Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
Hi, my main problem isn't the 17dBm on the lower 5ghz channels. I can happily use a higher channel with DFS and 250mW (which seems to be the hardware limit). My main problem is the DFS implementation which seems to limit 2.4ghz to a lower value: I have two similar regulatory entries: country DF: DFS-FCC (2402 - 2472 @ 40), (30) (5170 - 5250 @ 80), (17), AUTO-BW (5250 - 5330 @ 80), (23), DFS, AUTO-BW (5490 - 5730 @ 160), (23), DFS (5735 - 5835 @ 80), (30) country DG: DFS-ETSI (2402 - 2472 @ 40), (30) (5170 - 5250 @ 80), (17), AUTO-BW (5250 - 5330 @ 80), (23), DFS, AUTO-BW (5490 - 5730 @ 160), (23), DFS (5735 - 5835 @ 80), (30) root@ap02:~# iw reg set DF root@ap02:~# iwinfo wlan0 txp 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) 21 dBm ( 125 mW) 22 dBm ( 158 mW) 23 dBm ( 199 mW) 24 dBm ( 251 mW) 25 dBm ( 316 mW) 26 dBm ( 398 mW) 27 dBm ( 501 mW) * 28 dBm ( 630 mW) 29 dBm ( 794 mW) root@ap02:~# iw reg set DG root@ap02:~# iw phy phy0 set txpower fixed 2000 root@ap02:~# iwinfo wlan0 txp 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) 21 dBm ( 125 mW) 22 dBm ( 158 mW) 23 dBm ( 199 mW) 24 dBm ( 251 mW) 25 dBm ( 316 mW) 26 dBm ( 398 mW) 27 dBm ( 501 mW) 28 dBm ( 630 mW) 29 dBm ( 794 mW) root@ap02:~# You see what I mean? The problem is not the power level in the regulatory database. The problem is that the software thinks it's right to limit it to 17dBm. It also does not depend which antenna gain is set via iw of what power levels are defined in the regulatory database. Everything higher than 17dBm is ignored and set to 17dBm, on 2.4Ghz. Since the only difference is the DFS regulatory information, I think the part parsing those information from the database is faulty. Maybe it thinks that it's okay to limit it to 17dBm because DFS is not used on 2.4Ghz, which is sonsense. I don't think that any part in hardware is causing the problem. I can use higher power levels on 2.4Ghz when using DFS-FCC or no regulatory limitations at all. Thanks Nico On 07/30/2015 06:08 PM, Gerald Matzka wrote: Ben is right, take a look at https://forum.openwrt.org/viewtopic.php?id=42197 In newer Openwrt versions the kernel modules are compiled to respect the reg-domain settings programmed in hardware. Kind regards ... sent from my iPhone Am 30.07.2015 um 17:11 schrieb Ben West b...@gowasabi.net mailto:b...@gowasabi.net: You can look up your respective country's spectrum regulations. It is possible prior versions OpenWRT didn't fully conform to each regulatory domain and were fixed in more recent versions (just as the converse is possible). For example, for the USA, here is a table of power limits for the 2.4GHz and 5GHz bands. Channels 36-48 are limited to 16dBm transmitter power. http://www.air802.com/fcc-rules-and-regulations.html On Thu, Jul 30, 2015 at 3:32 AM, Nicola von Thadden n...@vthadden.de mailto:n...@vthadden.de wrote: Hi, I also thought to have used 20dBm or 23dBm in earlier releases (AA). Is there a way to find out to which txpower levels the 5Ghz transceiver is limited? I think the driver reads them out, maybe there is a way to print them on the cmd? But my main problem is the 17dBm on 2.4Ghz when setting DFS-ETSI countries. I don't think that it is a problem of the hardware but of the software parsing the regdom. Maybe there is a fixed limit of 17dBm on non-DFS channels, even when DFS is not required, which is not very useful. Does anyone have an idea where that could be set? My search in the source code had no results until now, where it could be. Thanks Nico On 07/29/2015 06:21 PM, Atanas Vladimirov wrote: https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net mailto:b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
You can look up your respective country's spectrum regulations. It is possible prior versions OpenWRT didn't fully conform to each regulatory domain and were fixed in more recent versions (just as the converse is possible). For example, for the USA, here is a table of power limits for the 2.4GHz and 5GHz bands. Channels 36-48 are limited to 16dBm transmitter power. http://www.air802.com/fcc-rules-and-regulations.html On Thu, Jul 30, 2015 at 3:32 AM, Nicola von Thadden n...@vthadden.de wrote: Hi, I also thought to have used 20dBm or 23dBm in earlier releases (AA). Is there a way to find out to which txpower levels the 5Ghz transceiver is limited? I think the driver reads them out, maybe there is a way to print them on the cmd? But my main problem is the 17dBm on 2.4Ghz when setting DFS-ETSI countries. I don't think that it is a problem of the hardware but of the software parsing the regdom. Maybe there is a fixed limit of 17dBm on non-DFS channels, even when DFS is not required, which is not very useful. Does anyone have an idea where that could be set? My search in the source code had no results until now, where it could be. Thanks Nico On 07/29/2015 06:21 PM, Atanas Vladimirov wrote: https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de mailto:mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de mailto:n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the mentioned behaviour, 2.4Ghz is limited at 17dBm. It also does not depend on which values are set in
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
What's more, The regulation is on the signal strength of the radiated signal, not the transmitter power. so if you go to max transmitter power and add a better antenna, you actually exceed the limits. There is apparently an exception to this for point-to-point use. But you still can't use full power + high gain antenna David Lang On Thu, 30 Jul 2015, Ben West wrote: You can look up your respective country's spectrum regulations. It is possible prior versions OpenWRT didn't fully conform to each regulatory domain and were fixed in more recent versions (just as the converse is possible). For example, for the USA, here is a table of power limits for the 2.4GHz and 5GHz bands. Channels 36-48 are limited to 16dBm transmitter power. http://www.air802.com/fcc-rules-and-regulations.html On Thu, Jul 30, 2015 at 3:32 AM, Nicola von Thadden n...@vthadden.de wrote: Hi, I also thought to have used 20dBm or 23dBm in earlier releases (AA). Is there a way to find out to which txpower levels the 5Ghz transceiver is limited? I think the driver reads them out, maybe there is a way to print them on the cmd? But my main problem is the 17dBm on 2.4Ghz when setting DFS-ETSI countries. I don't think that it is a problem of the hardware but of the software parsing the regdom. Maybe there is a fixed limit of 17dBm on non-DFS channels, even when DFS is not required, which is not very useful. Does anyone have an idea where that could be set? My search in the source code had no results until now, where it could be. Thanks Nico On 07/29/2015 06:21 PM, Atanas Vladimirov wrote: https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de mailto:mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de mailto:n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
Hi, I also thought to have used 20dBm or 23dBm in earlier releases (AA). Is there a way to find out to which txpower levels the 5Ghz transceiver is limited? I think the driver reads them out, maybe there is a way to print them on the cmd? But my main problem is the 17dBm on 2.4Ghz when setting DFS-ETSI countries. I don't think that it is a problem of the hardware but of the software parsing the regdom. Maybe there is a fixed limit of 17dBm on non-DFS channels, even when DFS is not required, which is not very useful. Does anyone have an idea where that could be set? My search in the source code had no results until now, where it could be. Thanks Nico On 07/29/2015 06:21 PM, Atanas Vladimirov wrote: https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de mailto:mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de mailto:n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the mentioned behaviour, 2.4Ghz is limited at 17dBm. It also does not depend on which values are set in the regulatory database for the 2.4Ghz channels, anything over 17dBm will be limited to 17dBm. running iw phy phy0 set txpower fixed 2000 gives no error but does not change it to 20dBm. Changing the value to anything below 17dBm works though. country DE: DFS-FCC # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
Ben is right, take a look at https://forum.openwrt.org/viewtopic.php?id=42197 In newer Openwrt versions the kernel modules are compiled to respect the reg-domain settings programmed in hardware. Kind regards ... sent from my iPhone Am 30.07.2015 um 17:11 schrieb Ben West b...@gowasabi.net: You can look up your respective country's spectrum regulations. It is possible prior versions OpenWRT didn't fully conform to each regulatory domain and were fixed in more recent versions (just as the converse is possible). For example, for the USA, here is a table of power limits for the 2.4GHz and 5GHz bands. Channels 36-48 are limited to 16dBm transmitter power. http://www.air802.com/fcc-rules-and-regulations.html On Thu, Jul 30, 2015 at 3:32 AM, Nicola von Thadden n...@vthadden.de wrote: Hi, I also thought to have used 20dBm or 23dBm in earlier releases (AA). Is there a way to find out to which txpower levels the 5Ghz transceiver is limited? I think the driver reads them out, maybe there is a way to print them on the cmd? But my main problem is the 17dBm on 2.4Ghz when setting DFS-ETSI countries. I don't think that it is a problem of the hardware but of the software parsing the regdom. Maybe there is a fixed limit of 17dBm on non-DFS channels, even when DFS is not required, which is not very useful. Does anyone have an idea where that could be set? My search in the source code had no results until now, where it could be. Thanks Nico On 07/29/2015 06:21 PM, Atanas Vladimirov wrote: https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de mailto:mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de mailto:n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
https://dev.openwrt.org/ticket/20201 On BB I used 20dBm for both 2.4 and 5GHz on the same router. Sent with AquaMail for Android http://www.aqua-mail.com On 29 юли 2015 г. 18:40:10 Ben West b...@gowasabi.net wrote: This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the mentioned behaviour, 2.4Ghz is limited at 17dBm. It also does not depend on which values are set in the regulatory database for the 2.4Ghz channels, anything over 17dBm will be limited to 17dBm. running iw phy phy0 set txpower fixed 2000 gives no error but does not change it to 20dBm. Changing the value to anything below 17dBm works though. country DE: DFS-FCC # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thad does work. The only change to the entry above is DFS-FCC instead of DFS-ETSI. I can now select any powerlevel between 1 and 20dBm and it is also reported as being used: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) * 20 dBm ( 100 mW) I have no idea why but there seems to be a bug in the code parsing the DFS regulations, limiting 2.4Ghz to lot lower values than allowed. Changing it to DFS-FCC works for using the applicaple output power but does not seem to be in compliance which German law. Do you have an idea where the problem could
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the mentioned behaviour, 2.4Ghz is limited at 17dBm. It also does not depend on which values are set in the regulatory database for the 2.4Ghz channels, anything over 17dBm will be limited to 17dBm. running iw phy phy0 set txpower fixed 2000 gives no error but does not change it to 20dBm. Changing the value to anything below 17dBm works though. country DE: DFS-FCC # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thad does work. The only change to the entry above is DFS-FCC instead of DFS-ETSI. I can now select any powerlevel between 1 and 20dBm and it is also reported as being used: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) * 20 dBm ( 100 mW) I have no idea why but there seems to be a bug in the code parsing the DFS regulations, limiting 2.4Ghz to lot lower values than allowed. Changing it to DFS-FCC works for using the applicaple output power but does not seem to be in compliance which German law. Do you have an idea where the problem could be? I'm happy to try out more builds and future versions. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration (is it possible to get them in a human readable form somehow? The hexdump is not really readable and I have not been able to find the code which pases them) or because these channels are considered as edge-channels and someone thought it would be safe to limit the power, to not disturb any other systems running on even lower channels. The latter explanation is kind of weird because it would make no sense to limit these 4 channels but no other ones. I find it especially strange because that is typically the job of regulatory authorities, to define those
Re: [OpenWrt-Devel] [OpenWrt] 2.4Ghz limited to 50mW in DFS-ETSI
This is what I observe running Barrier Breaker on UBNT M5 products, too. I believe the 17dBm limit is intentional, i.e. per regulation. The 30dBm tx power limit applies to channels 149 and above, I believe. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either because of the factory calibration On Wed, Jul 29, 2015 at 10:25 AM, Gerald Matzka mgeral...@yahoo.de wrote: Well, it looks like the txpower of your wdnr3800 is limited to 17dBm because of the hardware reg-domain settings. Kind regards, ... sent from my iPhone Am 29.07.2015 um 10:43 schrieb Nicola von Thadden n...@vthadden.de: Hi, I have this strange behaviour down below, for which I also opened a ticket because I think this should not be like that ;) Does anyone have an idea where the problem could originate from and how to fix it? Thanks Nico On 07/29/2015 12:37 AM, OpenWrt wrote: #20222: 2.4Ghz limited to 50mW in DFS-ETSI --+-- Reporter: nicoduck | Owner: developers Type: defect| Status: new Priority: normal| Milestone: Chaos Calmer (trunk) Component: kernel|Version: Trunk Keywords: wndr3800 | --+-- I have got a Netgear WNDR 3800 running with openwrt since quite a while. I now upgraded to the latest version (trunk) and wanted to use WLAN within the regulations here in Germany but also wanted to max out the output power (within the regulations). Switching the country to Germany limits the maximum output power to 17dBm, although it does show as being limited on 20dBm: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) * 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) 20 dBm ( 100 mW) What I did: reset the device, flash it with various builts from trunk and try to figure out what was going on. I now modified my regdb and was able to isolate the source of the problem: country DE: DFS-ETSI # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thas does not work and has the mentioned behaviour, 2.4Ghz is limited at 17dBm. It also does not depend on which values are set in the regulatory database for the 2.4Ghz channels, anything over 17dBm will be limited to 17dBm. running iw phy phy0 set txpower fixed 2000 gives no error but does not change it to 20dBm. Changing the value to anything below 17dBm works though. country DE: DFS-FCC # entries 279004 and 280006 (2400 - 2483.5 @ 40), (100 mW) # entry 303005 (5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW # entries 304002 and 305002 (5250 - 5350 @ 80), (100 mW), NO-OUTDOOR, DFS, AUTO-BW # entries 308002, 309001 and 310003 (5470 - 5725 @ 160), (500 mW), DFS # 60 gHz band channels 1-4, ref: Etsi En 302 567 (57000 - 66000 @ 2160), (40) Thad does work. The only change to the entry above is DFS-FCC instead of DFS-ETSI. I can now select any powerlevel between 1 and 20dBm and it is also reported as being used: root@OpenWrt:/# iwinfo wlan0 txpower 0 dBm ( 1 mW) 1 dBm ( 1 mW) 2 dBm ( 1 mW) 3 dBm ( 1 mW) 4 dBm ( 2 mW) 5 dBm ( 3 mW) 6 dBm ( 3 mW) 7 dBm ( 5 mW) 8 dBm ( 6 mW) 9 dBm ( 7 mW) 10 dBm ( 10 mW) 11 dBm ( 12 mW) 12 dBm ( 15 mW) 13 dBm ( 19 mW) 14 dBm ( 25 mW) 15 dBm ( 31 mW) 16 dBm ( 39 mW) 17 dBm ( 50 mW) 18 dBm ( 63 mW) 19 dBm ( 79 mW) * 20 dBm ( 100 mW) I have no idea why but there seems to be a bug in the code parsing the DFS regulations, limiting 2.4Ghz to lot lower values than allowed. Changing it to DFS-FCC works for using the applicaple output power but does not seem to be in compliance which German law. Do you have an idea where the problem could be? I'm happy to try out more builds and future versions. Also (kind of off-topic): Do you know why 5Ghz channels 36-48 are forced to be 17dBm only on the WNDR3800? I found two possible explanations: either
