Yagi Antenna Building Materials

The plans i am following use 1 8th inch stainless steel rods for the elements but it seems that stainless steel is one of the worse materials in terms of being a good conductor of radio waves to make an antenna out of.

Yagi antenna building materials. You can easily build your own yagi antenna to listen to meteors with the use of an rtl sdr dongle. And the physical design of yagis is a subject beyond my limitations. Typical construction materials used in a house can easily result in 10 15db or more of additional attenuation and that amount of loss is difficult to make up. This article shines little light on finding cheap aluminum or alternative methods of construction materials for yagi antennas.

Antennas can be made from many different materials. Metals such as copper aluminum tin and steel all will conduct electricity but when we are talking about radio frequency or rf currents and voltages we are talking about skin effect electricity. Remember that you should use metal of similar nature as dissimilar metals have a tendency to corrode or to have a non conductive properties. They are on same height.

Shop yagi antenna building parts and get free standard shipping on orders over 99 at dx engineering. Sad but true useable aluminum tubing in small quantities is expensive. I plan to use 6 elements for the 70 cm side and 4 elements for the 2m of the antenna. When building any antenna especially a yagi.

What we now see is the element plane. Strangely the antenna still works on 20m and 15m but the performance is off to say the least. Vk5dj s yagi calculator yagi design frequency 585 00 mhz wavelength 512 mm parasitic elements fastened to a non metallic or separated from boom folded dipole mounted same as directors and reflector director reflector diam 6 35 mm radiator diam 6 35 mm reflector 248 1 mm long at boom position 30 mm it 109 9 mm radiator single dipole 237 7 mm tip to tip spaced 102 mm from. Either over booms face in case of on on boom build with insulators or spacers or mountend through the boom.

The other problem is that when i feed power into the antenna the swr fluctuates and the amplifier protests. I made the decision to carry on building the new yagi. Just as a camera. The elements have been made from silicon bronze welding rod aluminum rod hobby tubing and solid ground wire with no change in performance.

Even a bad outside antenna may work better than a good indoor antenna. Such a yagi antenna however is also very easy to make with materials from the local hardware store. The design of a uda yagi antenna is characterized by three components. We could lay a piece of cardboard onto the elements.

On a common build yagi uda antenna all the parasitic elements are in line. It is also devoid of information on the physical design of yagis.