From: Sebastian Gottschall <s.gottschall@dd-wrt.com>
To: KAVITA MATHUR <kavitam@cdot.in>,
ath10k@lists.infradead.org, ath9k-devel@qca.qualcomm.com
Subject: Re: Maximum Transmit Power for channel 36 ,40,44 and 48
Date: Mon, 20 Mar 2017 11:45:16 +0100 [thread overview]
Message-ID: <0f6c7cd6-5925-61ea-2b65-98023aba4f57@dd-wrt.com> (raw)
In-Reply-To: <20170320081343.M37344@cdot.in>
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
next prev parent reply other threads:[~2017-03-20 10:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-20 8:25 Maximum Transmit Power for channel 36 ,40,44 and 48 KAVITA MATHUR
2017-03-20 10:45 ` Sebastian Gottschall [this message]
2017-03-21 3:59 ` KAVITA MATHUR
2017-03-21 4:12 ` Adrian Chadd
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0f6c7cd6-5925-61ea-2b65-98023aba4f57@dd-wrt.com \
--to=s.gottschall@dd-wrt.com \
--cc=ath10k@lists.infradead.org \
--cc=ath9k-devel@qca.qualcomm.com \
--cc=kavitam@cdot.in \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox