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From: Johannes Berg <johannes@sipsolutions.net>
To: "Carlos Laué" <CarlosL@seznam.cz>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org
Subject: Re: wireless-regdb: Update regulatory rules for Czech Republic (CZ) on 5GHz
Date: Fri, 28 Nov 2008 00:19:07 +0100	[thread overview]
Message-ID: <1227827947.7559.38.camel@johannes.berg> (raw)
In-Reply-To: <610.1477-13200-1232669665-1227820994@seznam.cz> (sfid-20081128_001318_245944_E312D496)

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Hi,

> There seems to be outdated information in the regulatory database for
> CZ. According to the new regulatory laws, which can be found at
> http://www.ctu.cz/1/download/Opatreni obecne
> povahy/VO_R_12_08_2005_34.pdf (page 2) and
> http://www.ctu.cz/1/download/OOP/Rok_2007/VO_R_10_03_2007_4.pdf (page
> 3), for 5GHz the table should look like this:
> 
> 5150.000 - 5250.000 ; 40.000 ; NO-OUTDOOR ; N/A ; 23.00 (200.00 mW)
> 5250.000 - 5350.000 ; 40.000 ; NO-OUTDOOR,DFS ; N/A ; 23.00 (200.00 mW)
> 5470.000 - 5725.000 ; 40.000 ; DFS ; N/A ; 30.00 (1000.00 mW)
> 5725.000 - 5875.000 ; 40.000 ;  ; N/A ; 14.00(25.00 mW)

Care to send a patch? Download
http://git.kernel.org/?p=linux/kernel/git/linville/wireless-regdb.git;a=blob_plain;f=db.txt;hb=HEAD and edit as appropriate.

> if there are any difference between values in dBm and in mW, please
> consider the value in mW as the right value. 

As you can see in the rules for DE, you can give the values in mW too:

        (2400 - 2483.5 @ 40), (N/A, 100 mW)

I encourage you to add a comment, so that the CZ entry looks like this:

# Data from
# http://www.ctu.cz/1/download/Opatreni%20obecne%20povahy/VO_R_12_08_2005_34.pdf
# and http://www.ctu.cz/1/download/OOP/Rok_2007/VO_R_10_03_2007_4.pdf
country CZ:
	(2402 - 2482 @ 40), (N/A, 20)
...
	(5250 - 5350 @ 40), (N/A, 200 mW), NO-OUTDOOR, DFS
etc.

> * The values for 5250-5350MHz and 5470-5875MHz are valid only if the
> device is capable of automatic output power regulation (ie.iwconfig
> wlan0 power auto). If there isn't a way to assure this, then the
> maximum power output limit must be set to a value 3dB lower for ranges
> 5250-5350MHz (20dBm) and 5470-5875MHz.(27dBm).

Hmm. I don't think we have a way to capture this right now, should
probably use the lower values then.

johannes

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  reply	other threads:[~2008-11-27 23:19 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-27 21:23 wireless-regdb: Update regulatory rules for Czech Republic (CZ) on 5GHz Carlos Laué
2008-11-27 23:19 ` Johannes Berg [this message]
2008-11-27 23:20   ` Johannes Berg
2008-11-28  0:11   ` [PATCH] " Carlos Laué
2008-11-28  9:32     ` Johannes Berg
2008-11-28 15:37       ` Carlos Laué
2008-12-02  2:07         ` [PATCH v2] wireless-regdb: Update regulatory rules for Czech Republic (CZ) Carlos Laué
2008-11-28 17:16       ` Different TX power settings depending on actual regdomain and auto TX power settings Carlos Laué
     [not found] <15B47C78534E094AA9A41F58FB8D74F3D777A7B566@SC1EXMB-MBCL.global.atheros.com>
2009-01-02 12:08 ` wireless-regdb: Update regulatory rules for Czech Republic (CZ) on 5GHz Carlos Laué

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