[Madwifi-users] Re: Re: Monitoring noise (IVAN KORSHUN) - previous day's Message 4

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	Very interesting; I find levels on different channels from -86 to
-104 dBm;  Also on any given channel the noise can vary +/- 7 dBm within
just a few seconds (assuming this is accurate).
	Is there some way similar code could make its way into the HAL
itself (please)?

	Paul Shupak
	wr...@pl...

P.S. Some of the code and copyright look strangely familiar :)

>Message: 4
>From: IVAN KORSHUN <200...@ma...>
>To: mad...@li...
>Date: Thu, 29 Jul 2004 16:08:27 +0400
>Reply-To: IVAN KORSHUN <200...@ma...>
>Subject: [Madwifi-users] Re:  Monitoring noise
>
>
>------KjXCBy3u-boPgkq3JpGR2GqPm:1091102907
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>Charlie,
>
>lspci -v
>...
>Memory at XXXXXXXX
>...
>And then :
>./noiseok XXXXXXXX
>
>...
>Real noise: -XX dBm
>...
>
>-Ivan
>
>
>> Hi--
>>    I'm interested in being able to record noise levels from my Atheros 
>> card, if possible.  I've been recording the Prism Monitoring Header 
>> using tcpdump while the card is in monitor mode, and I can get values 
>> for signal but the noise is always 0.  (I can do the same thing for a 
>> Prism 2.5 card and I get values for noise.)
>> 
>>    I've found some discussion related to this in posts to this mailing 
>> list, which seem to indicate the madwifi driver just uses a fixed value 
>> of -95 dBm for the noise.  Is there any way (requiring driver 
>> modifications or not) to get measured noise levels from the card, or is 
>> this information not reported at all by the card?
>> 
>> Thanks for your help,
>> Charlie
>
>
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