You cannot calculate "loss resistance" using only
a Smith chart, and the dB/ft loss specs. Instead
of just dB/ft, you need to know conductor resistance
per foot and dielectric conductance per foot.
Rick N6RK
> John Kaufmann said:
>
based on its length
> and its loss
> > specs (dB/ft or dB/m). Then you can determine whether or not you will
>
> Rick Karlquist said:
>
> > You also need to know how much of the loss is due to dielectric loss
> > tangent vs conductor resistance. For a matched 50 ohm line at 1.8 MHz,
> > the dielectric loss is negligible. However, it may be significant in a
> > capacitor made out of coax.
>
>
>
> When I refer to "loss resistance" in my earlier post, I am really
> You can use a Smith Chart to calculate it based on
> transmission line behavior of the line as my earlier post also indicates.
>
> 73, John W1FV
>
>
_______________________________________________
Topband mailing list
Topband@contesting.com
http://lists.contesting.com/mailman/listinfo/topband
|