Sensitivity - Whites DXF Manual

Chapter 5 DFX
46
™
Pro Options
V.D.I. SENSITIVITY
80
MIN MAX
Tips - Lower V.D.I. SENSI-
TIVITY level (smaller
numbers) offer fewer and
more reliable display
indications. However,
some deep targets may or
may not respond with a
display indication. Higher
V.D.I. SENSITIVITY levels
(higher numbers) produce
more display indications,
but less reliability. Levels
of 86 and above produce a
third V.D.I. digit (.0),
providing greater resolu-
tion. Settings from 0 - 99
are available.
+19.8
5
¢
-95
Third number (.8)
(Display section)
24. V.D.I. Sensitivity
Controls how strong a target must respond to
produce a display indication, and controls a third
digit (fraction) of the V.D.I. number.
V.D.I. Sensitivity controls the intensity (strength)
of the target signal needed to activate the display
indications. A low V.D.I. Sensitivity setting would
require a strong target signal to trigger the display
indications. A higher V.D.I. Sensitivity setting
would require very little target signal to trigger the
display indications.
To provide greater specific target resolution, levels
of 86 and above will provide a third V.D.I. digit
(.0) to better evaluate targets. During EDIT only
the first two digits can be programmed ACCEPT or
REJECT.
As with all sensitivity levels, if set too high for the
area, the detector will become unstable and the
display indications unreliable.
Low ground mineralization is typically a good
indication that high V.D.I. sensitivity settings are
+95
appropriate. Heavy mineralization or electrical
interference are conditions where a lower V.D.I.
Sensitivity setting is appropriate.
This feature is designed to allow adjustment of the
display stability. However, because the
instrument's display and audio tone are closely
associated in many of the audio modes, the V.D.I.
Sensitivity may increase or decrease overall audio

sensitivity.