In winter in MA (wind chill -30 last night), my screw anchors will hold any
tower up till the steel fails. When the ground thaws in the spring it becomes
much less secure. The screw anchor failure I read about happened when heavy
rain turned the poor ham's soil to soup. I imagine that professional
installation of screw anchors involves testing the soil.
By spring I hope to have a real tower up.
--Walter K1CMF
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