When using an inductive amplifier probe, what does shorting the leads of a tone-carrying pair achieve?

Shorting the leads of a tone-carrying pair effectively cancels the induced tone, which is essential for identifying the correct wire pair when the tone signal disappears. When the leads are shorted, the circuit creates a scenario where the tone generated by the inductive amplifier probe is effectively nullified. This helps in distinguishing the intended signal from potentially overlapping or interfering signals, guiding the technician to the correct pair of wires.

By eliminating the tone through shorting, the technician can observe a drop or disappearance of the induced tone, signaling that they have isolated the correct wire pair. This method confirms that the probe is working properly and that the right wires are being targeted, which is crucial during troubleshooting or installation processes in telecommunications.