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Re: Wet Trees?



Emily,

Yep!  Most likely.  Also, low angles shoot thru longer paths in the
atmosphere which if it has rained exhibits higher moisture content.

73's Ed
This get much worse above 10 GHz!

At 08:01 AM 1/27/2005 -0800, Emily Clarke wrote:
>In the past few months I've noticed that there are days when I just can't 
>work SO-50 below 12 degrees (normally getting down to 5 to 6 depending on 
>the azimuth.) The signal seems to fade in and out as the satellite moves in 
>azimuth, sometimes becoming stronger at a lower elevation.  It usually 
>seems to happen after there has been a rain.
>
>After testing power out/VSWR and passing the test, the next thing that came 
>to mind is that the wet trees, mostly thick pines and laurels which still 
>have their leaves, are attenuating the signal more than when they are 
>dry.  Does that seem possible?
>
>73,
>
>Emily
>
>
>
>---------------------------------
>W0EEC - CM87tm
>AMSAT Area Coordinator - San Francisco Bay Area
>http://www.projectoscar.net    http://www.PlanetEmily.com
>
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