41
Chapter 5 DFX
™
Pro Options
18. Bottlecap Reject
Adjusts how strongly the instrument rejects or
breaks up on iron.
Most starting programs use the minimum setting.
As larger numbers are selected, more bias rejection
against iron occurs.
The advantage of higher BOTTLECAP REJECT
settings is that in high-trash areas more decisive
iron rejection occurs. Trash becomes easier to
identify by the broken sounds they produce.
The disadvantage of a high Bottlecap Rejection
setting is if an iron target is close to a good metal,
the high degree of bias against iron may cause the
detector to cancel both responses. Another disad-
vantage is that all targets, iron and non-iron, tend to
start sounding more broken at high levels of
BOTTLECAP REJECT. The operator needs to
fine tune BOTTLECAP REJECT according to their
preferences and the conditions being searched.
Some ground conditions make it difficult for the
instrument to recognize iron. BOTTLECAP RE-
JECT allows compensation for these areas.
4
BOTTLECAP REJECT
MIN
MAX
(Discrimination section)
Tips - If having difficulties
recognizing the broken
sounds of iron, try increas-
ing BOTTLECAP REJECT.
Settings from 1 - 20 are
available.