[MLB-WIRELESS] Fog effects wireless links? - Urban Myth

[Drew]

from the telex faq @ 
http://www.telex.com/Wireless/faq.nsf/C!OpenView&RestrictToCategory=Radio%20Propagation

What effect does rain or fog have on performance?

    2.4 GHz signals may be attenuated by up to 0.05 dB/km (0.08 dB/mile)
    by torrential rain (4 inches/hr). Thick fog produces up to 0.02
    dB/km (0.03 dB/mile) attenuation. At 5.8 GHz, torrential rain may
    produce up to 0.5 dB/km (0.8 dB/mile) attenuation, and thick fog up
    to 0.07 dB/km (0.11 dB/mile). Even though rain itself does not cause
    major propagation problems, rain will collect on the leaves of trees
    and will produce attenuation until it evaporates.



Craig Mead wrote:

>G'day all,
>
>Been a bit of discussion lately on a few of the lists about if fog/rain will
>effect a 2.4GHz link.
>  
>



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