Just wondering.....there is a product called Rain-X that causes water to
bead up and roll off when applied to such as car windshields. Wonder how
that would work on any of the balanced line materials.
73
Bob, K4TAX
> Ok, let me try the simple Executive summary:
>
> Taking a length of window-line fresh off the drum, and dowsing it with
> UK (midlands) rain water I see an small increase in attenuation at the
> top of the HF band that would not be discernible unless you had a 250ft
> run or longer. At the same time there is a shift in Velocity Factor that
> *would* be noticeable in a doublet/window-line application because of
> the impedance transformation it introduces. Those results seem to be
> entirely consistent with the ARRL results.
>
> If I introduce a wetting agent like Wes Stewart did, I see a large
> increase in loss which is of the same order as he observed. It's unclear
> to me whether that's because it produces much more complete "wetting",
> or whether it's due to something in the agent itself. If the latter,
> it's obviously a very artificial condition.
>
> Interestingly the ARRL experiment also included window-line that had
> been outside for some time; it performed about the same as the new stuff!
>
> Like most experiments you can always find more to do: what about waxing
> the line; what's the effect of snow & ice as opposed to rain; etc etc.
> For now, I'm content that the discrepancy between Stewart's results and
> the ARRL results can be explained .... at least to my satisfaction :)
>
> I may well leave the experimental line in place and try it again if we
> get some more sever whether conditions in the winter.
>
> Steve G3TXQ
>
>
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Disclosure:
I am a Tentec Ambassador and compensated according to the Tentec
Ambassador plan. I serve as a volunteer beta test person for the Omni
VII, Eagle and Argonaut VI products. Otherwise, I hold no business or
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