Tape Measure Yagi-Uda antenna

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 Threw together a quick antenna from a cheap tape measure. The 3 elements rather conveniently already have measurements printed on them, you cut one at 41⅜, one at 35⅛ and two at 17¾. The two shorter pieces make up the driven element and should be spaced at ±1 inch adjusting for good SWR. The boom is made from ½ inch schedule 40 PVC, you'll need 2 feet cut down to 11 ¼ and 6⅞ fitted together with 2 cross Ts and a three-way T. 


Use hose clamps to hold the elements on the pvc and solder your coax to the 2 sides of the driven element. You will also need to solder a U shaped piece of wire to the driven element, about 6 inches long. 


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