| Message ID | 9a460b85-4e1b-40b2-8691-3f999331c76b@www.fastmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | wireless-regdb: Update regulatory rules for China (CN) | expand |
On Fri, Feb 04, 2022 at 03:19:29PM +0000, Jiaxun Yang wrote: > China had updated regulations on ISM frequencies by > "工信部无〔2021〕129号". > > The new regulation effectives from Jan 1 2022. > > Update regdb accroading to it's attachment "2400MHz、5100MHz > 和 5800MHz 频段无线电发射设备射频技术要求". > > Announcement: https://wap.miit.gov.cn/zwgk/zcwj/wjfb/tz/art/2021/art_e4ae71252eab42928daf0ea620976e4e.html > Attachment: https://wap.miit.gov.cn/cms_files/filemanager/1226211233/attach/20219/d125301b13454551b698ff5afa49ca28.pdf > > Those documents are only available in Chinese. > > Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Thanks for the patch. I'm looking at a machine translation of the document, and based on that I think one change needs to be made, see below. If something was mistranslated or if I misunderstood, please let me know. > --- > db.txt | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/db.txt b/db.txt > index 6dbda3c..e6fd657 100644 > --- a/db.txt > +++ b/db.txt > @@ -346,11 +346,12 @@ country CL: DFS-JP > (5250 - 5330 @ 80), (20), DFS, AUTO-BW > (5735 - 5835 @ 80), (20) > > +# Source: > +# https://wap.miit.gov.cn/cms_files/filemanager/1226211233/attach/20219/d125301b13454551b698ff5afa49ca28.pdf > country CN: DFS-FCC > - (2402 - 2482 @ 40), (20) > - (5170 - 5250 @ 80), (23), AUTO-BW > - (5250 - 5330 @ 80), (23), DFS, AUTO-BW > - (5735 - 5835 @ 80), (30) > + (2400 - 2483.5 @ 40), (20) > + (5150 - 5350 @ 80), (23), DFS, AUTO-BW It looks like this range requires TPC, and if TPC is not supported the max EIRP needs to be lowered by 3 dBm. Since Linux does not support TPC, we need to reduce this power limit to 20 dBm. Thanks, Seth > + (5725 - 5850 @ 80), (33) > # 60 GHz band channels 1,4: 28dBm, channels 2,3: 44dBm > # ref: http://www.miit.gov.cn/n11293472/n11505629/n11506593/n11960250/n11960606/n11960700/n12330791.files/n12330790.pdf > (57240 - 59400 @ 2160), (28) > -- > 2.34.1.windows.1
在 2022/2/12 15:48, Seth Forshee 写道: > On Fri, Feb 04, 2022 at 03:19:29PM +0000, Jiaxun Yang wrote: >> China had updated regulations on ISM frequencies by >> "工信部无〔2021〕129号". >> >> The new regulation effectives from Jan 1 2022. >> >> Update regdb accroading to it's attachment "2400MHz、5100MHz >> 和 5800MHz 频段无线电发射设备射频技术要求". >> >> Announcement: https://wap.miit.gov.cn/zwgk/zcwj/wjfb/tz/art/2021/art_e4ae71252eab42928daf0ea620976e4e.html >> Attachment: https://wap.miit.gov.cn/cms_files/filemanager/1226211233/attach/20219/d125301b13454551b698ff5afa49ca28.pdf >> >> Those documents are only available in Chinese. >> >> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > Thanks for the patch. I'm looking at a machine translation of the > document, and based on that I think one change needs to be made, see > below. If something was mistranslated or if I misunderstood, please let > me know. Thanks for pointing. I asked a RF expert and he adviced you're right :-) v2 is on the way. Thanks. - Jiaxun
diff --git a/db.txt b/db.txt index 6dbda3c..e6fd657 100644 --- a/db.txt +++ b/db.txt @@ -346,11 +346,12 @@ country CL: DFS-JP (5250 - 5330 @ 80), (20), DFS, AUTO-BW (5735 - 5835 @ 80), (20) +# Source: +# https://wap.miit.gov.cn/cms_files/filemanager/1226211233/attach/20219/d125301b13454551b698ff5afa49ca28.pdf country CN: DFS-FCC - (2402 - 2482 @ 40), (20) - (5170 - 5250 @ 80), (23), AUTO-BW - (5250 - 5330 @ 80), (23), DFS, AUTO-BW - (5735 - 5835 @ 80), (30) + (2400 - 2483.5 @ 40), (20) + (5150 - 5350 @ 80), (23), DFS, AUTO-BW + (5725 - 5850 @ 80), (33) # 60 GHz band channels 1,4: 28dBm, channels 2,3: 44dBm # ref: http://www.miit.gov.cn/n11293472/n11505629/n11506593/n11960250/n11960606/n11960700/n12330791.files/n12330790.pdf (57240 - 59400 @ 2160), (28)
China had updated regulations on ISM frequencies by "工信部无〔2021〕129号". The new regulation effectives from Jan 1 2022. Update regdb accroading to it's attachment "2400MHz、5100MHz 和 5800MHz 频段无线电发射设备射频技术要求". Announcement: https://wap.miit.gov.cn/zwgk/zcwj/wjfb/tz/art/2021/art_e4ae71252eab42928daf0ea620976e4e.html Attachment: https://wap.miit.gov.cn/cms_files/filemanager/1226211233/attach/20219/d125301b13454551b698ff5afa49ca28.pdf Those documents are only available in Chinese. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- db.txt | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)