On Wed, Aug 31, 2022 at 11:44:17PM -0300, Cesar Eduardo Barros wrote: > Em 30/08/2022 11:18, Seth Forshee escreveu: > > On Wed, Aug 17, 2022 at 08:31:56PM -0300, Cesar Eduardo Barros wrote: > > > #(902 - 907.5 @ ???), (30) > > > #(915 - 928 @ ???), (30) > > > > For these ranges I think you should use the same bandwidth as other > > rules in the database, i.e. 2 and 16 MHz. > > I found only two entries in the database with rules for the 900MHz > frequencies: US and "world". I don't think the US rule is a good model here; > it can use 16 MHz because it's a contiguous range, but the range for Brazil > has a hole in the middle. > > Since there's nothing that a found in these rules which mention a maximum > channel width, the correct width is probably the maximum which fits on each > piece of the range. That is, > > (902 - 907.5 @ 4), (30) > (915 - 928 @ 8), (30) > > As far as I could find, the hole between 907.5 and 915 exists because there > are three 2.5 MHz-wide GSM uplink channels there. However, I also found out > that there is a proposal within ANATEL (Consulta Pública 52 from 2021) to > expand it with another uplink channel at 905 - 907.5 (there are actually > five uplink channels in that proposal, the other one is at 898.5 - 901). I > have no idea when this will become official, or whether it has already > happened (and just wasn't reflected yet in the restricted radiation rules I > had researched), and what effect it would have on 802.11ah users. > > Given the uncertainty from that change, and given that so far there are > rules for the 900 MHz range in wireless-regdb only for the USA, it might be > wise to hold it for now and apply only the rest of the changes, without > these 900 MHz ranges. Sounds good to me. > > Otherwise I think these changes look good. If you can send a patch with > > the changes I would appreciate it, otherwise let me know and I can send > > a patch. > > I will prepare a patch tomorrow. Thanks! > > -- > Cesar Eduardo Barros > cesarb@xxxxxxxxxxxxx > > > _______________________________________________ > wireless-regdb mailing list > wireless-regdb@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/wireless-regdb
