8
others. You have now determined the approximate
discrimination points for the rejected objects.
For example, the small nail discrimination point
may be 4 and the pull-tab discrimination point 6.
7. Push and hold the TRIGGER-SWITCH. The 1266-X is
now operating in the DISC 2 mode.
8. Repeat steps 5 and 6 and you will note that the
DISC 2 discrimination points are about the same as
DISC 1 discrimination points.
9. The actual discrimination points for different
targets may vary slightly from DISC 1 to DISC 2 and
from detector to detector. However,
discrimination points are determined mainly by
such factors as target size, shape, depth, type of
metal and ground mineralization.
10. Some objects such as shallow bottle caps, bent
pull tabs or trash less than 2 inches from the coil
may be difficult to reject. The 1266-X will instead
respond with a strong broken signal, which will,
usually disappear if the search coil is raised slightly.
(The strong signal of a good target will just get
weaker when the coil is raised).
11. The 1266-X will remain silent when some objects
are rejected however other objects may “snap,
crackle and pop” as they are rejected. This is a
perfectly normal response indicating that the
powerful discrimination circuitry is doing its job.
12. Large pieces of trash such as beer cans or jar
lids may sound like good targets no matter what
you do. With a little practice however, you will be
able to tell the difference between a large target
and a small coin sized object.
13. The chart on page 7 shows some of the
different target responses you may expect at
different levels of discrimination. Note that as you
increase the discrimination level, you progressively
eliminate more targets including some good ones,
such as nickels and gold rings.
DISCRIMINATION POINTS
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