[TowerTalk] 40 meter vertical beam

[Richard (Rick) Karlquist]

On 3/8/2016 8:43 AM, Tom Osborne wrote:
>
> Does anyone know how to calculate the length of the reflector for this
> antenna??
>
> Thanks and 73
> Tom W7WHY

You calculate the free space length, just to use as a starting
point.  Then you build it and measure the frequency giving a
F/B of around 10 to 12 dB. Once you know how far off it
is from the frequency you want, you can scale it to the correct
value.

Rick N6RK