[BC] Wave lengths

[Milton R. Holladay Jr.]

>
> The velocity factor differs due to the dielectric coefficient of the
> insulator. Think of it as the RF having to charge and discharge
capacitance
> (the distributed capacitance) of the line. The higher the capacitance
> (vacuum<air<foam<solid) the more 'work' the RF must do traveling the coax
> and it takes longer doing it. Think of running on the street vs. running
on
> the beach (as explained by another here recently). That is why an open
> 'ladder line' and an air dielectric coax have high velocity factors - less
> distributed capacitance and the RF can 'run' faster.
>
> Jeff.Johnson at goodnews.net
>
>
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