17 Reasons Why You Should Ignore IG 演算法
https://cesariuho.bloggersdelight.dk/2024/05/06/20-resources-thatll-make-you-better-at-ig-tui-guang/
Even cables with designed-in repeaters usually make it possible for for an external electrical power source being attached. This is often just a little excess protection for your signal and should be a good suggestion