[TowerTalk] Capacitor Value for a 160m T antenna

[Guy Olinger]

I use a neat little program called HamIC, which has a stack of little
calculators, including an L network calculator.

See http://www.sweetscape.com/hamic/

Having an inductive reactance below 50 ohms is helpful. Lends itself to
solution with capacitive voltage divider.

At 1.83 MHz

Series cap of (x=-152) 572 pF. Use anything 500-600 pF TX doorknob.

Cap to ground on antenna side of (x=-1500) 58 pF. Use anything around 60
pF, TX doorknob.

This will get you mostly there.

73, Guy K2AV.

On Mon, Nov 7, 2016 at 12:48 PM, Richard Thorne <rthorne at rthorne.net> wrote:

> I'm going to build a T antenna for 160 in a few weeks.
>
> I need a capacitor to tune out z = 41.2 + j139.
>
> For the educational experience, how do I calculate a cap for the above
> equation?  I'm going to try and track down a variable cap for the above so
> I can build the antenna over the Thanksgiving holiday.
>
> Thanks
>
> Rich - N5ZC
>
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