White’s Electronics MXT 300 - Manual (Page 9)

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2. Blocks - A series of 16 blocks appear along the
bottom portion of the display and line up with the
indications on the reference label below the display.
It is important to note these blocks are a different
separate opinion compared to the VDI number and
they may or may not agree. There is signifi cance to
how these blocks appear. A full block indicates the
MXT 300 is confi dent of indication. A half block in-
dicates the MXT 300 is not confi dent but is making
an educated indication. A quarter block indicates the
MXT 300 is not confi dent at all, guessing based on
what little information the target is producing.
3. Labels - The most common metal target (or tar-
gets in some cases) to indicate that particular Block
is listed on the display as well as referenced in an
expanded format on the label below the display. If
two targets are listed the fi rst to be listed is the most
common and the second listed slightly less common
than the fi rst.
4. Depth Indication - Trigger (on hand grip)
squeezed and held, the display indicates the depth
of coin sized metals. Starting at 12 inches and
indicating in descending order (as the target gets
closer to the bottom of the search coil) the DEPTH
= 12 provides not only an aid in better locating the
target in the ground (how deep you will need to
dig) but also clues as to if the metal target is likely
worth digging. For example if the display is unsure
(quarter block indication), is indicating in the FOIL
range, and the depth reads deep 6 to 12 inches, you
should dig the target. Only the heavier more valued
targets get deeper into undisturbed ground. If the
display reads unsure (quarter block), indicates in
the FOIL area, and the depth reads shallow 0 to 2
inches, the target is most likely not worth digging.
Foil will not sink deeply into undisturbed ground.
Targets that indicate depth readings from 3 - 5
inches are not as predictable.
5. PP Blocks - Trigger (on the hand grip) squeezed
and held, the PP blocks aid in pinpointing the exact
center of the metal target. Only when the search coil
is directly over the center of the metal target (lon-
gest possible length PP Blocks) is the depth reading
giving you the most accurate depth indication. Also
of importance is that with some experience the rela-
tive size and shape of the metal target can be recog-
nized during pinpointing.
Chapter 4 MXT 300 Display
Note: Dotted blocks for illustration purposes only.
Half block indicating MXT 300 is not certain but possible.
Note: In this case, the 1¢ is the probable ID.