul 27, 2026 at 5:00 PM Louis Kotze <loukot at gmail.com> wrote:
>
> Commit aad0c26 ("wireless-regdb: Update regulatory info for Togo (TG)
> for 2022") added a DFS flag to every band in the Togo entry, including
> the 57-66 GHz band.
>
> The source regulation, ARCEP Decision N° 226/ARCEP/DG/22 of 30 December
> 2022, Annexe 2 section 9 ("Dispositifs de transmission de données à
> large bande"), states for the 57-66 GHz row:
>
>   57 - 66 GHz | PIRE de 40 dBm et densité de 13 dBm/MHz | Des
>   techniques d'accès au spectre et d'atténuation des interférences
>   doivent être utilisées. | Les installations extérieures fixes sont
>   exclues.
>
> Unlike the 5150-5350 MHz and 5470-5850 MHz rows, which explicitly
> require "des techniques de sélection automatique de fréquences (DFS)",
> the 57-66 GHz row requires only generic spectrum access and
> interference mitigation techniques. DFS is not mentioned. There is no
> radar service to protect in this band, and ETSI EN 302 567 does not
> specify DFS for it.
>
> The same commit also set DFS on the 2400-2483.5 MHz and 5925-6425 MHz
> rows. Those are left as they are: the decision does print "(DFS)" in
> both, so dropping the flag there would go further than the source
> allows, even though DFS is a 5 GHz radar-avoidance mechanism and reads
> oddly in those bands. The 60 GHz row is the only one with no basis in
> the text.
>
> Drop the DFS flag accordingly, and normalise the missing space in the
> bandwidth field on the same line.
>
> Reference:
>   https://arcep.tg/wp-content/uploads/2022/12/Decision-226-22-Determinant-les-categories-et-conditions-techniques-dexploitation-des-appareils-de-faible-puissance-et-de-faible-portee.pdf
>   (Annexe 2, section 9, page 21)
>
> Signed-off-by: Louis Kotze <loukot at gmail.com>

Makes sense to me. Will give it a few days before merging.

Reviewed-by: Chen-Yu Tsai <wens at kernel.org>

> ---
>  db.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/db.txt b/db.txt
> index 72f7900..c6217fa 100644
> --- a/db.txt
> +++ b/db.txt
> @@ -1962,7 +1962,7 @@ country TG: DFS-ETSI
>         (5150 - 5350 @ 80), (20), DFS
>         (5470 - 5850 @ 160), (27), DFS
>         (5925 - 6425 @ 320), (23), DFS, NO-OUTDOOR
> -       (57000 - 66000 @2160), (40), DFS
> +       (57000 - 66000 @ 2160), (40)
>
>  # Source:
>  # https://ratchakitcha.soc.go.th/documents/140D100S0000000004000.pdf
> --
> 2.55.0
>