On Tue, Oct 31, 2017 at 10:53:18PM +0100, Per Mejdal Rasmussen wrote: > Hi > > I have taken the time research which frequencies and power levels are > allowed for WiFi in Denmark. So db.txt for wireless-regdb can be updated. Thanks for this information, and apologies for taking so long to review this. A few comments. > Allowed WiFi frequencies in Denmark for WiFi: > --------------------------------------------- > 2400,0-2483,5 MHz > 5150,0-5350,0 MHz > 5470,0-5725,0 MHz > 5725,0-5875,0 MHz > 57-66 GHz > > Source: https://www.retsinformation.dk/Forms/R0710.aspx?id=189932 > Search for "RLAN". The website is owned by the Danish government. > > > Maximum transmission strength and usage > --------------------------------------- > 2400-2483,5 MHz ? mW/MHz 100 mW EIRP > 5150-5250 MHz 10 mW/MHz 200 mW EIRP Both in/outdoor allowed > 5470-5725 MHz 50 mW/MHz 1 W EIRP Both in/outdoor allowed > 5725-5875 MHz 200 mW/MHz 4 W EIRP BFWA only, 5795-5815 excluded > 5725-5875 MHz ? mW/MHz 25 mW EIRP Short range devices > 57-66 GHz 20 mW/MHz 10 W EIRP No fixed outdoor install > > DFS is required for 5250-5350, 5470-5725 and because of ETSI EN 301 893 > DFS is required for 5725-5875 for BFWA, because of ETSI EN 302 502 > > Sources: > 5GHz: https://erhvervsstyrelsen.dk/sites/default/files/007_interface-datanet_5-6_ghz.pdf.pdf > 60GHz: > https://erhvervsstyrelsen.dk/sites/default/files/radiograenseflader-63.pdf > The website is owned by the Danish government. > > > Outdated content of db.txt: > --------------------------- > country DK: DFS-ETSI > (2402 - 2482 @ 40), (20) > (5170 - 5250 @ 80), (20), AUTO-BW > (5250 - 5330 @ 80), (20), DFS, AUTO-BW > (5490 - 5710 @ 160), (27), DFS > # 60 GHz band channels 1-4, ref: Etsi En 302 567 > (57000 - 66000 @ 2160), (40) > > > Suggested fix: > -------------- > country DK: DFS-ETSI > (2400 - 2483.5 @ 40), (20) > (5150 - 5250 @ 80), (23), AUTO-BW Based on the translation of the document, I think this is fine. > (5250 - 5350 @ 80), (23), DFS, AUTO-BW I believe this range requires TPC, which we don't support. So based on ETSI EN 301 893 the maximum allowed without TPC is 20 dBm, i.e. what's is what's currently in the database. > (5470 - 5725 @ 160), (30), DFS Again this requires TPC, so based on ETSI EN 301 893 this has to remain at 27 dBm. > # Short Range Devices (ETSI EN 300 440-1) > (5725 - 5875 @ 80), (14) The document you linked to only specifies this range being usable for fixed wireless access, so I don't think it belongs in the database. > # Broadband Fixed Wireless Access (ETSI EN 302 502) > (5725 - 5795 @ 40), (36), PTP_ONLY, DFS > (5815 - 5875 @ 40), (36), PTP_ONLY, DFS I'm not sure we should add this ... on the one hand I'm not certain whether or not it's meant to apply to fixed wireless access or other P2P sorts of connections, and on the other hand the kernel doesn't appear to do anything different if this flag is set. So I think it's not going to be safe to add these rules. > # 60 GHz band channels 1-4 (ETSI EN 302 567) > (57000 - 66000 @ 2160), (40), NO-OUTDOOR This one looks okay. Thanks, Seth
