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

https://www.mediafire.com/file/3ur3bk8n5tlkrzw/pdf-65567-5222.pdf/file

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.