From: "Richard Schütz" <r.schtz@t-online.de>
To: Daniel Halperin <dhalperi@cs.washington.edu>
Cc: linux-wireless@vger.kernel.org, wwguy <wey-yi.w.guy@intel.com>,
Stevie Trujillo <stevie.trujillo@gmail.com>
Subject: Re: Fwd: iwlagn: is tx_power_device_lmt a regulatory limit or a hardware limit?
Date: Fri, 10 Jun 2011 21:19:21 +0200 [thread overview]
Message-ID: <4DF26E39.80701@t-online.de> (raw)
In-Reply-To: <BANLkTimwn=sXSofPdQGg49Wsn6CxUbrOyw@mail.gmail.com>
Am 10.06.2011 20:42, schrieb Daniel Halperin:
> On Fri, Jun 10, 2011 at 11:24 AM, Richard Schütz<r.schtz@t-online.de> wrote:
>>
>> According to [1] there are no countries that forbid tx power values lower than 20dBm in the 2.4 GHz band. The lowest value for the 5 GHz band listed is 17 dBm. So why are the Intel cards limited to 15dBm then for both bands? This value absolutely makes no sense in my view.
>>
>> [1] http://git.kernel.org/?p=linux/kernel/git/linville/wireless-regdb.git;a=blob;f=db.txt;hb=HEAD
>>
>
> Are you forgetting to account for the 3 dBi--7 dBi antenna gain?
> Dan
We are talking about wireless devices that are primarily used in
portable computers. These do not have directional antennas usually. So
there should be almost no antenna gain in most cases.
--
Regards,
Richard Schütz
prev parent reply other threads:[~2011-06-10 19:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-25 16:13 iwlagn: is tx_power_device_lmt a regulatory limit or a hardware limit? Stevie Trujillo
2011-05-25 19:42 ` wwguy
2011-05-25 19:54 ` Stevie Trujillo
2011-05-26 2:28 ` wwguy
2011-05-26 6:22 ` Stevie Trujillo
2011-05-26 8:50 ` Richard Schütz
2011-05-26 14:11 ` wwguy
2011-06-10 16:31 ` Richard Schütz
2011-06-10 17:31 ` Guy, Wey-Yi
2011-06-10 18:24 ` Richard Schütz
[not found] ` <BANLkTimjLdr2Qb+yfUx84p4k2Oq8iumDhg@mail.gmail.com>
2011-06-10 18:42 ` Fwd: " Daniel Halperin
2011-06-10 19:19 ` Richard Schütz [this message]
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