linux-kernel - Re: ath9k microwave anomaly

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Date:	Fri, 02 Jan 2009 22:48:29 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	linux-kernel@...r.kernel.org
Cc:	Steven Noonan <steven@...inklabs.net>,
	Dave Jones <davej@...hat.com>
Subject:  Re: ath9k microwave anomaly

Justin P. Mattock wrote:
> Steven Noonan wrote:
>> On Fri, Jan 2, 2009 at 7:31 PM, Justin P. Mattock
>> <justinmattock@...il.com> wrote:
>>  
>>> Dave Jones wrote:
>>>    
>>>> On Fri, Jan 02, 2009 at 06:47:32PM -0800, Justin P. Mattock wrote:
>>>>  > Now I'm not trying to be funny,
>>>>  > but I think I figured a problem
>>>>  > with running ath9k, and having the internet
>>>>  > timeout.(for me at least);
>>>>  > When streaming T.V.(cspan2), and
>>>>  > streaming music(somafm), at the same time,
>>>>  > then using the microwave, I'll experience a blackout
>>>>  > of internet(T.V. stops, then music stops streaming);
>>>>
>>>> not specific to ath9k.
>>>>
>>>> http://blogs.zdnet.com/Ou/?p=578 has some pretty graphics
>>>> to show just how much noise a microwave puts into the part
>>>> of the spectrum wifi uses.
>>>>
>>>>        Dave
>>>>
>>>>
>>>>       
>>> Damn that's allot,
>>> no wonder I was having these timeouts.
>>> i.g. system streams fine for 10 hours.
>>> then the next day a timeout after 2 hours due
>>> to microwave use.
>>> Thanks for pointing that blog out.
>>> that opened my eyes up to how powerful
>>> a microwave is. makes me wonder if that
>>> grade in the window actually does what is supposed to.
>>> (block gamma rays or whatever the dangerous wave is);
>>>
>>> regards;
>>>
>>> Justin P. Mattock
>>>
>>>     
>> Yeah, I think it was Luis Rodriguez (from Atheros) who told me that a
>> microwave was the best way to make a signal "wet poop" for
>> interference testing.
>>
>>   
> Well, this one here seems to be not
> that old, but it's enough to cause
> interference. Hopefully not too old
> to cause me to go sterile!!
> interesting thing is when
> the microwave is cold and then started
> I noticed more interference, as to when
> it's been running for a while.

I think the standards for microwaves allow a reasonable amount of 
microwave leakage - still way below the levels that can harm you, but 
compared to the power levels that a WiFi device puts out, it's pretty 
significant..

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