Interesting results. I wondered how that works if only one pair of sticks is connected, but the principle how a Yagi works is quite ingenious (after googling it of course).
I saw people make such antenas for SOTA activities and portable use out from piano or guitar strings. I also saw a portable Yagi on WIMO.com for SOTA but its over 100€. I got a fiberglas heavy duty pole with 6m height, such a yagi would come in handy to pickup distant stations on simplex.
I may research a bit on how to use guitar wires for that as I am a guitar player and those wires are really form stable.
Thanks for sharing this diy project
Hello Gil,
I want to build a 3 element tape mesure antenna
for 146.700MHz. Are the following
calculation correct ?
λ = c/f
λ = 300/146.7
λ = 2.044989775051125 meters
Reflector lenght .................. = 0.495 * λ
= 0.495 * 2.044989775051125
= 1.012269938650307 meters
Driven elements .................. = 0.473 * λ
= 0.473 * 2.044989775051125
= 0.967280163599182 meters
Director lenght .................. = 0.440 * λ
= 0.440 * 2.044989775051125
= 0.899795501022495 meters
Reflector to driven element spacing = 0.125 * λ
= 0.125 * 2.044989775051125
= 0.255623721881390 meters
Driven element to director spacing = 0.125 * λ
= 0.125 * 2.044989775051125
= 0.255623721881390 meters
Does this make sense
Merci
Quote from: Marcel on November 03, 2019, 10:18:36 PMAre the following
calculation correct ?
Hi, I don't know. I use an online Yagi calculator like this one: https://www.changpuak.ch/electronics/yagi_uda_antenna_DL6WU.php (https://www.changpuak.ch/electronics/yagi_uda_antenna_DL6WU.php)