[MLB-WIRELESS] IEEE Victorian TALK: Gigabit Wireless Systems

[Ratbaggy]

Both Oxygen and Water cause different amounts of absorption depending on 
frequency, altitude etc.

http://brucegary.net/MTP_tutorial/MTP_ch5.html


----- Original Message ----- 
From: "Tony Langdon, VK3JED" <vk3jed at optushome.com.au>
To: "David Smith" <david at smithfamily.net.au>; <melbwireless at wireless.org.au>
Sent: Saturday, May 19, 2007 5:05 PM
Subject: Re: [MLB-WIRELESS] IEEE Victorian TALK: Gigabit Wireless Systems


> At 04:47 PM 5/19/2007, David Smith wrote:
>
>>Tony Langdon, VK3JED wrote:
>> > At 11:20 AM 5/19/2007, Bill Farrow - Mailing Lists wrote:
>> > A word of warning, the maximum practical range on 60 GHz is a little
>> > over 1km, no matter the antenna configuration.  This is due to the
>> > fact that this band is strongly absorbed by atmospheric oxygen.
>>
>>Hate to be a smart*, but I think you'll find there are 2 hydrogen atoms
>>attached to the oxygen atoms in the molecules that cause the attenuation
>
> OK, wrong molecule... :)  Been a while since I read up on those 
> frequencies. :)
>
> 73 de VK3JED
> http://vkradio.com
>
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