[TowerTalk] Loading Coils

[Jim Brown]

On 8/1/2025 10:06 AM, David Needham wrote:
> If any of y'all are in need of any inductors (or loading coils) for your 80
> or 160m verticals, my good friend Gaylord Gasque, N6SF, has started
> manufacturing several models.

This is, indeed, great news. But in applying them, remember that loading 
inductance at the feedpoint results in the worst performance compared to 
loading closer to the far end of the antenna, because it's a current 
maxima. An excellent study with carefully measured field strength 
measurements published in QEX (in 2012, I think) clearly showed this.

If inductance must be used at the feedpoint, an autotransformer might be 
a better way to it.

73, Jim K9YC