A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire

https://shaneweca624.theglensecret.com/electroculture-antenna-placement-mapping-your-garden-for-maximum-effect

A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire, positioned near crops to capture atmospheric ions and gently influence local electrostatic conditions.