Triplett Fox 2 & Hound 3 – PN: 3399 - Manual (Page 43)

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To identify the coax, if using the grounded method, momen-
tarily short the shield to ground to active True Trace, and
listen for the cadence change. If it changes, you’ve found
the target coax. If no change occurs, keep searching. This
will not work if a fake ground is being used. An actual ground
is required to activate True Trace.
Note: It is not unusual for the loose turn-able part of a co-
axial connector to have poor electrical contact to the cable
shield until it is screwed on to its mating connector. Conse-
quently, True Trace may not activate if this part of the con-
nector is contacted.
Because of the way that coax is constructed, it is not pos-
sible to find an open in the center conductor. It is possible to
find an open in the shield, if the shield is not shorted to the
center conductor or ground. Connect the center conductor
of the coax to earth ground. Connect the shield and center
conductor at the far end of the coax to earth ground. Con-
nect one clip of the FOX 2 to an earth ground. Experimen-
tally connect the other clip of the FOX 2 to the shield of the
coax, while listening to the tracer tone on this clip with the
HOUND 3. If the level of the tracer tone drops significantly
when the clip is connected to the shield, the shield is prob-
ably grounded and can’t be traced to the open.
If the level of the tracer tone doesn’t drop much, leave the
clip connected to shield. Using the HOUND 3, follow the path
of the coax by finding the strongest signal. An abrupt drop
in the tracer tone level will occur at the point of the open.
Keep in mind, however, if tracing unseen coaxes in the wall