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In situations where it is difficult to identify the
target wire, because of crosstalk from other
wires, the target wire can be identified by short-
ing the TONE to ground (if the LINE/GROUND
connection is being used) or shorting out the
wire pair with the TONE on it (if the LINE/LINE
connection is being used). (See Figure 3) If you
have found the correct wire(s), the TONE will
be completely killed. If the TONE is still heard,
but reduced somewhat in level, you have not
found the target wire(s). This method is not fool-
proof, and experimentation, common sense, and
experience must be used to apply it properly.
However, in many instances, it will provide trace
verification. A caution . . . if you are at a loca-
tion where the only wire is not the target wire,
but it has a signal on it due to crosstalk . . . it
may appear that you have killed the FOX Jr
warble TONE when you short out the wire. To
make sure, leave the short on the wire in ques-
tion, and go back to FOX Jr, and test the alliga-
tor clips with the HOUND Jr. If the TONE is still
there, you have not shorted the target wire.
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