ダイポールのインピーダンスがわかれば、調整は簡単、ＳＷＲが下がります。インピーダンスが変化する様子を可視化　やっぱりアンテナの理屈は正しかった！！基本に忠実に作業することが重要です。

Classic dipole antenna
A simple experiment at 28MHz & 50MHz on how the impedance changes depending on the height and the angle of the element.
It is quite important because the source of SWR change is impedance.
It may be difficult to find a way to lower the SWR just by looking at the SWR.

I also recorded how the length of the coaxial cable was adjusted so that the impedance could be measured as accurately as possible.

#Amateur radio #Antenna #Adjustment