[TowerTalk] Help, Antenna modeling people.

[Jeff DePolo]

> So you did not use an insulator at the high voltage end of 
> the wire?  I
> never relied on rope being a good insulator. 

There does not exist a rope that remains a good insulator once it gets
wet...

In high-power broadcast, we regularly see burn-outs caused by weather-worn
fiberglass insulators that start to wick up water when it rains.  What used
to be mostly RF-transparent when dry becomes lossy when wet, with airborne
contaminants, rust/oxidation, and whatever else aggravating the condition
over time, ultimately leading to arc-over and/or mechanical failure.

				--- Jeff WN3A


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