Handheld Yagi UHF Antenna
Build a Handheld Yagi UHF antenna for your HT
This is one of the handheld yagis I use for working satellites (works well for terrestrial ops also) when mobile.
I made the elements from 1/8th stainless steel tig welding rods. These may be purchased at any welding supply outlet.
The elements can be fastened to the boom in a number of ways. One way is to drill a 1/8th hole through the boom and you will find there is enough resistance to keep the elements in place. I wanted to have the option of being able to disassemble the antenna for back packing. To accomplish this I took 1/4" bolts and drilled 1/8th holes through the center of the bolts. I then soldered the 1/8th inch stainless elements in place in the bolts. The boom is drilled & tapped on one side of the boom to match the thread on the bolts. the elements are put into place and hand tightened only. The boom also breaks in half for backpacking.
Before assembling the center of the boom, drill through the boom for the driven elements and insert 6x32 stainless screws from the inside. Use stainless washers and nuts on the outside to fasten the connectors in place that the braid and center conductor are attached to on the inside of the boom.
This small yagi has many other applications. Any problems with construction, you can send me a email for help.
I also can provide measurements.