I've never done this before so I merely ask advice.
Googling, I find that this seems to be the set of steps to install a combination TV WiFi (WISP) antenna pole (mast?) in the San Francisco bay area San Franciscian sediments (mostly chert) where it rarely freezes for more than a couple of hours but the wind can easily top 100 mph.
I'd like it to be removable (not sure why ... but it just seems like that's a better way to do it than installing it permanently).
Critique requested on the initial plan:
- Go to Home Depot and buy large thick steel pipe for the support, maybe two or three feet long (1.5" ID?); also buy a 15 or 20 foot long steel pipe (1" OD?) for the mast.
- Drill & tap a series of set-bolt holes in the top 6 inches of the large pipe
- Dig a two-foot deep hole in the soil, about a foot in diameter.
- Fill the bottom of the hole to the 18 inch deep mark with gravel.
- Mix concrete and pour the concrete around the large pipe to ground level with the large pipe sticking up at least six or so inches
- When set, lower a 15 or 20 foot one-inch OD steel pipe into the larger pipe, and tighten the set bolts.
Anyone have experience in this type of endeavor that I may learn from before I do this job?