Hy I bought a cheap Yagi wifi antenna need some help cause the previous owner broke it and tried to fix it red neck style… It didn’t work … I hope I would be able to add a picture here is a breaf description anyway it’s the cheapest brand you can find online the main element is formed into an oval shaped metal ring and here comes my question where should I solder the middle wire ? On one end ? On the other ? Should I pass it throu the (hollow) metal ring and weld it back to himself ? I have seen people build Yagies with similar ovaly shaped rings and they made the cable pass through half the ring and weld it there the problem is that my ring is shaped exactly like a C it doesn’t have a second gap in the middle of the left part … (Here=>C) English is not my first language hope it’s good enough to be understood ask if not 👍🏻
Look up Andrew McNeil on YouTube if you can. He has lots of content and examples. https://www.youtube.com/channel/UCHqwzhcFOsoFFh33Uy8rAgQ
Without a vector network analyzer with the bandwidth for 2.4/5.8 GHz to tune the signal frequency well, you are poking around in the dark when it comes to real performance.
I’ve built some antennas including a one for WiFi. It made a small difference for awhile, but it turned out there is an error of some kind in the OpenWRT kernel or in the hardware design of the device. It took me a long time to isolate the problem. The router was unable to transition between the 2.4 and 5.8 bands smoothly and was causing problems. I actually get better range and performance by disabling the 2.4 GHz radio entirely. My issue of the bad 2.4 radio is probably unrelated to whatever you’re dealing with, but it is something to think about and maybe test out if you’re trying to improve router performance.
If you have access, https://catbox.moe is a image hosting server an individual runs with no nonsense. The embedding syntax for Lemmy is 
I’m considering this possibility as one of the most likely now… I have an Alfa wifi adapter and I have already tried 5or 6 antennas and I never seen a performance boost … no matter how big the antenna I connect… Yeah some of them were hand made but I made sure to be precise… Here’s the link … It’s not my antenna it’s an identical one taken from the internet (the Alfa adapter is not the one I have … Mine is 2.4/5.8 and that’s exactly why you had problems I guess … )
Lemmy is 
😂😂😅 Apparently I’m not even able to load an image 😂
Btw I knew Andrews channel there’s where I got the idea fo soldering it half way through the C he does that in the video 900mhz Yagi changing the coax…