Vertical Dipole VSWR Test
At beginning, the VSWR on 20M band was soaring high that totally unuseable, wherever I moved antenna around my working site was still keep the same. I was working on the top floor of my apartment which is 13 stories high. Then, I kept the feeding cable closed to the lower arm to see what will happen... To my surprised, the VSWR became better and it can be tuned between 1.3~1.5 but the trade-offs is sacrifice the band width.. There are no issues while working on other bands, I let the cable exists the antenna at 45 degrees just like most of hams do. Probably, it is a special case for my complex working environment.