This is an easy antenna to build and find the parts for. If you follow these instructions and have it come out looking like these pictures, it should have a very low SWR and appreciable gain.

You can use any number of pieces of aluminum pipe so long as they are ridged and fairly thick-walled so as not to become bent and broken in a strong wind. The pieces should be gradually smaller, one being able to fit inside the next. Cut two 2′ grooves with a hacksaw down the outer pieces of aluminum and put a hose clamp around them. Now adjust the antenna to 22 ½ feet (6.85 meters) and tighten the hose clamps down to hold it all together. This 22 ½-foot vertical element can now be mounted with two U-bolts on to the 2″ x 6′ board. This board should be treated or painted to protect it from the weather.

Put a bolt through the piece of wood a few inches below the vertical element. Here you should fasten one end of the 6 foot (183 centimeters) piece of copper wire or tubing, the outside braid of the coax and each of the 104″ (264 cm)[102" (259 cm)] long, stranded wires. These are called the ground radials and should be tied off with string (not wire) at a 45 degree angle away from the bolt. The ground radials and the braid from the coax can be soldered together or can be crimped together with a crimp connector that fits the bolt. The other end of the 6′ copper wire is bent and fastened to the vertical element. The end of the center wire of the coax is then twisted onto this in such a way that it ca be slid up or down along the copper wire and soldered after adjustment.