The assembly is now complete, and there are both aspects that pleased me and areas that need improvement. What pleased me was that, despite the significant drop in performance, the SWR (Standing Wave Ratio) remained relatively good, and the impedance was around 40 ohms. I tested it with FT8 at 5 watts, and received a signal report of -3 dB from Japan, while I transmitted a -1 dB signal to them. This is already quite good for two eight-element Yagi antennas.
Of course, I also found areas that need improvement. My original plan was to use the "封神" (Feng Shen) product to reduce the sagging of the frame, but during actual operation, it not only didn't reduce the sagging, but actually made it worse... Now I want to add another short aluminum pipe on top to prevent further sagging. I will also install the "也嫁了" (Ya Jia Le) later. I will post the official video and pictures, and I will test it on my rooftop...
I hope someone can offer some advice on how to reduce his fall.
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