3M DYNATEL 573A EARTH RETURN FAULT PIPE & CABLE LOCATOR. AUDIO MODE

This film demonstrates how the audio function works. The audio is great if there is a return path for the audio. The far end of the cable leads needs to complete a circuit. Typically a earth return. If there is an earth fault in the cable it should be easy to find where the fault is because the audio signal will end there.

[@ruslanstolyarov2708]

what is rf ?

[@ramonsanchez-rh5ue]

I don't get it