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Date: Wed, 16 May 2012 08:08:00 +0200
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Subject: Re: AR9280 reported signal strengths are flat (comparison with
 bcm4322 included)
From: Holger Schurig <holgerschurig@googlemail.com>
To: George Nychis <gnychis@gmail.com>
Cc: linux-wireless@vger.kernel.org
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This is probably due to ANI (adapative noise immunity). I think ath9k
does too much here, in other words: it doesn't just kick in if there
are too strong signals there. Instead it seems to always adjust the
input attenuator, needed or not.