hello! experience with 802.11x and extreme humidity?

[Martin Pot]

Hi Armin.

I've got a 10km 802.11b link thru some trees, and am monitoring the SNR, 
signal, noise, etc with rrdtool (at 5 minute intervals).

Wet weather tends to drop my SNR by about 2dB, which isn't suprising, 
because the wet trees would be absorbing some of my signal.

To see just how the weather affects my signal, I'm now also monitoring the 
temperature, wind speed, wind direction, rainfall, relative humidity, and 
barometric pressure with rrdtool (at 10 minute intervals, using 
www.bom.gov.au data).
I'm doing this so I can easily compare my signal rrd graphs with the 
weather rrd graphs, to see what impact the weather is having on my link.

I've only been monitoring the weather for a couple of days, so I don't 
have enough data yet, but should definitely be able to provide more info 
in a few weeks or so.

Cheers,
Martin.

> Hello all,
> 
> 	I subscribed to this Australian list hoping that 
> s.b. here has experience how 802.11x performs
> under extreme humidity (fog, rain).
> 
> 2.4 GHz is a resonance frequency of water -- so
> I assume the receiving quality to go down with
> humidity.
> 
> What about 5.6GHz?
> 
> Does anybody have concrete numbers to share?
> 
> I think the potential temperatures would be between 
> 18C to 35C and I expect up to 80% humidity.
> 
> Thx & thank you very much for any experience you can share.
> -A.
> 
> -----------------------------------------------
> Armin Roehrl, http://www.approximity.com
> Training, Development and Mentoring
> OOP, XP, Java, Ruby, Smalltalk, .Net, Datamining, Parallel computing, 
> Webservices
> 
> I can't understand why people are frightened of new ideas.
> I'm frightened of the old ones.
> -- John Cage
> 
> 
>