Determine the lightest pipe section and smallest diameter bolts to design an

antenna mounting system located in Hawaii in a wind zone producing an ultimate

wind pressure of $32psf.$ The antenna will be attached at an elevation of ${100}^{\text{'}}$AGL,

which is four feet above the top support and has a size of $84"$ tall x $12"$ wide $x4"$

deep $x60lbs.$ The remote radio unit $($ RRU $)$ will be attached in the center of the

supports and has a size of $18"$ tall ${12}^{\text{'}\text{'}}$ wide $5"$ deep $50$ lbs$.$ A diplexer will be

attached one foot below the bottom support and has a size of $6"$ tall $x12"$ wide $x$

$3"$ deep x $10lbs.$ The supports are spaced two feet apart consisting of angle

brackets with two bolts each to the existing framing and one u$-$bolt to the pipe. The

pipe and bolts shall be ASTM A$53$ and ASTM A$36$ steel, respectively. Consider

the supporting framing and brackets to have adequate capacity.