Triplett Fox & Hound Jr. – PN: 3375 - Manual (Page 28)

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HINTS:
The HOUND Jr works by capacitively sensing
the electrostatic field radiated by wires carry-
ing a signal (tone). The greater the radiated
field, the better the HOUND Jr’s ability to locate
a wire. Anything that reduces the intensity of
the field will impair the HOUND JR’s effective-
ness in locating a wire.
In general, several things affect field intensity .
. . shielding, signal (tone) amplitude on the wire,
and wire dress. In instances where a system is
shielded (shielded wires, metal junction boxes,
metal conduit, etc.), the effectiveness of the
HOUND Jr is impaired. In multi-wire cables,
grounded wires, or wires connected to low im-
pedance circuits, adjacent to the target wire can
act as shields, reducing the HOUND Jr’s ability
to sense properly. Spreading the wires apart
will reduce the shielding effect and allow the
HOUND Jr to work better. Defects in a cable or
wires, such as shorts or opens, will reduce the
signal amplitude and hence the HOUND Jr’s