[time-nuts] Rain, Water, etc

Didier Juges didier at cox.net
Mon Mar 6 22:10:52 EST 2006


I think the problem with rain is not the effect on the direct signal, 
which is negligible as your calculation showed, but the effect of 
multipath.

Is a rain cloud is nearby, it could reflect signals with significant 
strength, causing multiple receptions at your location, with signals 
that may have traveled many more miles than the main signal.

Didier KO4BB

Tom Clark, K3IO (ex W3IWI) wrote:

>   [1]time-nuts-request at febo.com wrote:
>
>     David and Tom opined:
>
>Rain should have an effect on the timing of the signal, since the
>propagation speed of radio waves through water is different from that
>through air. It will also attenuate the signal, causing worse S/N
>ratio which would cause the lower-elevation satellites to not be seen.
>
>  
>





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