Topband: Voltage at top of vertical and scaling?

[Jeff Blaine]

Is this an intellectual exercise or Jim do you want to do something at 
the top of this vert - like hang a vac relay there to engage some 160m 
top hat cap loading wires?

73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com

On 4/16/19 6:52 PM, HP wrote:
> Just for grins - did a EZNEC free space - perfect ground - with 80 m vertical of #12 wire resonant at 3.55 mhz
> then put another #12 quarter wave resonant wire at right angles to the top thru 1 megohm -1500 watts in to the vert
> (says its 36.42 + j 0 at source ) says there is 3042 volts at angle -92.56 deg across the 1 meg resistor .
>
> If go to 10 megs it says 3051 at -93.6 deg and base goes to 36.23 +J 0.02
>
> at 10K its says 1245 v at -29.7 deg and base goes to 41.62 + J 8.2
>
> FWIW and grins --
>
> Hank K7HP
>
> ----- On Apr 16, 2019, at 6:38 AM, Jim Miller <jim at jtmiller.com> wrote:
>
> | Is there any data on what the voltage might be at the top of a full size
> | 80m vertical at 1500w input?
>
> | Is there some zener like ionization at the top that limits the voltage?
>
> | If so is there a way to estimate the voltage at lower points along the
> | vertical? I assume the scaling wouldn't be linear since starting at the
> | bottom on 36 ohms (sorta) and going to "infinity" at the top would preclude
> | that.
>
> | Thanks
>
> | jim ab3cv
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