An Introduction to Youtube買訂閱
http://shanedhqg843.cavandoragh.org/what-i-wish-i-knew-a-year-ago-about-youtube-mai-guan-kan-ci-shu
It is because the cables are produced using twisted copper pairs of really tiny-gauge wire. As opposed to normal coaxial cable, this tends to make interference and degradation a reality When working with lengths