Thanks for the feedback. I have adjusted the rules as follows based on your suggestions and further research on FCC rules: country HK: DFS-ETSI (2400 - 2483.5 @ 40), (30) (5150 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR (5250 - 5350 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR (5470 - 5725 @ 160), (24), DFS (5725 - 5850 @ 80), (30) 1. The ranges have been adjusted to align with HK regulations. 2. For 2400-2483.5 MHz, max power is set to 1 W (30 dBm) based on [1] 47 CFR 15.247(b)(3). 3. For 5470-5725 MHz, max power is set to 250 mW (24 dBm) based on [2] 47 CFR 15.407(a)(2). 4. For 5725-5850 MHz, max power is set to 1 W (30 dBm) based on [3] 47 CFR 15.407(a)(3)(i). 5. 5725-5730 MHz (Channel 144) is already covered by the last range (5725-5850 MHz) so no changes are necessary. I have also cross-checked the limits to make sure they don't exceed those in the rules for US. The only difference in limits is in 5250-5350 MHz where HK regulations further restrict it to 200 mW (23 dBm). One last suggestion: I noticed 6 GHz band is allowed for outdoor use at a max of 14 dBm (Section 3.2 of [4]) though it's only for licensed devices. Can it also be added to the rules as below? (5925 - 6425 @ 160), (14) Thanks again for your time. [1] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-C/subject-group-ECFR2f2e5828339709e/section-15.247#p-15.247(b)(3) [2] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-E/section-15.407#p-15.407(a)(2) [3] https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15/subpart-E/section-15.407#p-15.407(a)(3)(i) [4] https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1081.pdf Best Regards, Tavio ------- Original Message ------- On Wednesday, March 22nd, 2023 at 01:12, Seth Forshee <sforshee@xxxxxxxxxx> wrote: > On Wed, Mar 15, 2023 at 02:37:16PM +0000, tavio.wong wrote: > > > Hello, > > > > According to section 2.1(b) of [1], the allowed peak output power in different bands is higher than currently defined in db.txt. I see that the rules for HK have not been updated since 2014. Since I don't understand sections 2.2 and 2.3, is there any reason for limiting the output power other than that the information is outdated? > > > > If not, I propose the rules for HK be updated as follows [section 2.1(a) also requires that 5.15-5.35 GHz be restricted to indoor use]: > > > Thanks for the proposed updates. I have a few adjustments to suggest, > below. > > > country HK: DFS-ETSI > > (2402 - 2482 @ 40), (36) > > > Here and in other rules I'd suggest adjusting the ranges based on the > regulations rather than aligning them based on wifi channels. So here > use 2400 - 2483.5 instead, etc. > > > (5170 - 5250 @ 80), (23), AUTO-BW, NO-OUTDOOR > > (5250 - 5330 @ 80), (23), DFS, AUTO-BW, NO-OUTDOOR > > (5490 - 5710 @ 160), (30), DFS > > > This range actually extends to 5725 MHz. But since the subsequent range > has looser restrictions, we can do what we've done with some other > countries and extend the rule to 5730 MHz to allow use of channel 144. > > The document references the technical requirements from the FCC rules > for 5150-5350 and 5470-5725 MHz, which requires TPC when the EIRP is > over 500 mW. The 5250-5350 MHz rule should be okay, but the 5470-5725 > MHz rule needs to have the max EIRP lowered to 500 mW (27 dBm). > > Thanks, > Seth > > > (5735 - 5835 @ 80), (36) > > > > Thank you for your consideration. > > > > [1] https://www.ofca.gov.hk/filemanager/ofca/en/content_401/hkca1039.pdf > > > > [2] https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt?id=7f7a9f7bc6011b072b5427eced1ff19261764e95#n751 > > > > Best regards, > > Tavio > > > > _______________________________________________ > > wireless-regdb mailing list > > wireless-regdb@xxxxxxxxxxxxxxxxxxx > > http://lists.infradead.org/mailman/listinfo/wireless-regdb _______________________________________________ wireless-regdb mailing list wireless-regdb@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/wireless-regdb
