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Date:      Tue, 19 Aug 2025 18:51:02 +0300
From:      Andriy Gapon <avg@freebsd.org>
To:        "Bjoern A. Zeeb" <bz@FreeBSD.org>
Cc:        Adrian Chadd <adrian@freebsd.org>, FreeBSD wireless mailing list <wireless@freebsd.org>
Subject:   Re: rtwn/rtl8821au: strange issue with 5GHz channels
Message-ID:  <5bc0117c-473a-475f-9c1c-14b8cd6a5457@freebsd.org>
In-Reply-To: <93987s5n-75o9-9oq6-7r07-5p1s2ns3q5s2@SerrOFQ.bet>
References:  <4cb1c608-d534-4bfb-8cc9-92251000e0fd@FreeBSD.org> <CAJ-VmonQ7x%2BX=g5Gd4ZsJ1Ku3uTNKBEH34D=n8Xnw1nkAKudrw@mail.gmail.com> <9243aad2-20d1-4c17-8f9a-f5b682eb1f85@freebsd.org> <93987s5n-75o9-9oq6-7r07-5p1s2ns3q5s2@SerrOFQ.bet>

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On 19/08/2025 18:38, Bjoern A. Zeeb wrote:
> What's your country set to on FreeBSD?  I am asking as UA is set to
> "none" in regdomain.xml which means at best it'll do HT most likely?
> I haven't checked the freqbands supported there.

It's also UA.
As in "regdomain NONE country UA".

> What does ifconfig -v wlan0 show chan and ifconfig -v wlan0 show regdomain show?
I am guessing that you meant 'ifconfig -v wlan0 list chan', etc here, because 
ifconfig complains about "show".

$ ifconfig -v wlan0 list regdomain
:regdomain NONE country UA anywhere -ecm
Channel   1 : 2412      MHz 11b          Channel  48 : 5240*     MHz 11a
Channel   1 : 2412      MHz 11g          Channel  48 : 5240*     MHz 11a ht/20
Channel   1 : 2412      MHz 11g ht/20    Channel  48 : 5240*     MHz 11a ht/40-
Channel   1 : 2412      MHz 11g ht/40+   Channel  52 : 5260*     MHz 11a
Channel   2 : 2417      MHz 11b          Channel  52 : 5260*     MHz 11a ht/20
Channel   2 : 2417      MHz 11g          Channel  52 : 5260*     MHz 11a ht/40+
Channel   2 : 2417      MHz 11g ht/20    Channel  56 : 5280*     MHz 11a
Channel   2 : 2417      MHz 11g ht/40+   Channel  56 : 5280*     MHz 11a ht/20
Channel   3 : 2422      MHz 11b          Channel  56 : 5280*     MHz 11a ht/40-
Channel   3 : 2422      MHz 11g          Channel  60 : 5300*     MHz 11a
Channel   3 : 2422      MHz 11g ht/20    Channel  60 : 5300*     MHz 11a ht/20
Channel   3 : 2422      MHz 11g ht/40+   Channel  60 : 5300*     MHz 11a ht/40+
Channel   4 : 2427      MHz 11b          Channel  64 : 5320*     MHz 11a
Channel   4 : 2427      MHz 11g          Channel  64 : 5320*     MHz 11a ht/20
Channel   4 : 2427      MHz 11g ht/20    Channel  64 : 5320*     MHz 11a ht/40-
Channel   4 : 2427      MHz 11g ht/40+   Channel 100 : 5500*     MHz 11a
Channel   5 : 2432      MHz 11b          Channel 100 : 5500*     MHz 11a ht/20
Channel   5 : 2432      MHz 11g          Channel 100 : 5500*     MHz 11a ht/40+
Channel   5 : 2432      MHz 11g ht/20    Channel 104 : 5520*     MHz 11a
Channel   5 : 2432      MHz 11g ht/40+   Channel 104 : 5520*     MHz 11a ht/20
Channel   5 : 2432      MHz 11g ht/40-   Channel 104 : 5520*     MHz 11a ht/40-
Channel   6 : 2437      MHz 11b          Channel 108 : 5540*     MHz 11a
Channel   6 : 2437      MHz 11g          Channel 108 : 5540*     MHz 11a ht/20
Channel   6 : 2437      MHz 11g ht/20    Channel 108 : 5540*     MHz 11a ht/40+
Channel   6 : 2437      MHz 11g ht/40+   Channel 112 : 5560*     MHz 11a
Channel   6 : 2437      MHz 11g ht/40-   Channel 112 : 5560*     MHz 11a ht/20
Channel   7 : 2442      MHz 11b          Channel 112 : 5560*     MHz 11a ht/40-
Channel   7 : 2442      MHz 11g          Channel 116 : 5580*     MHz 11a
Channel   7 : 2442      MHz 11g ht/20    Channel 116 : 5580*     MHz 11a ht/20
Channel   7 : 2442      MHz 11g ht/40+   Channel 116 : 5580*     MHz 11a ht/40+
Channel   7 : 2442      MHz 11g ht/40-   Channel 120 : 5600*     MHz 11a
Channel   8 : 2447      MHz 11b          Channel 120 : 5600*     MHz 11a ht/20
Channel   8 : 2447      MHz 11g          Channel 120 : 5600*     MHz 11a ht/40-
Channel   8 : 2447      MHz 11g ht/20    Channel 124 : 5620*     MHz 11a
Channel   8 : 2447      MHz 11g ht/40-   Channel 124 : 5620*     MHz 11a ht/20
Channel   9 : 2452      MHz 11b          Channel 124 : 5620*     MHz 11a ht/40+
Channel   9 : 2452      MHz 11g          Channel 128 : 5640*     MHz 11a
Channel   9 : 2452      MHz 11g ht/20    Channel 128 : 5640*     MHz 11a ht/20
Channel   9 : 2452      MHz 11g ht/40-   Channel 128 : 5640*     MHz 11a ht/40-
Channel  10 : 2457      MHz 11b          Channel 132 : 5660*     MHz 11a
Channel  10 : 2457      MHz 11g          Channel 132 : 5660*     MHz 11a ht/20
Channel  10 : 2457      MHz 11g ht/20    Channel 132 : 5660*     MHz 11a ht/40+
Channel  10 : 2457      MHz 11g ht/40-   Channel 136 : 5680*     MHz 11a
Channel  11 : 2462      MHz 11b          Channel 136 : 5680*     MHz 11a ht/20
Channel  11 : 2462      MHz 11g          Channel 136 : 5680*     MHz 11a ht/40-
Channel  11 : 2462      MHz 11g ht/20    Channel 140 : 5700*     MHz 11a
Channel  11 : 2462      MHz 11g ht/40-   Channel 140 : 5700*     MHz 11a ht/20
Channel  12 : 2467*     MHz 11b          Channel 149 : 5745*     MHz 11a
Channel  12 : 2467*     MHz 11g          Channel 149 : 5745*     MHz 11a ht/20
Channel  12 : 2467*     MHz 11g ht/20    Channel 149 : 5745*     MHz 11a ht/40+
Channel  13 : 2472*     MHz 11b          Channel 153 : 5765*     MHz 11a
Channel  13 : 2472*     MHz 11g          Channel 153 : 5765*     MHz 11a ht/20
Channel  13 : 2472*     MHz 11g ht/20    Channel 153 : 5765*     MHz 11a ht/40-
Channel  36 : 5180*     MHz 11a          Channel 157 : 5785*     MHz 11a
Channel  36 : 5180*     MHz 11a ht/20    Channel 157 : 5785*     MHz 11a ht/20
Channel  36 : 5180*     MHz 11a ht/40+   Channel 157 : 5785*     MHz 11a ht/40+
Channel  40 : 5200*     MHz 11a          Channel 161 : 5805*     MHz 11a
Channel  40 : 5200*     MHz 11a ht/20    Channel 161 : 5805*     MHz 11a ht/20
Channel  40 : 5200*     MHz 11a ht/40-   Channel 161 : 5805*     MHz 11a ht/40-
Channel  44 : 5220*     MHz 11a          Channel 165 : 5825*     MHz 11a
Channel  44 : 5220*     MHz 11a ht/20    Channel 165 : 5825*     MHz 11a ht/20
Channel  44 : 5220*     MHz 11a ht/40+

'list chan' reports the same information.

-- 
Andriy Gapon


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