Do you have any special pliers for cable TV?
TV signal ambiguity is not necessarily the cause of joint, joint pay attention not to make the core wire and the outer metal braid braid and short circuit, and the plug of the outer contact is good, and then use the ordinary pliers to press ring pressed. Because this kind of pliers is specially used for compressing the hexagon F head, it is called F head press clamp or cable TV special line clamp.
This kind of line clamp specially used to make cable TV cable joints is available, but it is used by professionals, and it is not necessary to use one or two connectors as ordinary TV users.