* Maximum Transmit Power for channel 36 ,40,44 and 48 @ 2017-03-20 8:25 KAVITA MATHUR 2017-03-20 10:45 ` Sebastian Gottschall 0 siblings, 1 reply; 4+ messages in thread From: KAVITA MATHUR @ 2017-03-20 8:25 UTC (permalink / raw) To: ath10k, ath9k-devel Hi, Chipset : AR9220 RF module : WLM200NX and WLM200N5 Linux Kernel : 3.12 ath9k driver : backport4.4.2-1 With above combination , I have measured maximum transmit power 13 dBm for channel 36,40,44 and 48. While it is 20 dBm for channel 149 and other 5GHz band channels as well as for 2.4 GHz channels. If I try to set txpower using iwconfig wlan0 txpower 20 , it gives no error.but it shows only 13dBM. How I can change the txpower for channel 36,40,44 and 48? Please help me on this. Thanks & Regards, कविता माथुर Kavita Mathur वरिष्ठ अनुसंधान अभियंता Senior Research Engineer सी-डॉट C-DOT इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 फोन Ph 080-28529896 Disclaimer: ---------- This email and any files transmitted with it _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Maximum Transmit Power for channel 36 ,40,44 and 48 2017-03-20 8:25 Maximum Transmit Power for channel 36 ,40,44 and 48 KAVITA MATHUR @ 2017-03-20 10:45 ` Sebastian Gottschall 2017-03-21 3:59 ` KAVITA MATHUR 0 siblings, 1 reply; 4+ messages in thread From: Sebastian Gottschall @ 2017-03-20 10:45 UTC (permalink / raw) To: KAVITA MATHUR, ath10k, ath9k-devel Am 20.03.2017 um 09:25 schrieb KAVITA MATHUR: > Hi, > > Chipset : AR9220 > RF module : WLM200NX and WLM200N5 > Linux Kernel : 3.12 > ath9k driver : backport4.4.2-1 > > With above combination , I have measured maximum transmit power 13 dBm for channel > 36,40,44 and 48. While it is 20 dBm for channel 149 and other 5GHz band channels > as well as for 2.4 GHz channels. > > If I try to set txpower using iwconfig wlan0 txpower 20 , it gives no error.but it shows > only 13dBM. > > How I can change the txpower for channel 36,40,44 and 48? the maximum availale txpower depends on the calibration data which is stored within the cards owm eeprom and is also related to the current used mcs set / wireless rate. as higher the rate is as lower the transmission power will be according to the datasheet the rate for ht40 5 ghz for this card is 14 dbm at MCS 7 / 15 with a tollerance of +- 2 dbm https://www.pcengines.ch/pdf/wlm200n5-23.pdf Sebastian > Please help me on this. > > Thanks & Regards, > कविता माथुर Kavita Mathur > वरिष्ठ अनुसंधान अभियंता Senior Research Engineer > सी-डॉट C-DOT > इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I > होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 > फोन Ph 080-28529896 > Disclaimer: > ---------- > This email and any files transmitted with it > > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k -- Mit freundlichen Grüssen / Regards Sebastian Gottschall / CTO NewMedia-NET GmbH - DD-WRT Firmensitz: Berliner Ring 101, 64625 Bensheim Registergericht: Amtsgericht Darmstadt, HRB 25473 Geschäftsführer: Peter Steinhäuser, Christian Scheele http://www.dd-wrt.com email: s.gottschall@dd-wrt.com Tel.: +496251-582650 / Fax: +496251-5826565 _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Maximum Transmit Power for channel 36 ,40,44 and 48 2017-03-20 10:45 ` Sebastian Gottschall @ 2017-03-21 3:59 ` KAVITA MATHUR 2017-03-21 4:12 ` Adrian Chadd 0 siblings, 1 reply; 4+ messages in thread From: KAVITA MATHUR @ 2017-03-21 3:59 UTC (permalink / raw) To: Sebastian Gottschall, ath10k, ath9k-devel Hi, But I got 13 dBm for 20 MHz channel(HT20), mcs 7. And I got 18dBm for 40 MHz channel(HT40), mcs 15. In both cases, I have set channel 36. If I change channel 36 to 149, I always get 20dBm for all the modes(legacy,HT-20 and HT-40). I am using country IN in my hostapd configuration file, which gives following limitation: country IN: DFS-JP (2402 - 2482 @ 40), (20) (5170 - 5250 @ 80), (20), AUTO-BW (5250 - 5330 @ 80), (20), DFS, AUTO-BW (5735 - 5835 @ 80), (20) Can I change the calibration data? How can it be done? Thanks & Regards, KAvita On Mon, 20 Mar 2017 11:45:16 +0100, Sebastian Gottschall wrote > Am 20.03.2017 um 09:25 schrieb KAVITA MATHUR: > > Hi, > > > > Chipset : AR9220 > > RF module : WLM200NX and WLM200N5 > > Linux Kernel : 3.12 > > ath9k driver : backport4.4.2-1 > > > > With above combination , I have measured maximum transmit power 13 dBm for channel > > 36,40,44 and 48. While it is 20 dBm for channel 149 and other 5GHz band channels > > as well as for 2.4 GHz channels. > > > > If I try to set txpower using iwconfig wlan0 txpower 20 , it gives no error.but it shows > > only 13dBM. > > > > How I can change the txpower for channel 36,40,44 and 48? > the maximum availale txpower depends on the calibration data which is > stored within the cards owm eeprom and is also related to the current > used mcs set / wireless rate. > as higher the rate is as lower the transmission power will be > according to the datasheet the rate for ht40 5 ghz for this card is 14 > dbm at MCS 7 / 15 with a tollerance of +- 2 dbm > > https://www.pcengines.ch/pdf/wlm200n5-23.pdf > > Sebastian > > > Please help me on this. > > > > Thanks & Regards, > > कविता माथुर Kavita Mathur > > वरिष्ठ अनुसंधान अभियंता Senior Research Engineer > > सी-डॉट C-DOT > > इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I > > होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 > > फोन Ph 080-28529896 > > Disclaimer: > > ---------- > > This email and any files transmitted with it > > > > > > _______________________________________________ > > ath10k mailing list > > ath10k@lists.infradead.org > > http://lists.infradead.org/mailman/listinfo/ath10k > > -- > Mit freundlichen Grüssen / Regards > > Sebastian Gottschall / CTO > > NewMedia-NET GmbH - DD-WRT > Firmensitz: Berliner Ring 101, 64625 Bensheim > Registergericht: Amtsgericht Darmstadt, HRB 25473 > Geschäftsführer: Peter Steinhäuser, Christian Scheele > http://www.dd-wrt.com > email: s.gottschall@dd-wrt.com > Tel.: +496251-582650 / Fax: +496251-5826565 Thanks & Regards, कविता माथुर Kavita Mathur वरिष्ठ अनुसंधान अभियंता Senior Research Engineer सी-डॉट C-DOT इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 फोन Ph 080-28529896 Disclaimer: ---------- This email and any files transmitted with it _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Maximum Transmit Power for channel 36 ,40,44 and 48 2017-03-21 3:59 ` KAVITA MATHUR @ 2017-03-21 4:12 ` Adrian Chadd 0 siblings, 0 replies; 4+ messages in thread From: Adrian Chadd @ 2017-03-21 4:12 UTC (permalink / raw) To: KAVITA MATHUR Cc: ath10k@lists.infradead.org, Sebastian Gottschall, ath9k-devel hiya, sure, but the NIC also has calibration tables for the maximum power it's been calibrated at for each channel. This includes per-channel targets and band-edge targets. Unfortunately :( ath10k doesn't easily expose the NIC regulatory / CTL entries in a useful fashion. That would sure be nice. -adrian On 20 March 2017 at 20:59, KAVITA MATHUR <kavitam@cdot.in> wrote: > > Hi, > > But I got 13 dBm for 20 MHz channel(HT20), mcs 7. And I got 18dBm for 40 MHz > channel(HT40), mcs 15. In both cases, I have set channel 36. > > If I change channel 36 to 149, I always get 20dBm for all the modes(legacy,HT-20 and HT-40). > > I am using country IN in my hostapd configuration file, which gives following limitation: > > country IN: DFS-JP > (2402 - 2482 @ 40), (20) > (5170 - 5250 @ 80), (20), AUTO-BW > (5250 - 5330 @ 80), (20), DFS, AUTO-BW > (5735 - 5835 @ 80), (20) > Can I change the calibration data? How can it be done? > > Thanks & Regards, > KAvita > > On Mon, 20 Mar 2017 11:45:16 +0100, Sebastian Gottschall wrote >> Am 20.03.2017 um 09:25 schrieb KAVITA MATHUR: >> > Hi, >> > >> > Chipset : AR9220 >> > RF module : WLM200NX and WLM200N5 >> > Linux Kernel : 3.12 >> > ath9k driver : backport4.4.2-1 >> > >> > With above combination , I have measured maximum transmit power 13 dBm for channel >> > 36,40,44 and 48. While it is 20 dBm for channel 149 and other 5GHz band channels >> > as well as for 2.4 GHz channels. >> > >> > If I try to set txpower using iwconfig wlan0 txpower 20 , it gives no error.but it shows >> > only 13dBM. >> > >> > How I can change the txpower for channel 36,40,44 and 48? >> the maximum availale txpower depends on the calibration data which is >> stored within the cards owm eeprom and is also related to the current >> used mcs set / wireless rate. >> as higher the rate is as lower the transmission power will be >> according to the datasheet the rate for ht40 5 ghz for this card is 14 >> dbm at MCS 7 / 15 with a tollerance of +- 2 dbm >> >> https://www.pcengines.ch/pdf/wlm200n5-23.pdf >> >> Sebastian >> >> > Please help me on this. >> > >> > Thanks & Regards, >> > कविता माथुर Kavita Mathur >> > वरिष्ठ अनुसंधान अभियंता Senior Research Engineer >> > सी-डॉट C-DOT >> > इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I >> > होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 >> > फोन Ph 080-28529896 >> > Disclaimer: >> > ---------- >> > This email and any files transmitted with it >> > >> > >> > _______________________________________________ >> > ath10k mailing list >> > ath10k@lists.infradead.org >> > http://lists.infradead.org/mailman/listinfo/ath10k >> >> -- >> Mit freundlichen Grüssen / Regards >> >> Sebastian Gottschall / CTO >> >> NewMedia-NET GmbH - DD-WRT >> Firmensitz: Berliner Ring 101, 64625 Bensheim >> Registergericht: Amtsgericht Darmstadt, HRB 25473 >> Geschäftsführer: Peter Steinhäuser, Christian Scheele >> http://www.dd-wrt.com >> email: s.gottschall@dd-wrt.com >> Tel.: +496251-582650 / Fax: +496251-5826565 > > > Thanks & Regards, > कविता माथुर Kavita Mathur > वरिष्ठ अनुसंधान अभियंता Senior Research Engineer > सी-डॉट C-DOT > इलैक्ट्रॉनिक्स सिटी फेज़ I Electronics City Phase I > होसूर रोड, बेंगलूरु Hosur Road, Bengaluru – 560100 > फोन Ph 080-28529896 > Disclaimer: > ---------- > This email and any files transmitted with it > > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-03-21 4:13 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2017-03-20 8:25 Maximum Transmit Power for channel 36 ,40,44 and 48 KAVITA MATHUR 2017-03-20 10:45 ` Sebastian Gottschall 2017-03-21 3:59 ` KAVITA MATHUR 2017-03-21 4:12 ` Adrian Chadd
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