[TowerTalk] 40m 4el KLM - replacing linear loading with coils

[David Gilbert]

The inductance of a linear loading wire goes up as the frequency 
increases.  It acts similarly to a transmission line.  You typically 
would like the inductance to go down (with increasing frequency), or 
worst case stay the same.

A coil's inductance doesn't significantly change with frequency, 
although of course it's reactance does.

73,
Dave   AB7E



On 4/28/2020 7:07 PM, john at kk9a.com wrote:
> Can you elaborate on this?
>
> John KK9A
>
> -----Original Message-----
> From: Richard (Rick) Karlquist [mailto:richard at karlquist.com]
> Sent: Tuesday, April 28, 2020 4:55 PM
> To: Mike & Becca Krzystyniak; john at kk9a.com; towertalk at contesting.com
> Subject: Re: [TowerTalk] 40m 4el KLM - replacing linear loading with coils
>
> <snip> Any linear loading scheme has
> the drawback that the effective loading inductance is directly
> proportional to frequency; exactly what you don't want.
>
> Rick N6RK
>