am in the process of testing USB cables using my multimeters continuity check function. The meter is an old Fluke 111.
The way it normally works is that a low resistance will cause the meter to emit a clear tone and the resistance is displayed on the screen. For a conductor the resistance is generally 0.
On USB cables I know to be bad I’m getting a tone and 1 ohm resistance. The odd thing is that the tone sounds distorted, kinda buzzy.
I’ve tried searching for an answer online. Has anyone encountered this before? Does this mean there is excessive C or L in the cable?