Ака Berkut-5 VERSION 5.01 [40/43] Of objects

COUNCILS ABOUT IDENTIFICATION OF

TYPES

OF OBJECTS

In the course of detecting you will notice those objects that are located close to the

coil can complicate the ability of the detector to ID these properly either with audio or visual

indications. This effect is the so called near zone. Just a person cannot see a small object

brought too close to the eyes the detector also cannot “see’ these near zone objects clearly.

In these cases it is recommended to lift the coil and re scan the object. This will also allow

the hodograph to fit within the the screen and not travel outside of the display area. The

goal is to try and keep the hodograph of the detected object within the confines of the

screen and also to reduce the effects of ground minerals on the hodograph when held to

near the ground.

While using your detector you may notice that large ferrous objects, due to their

size and shape, can appear as a possible coin. How can we properly identify these

erroneous targets?

First of all the audio from these large ferrous targets will also sound “large” and

lifting the coil even 40cm off of the ground the audio will not significantly diminish.

Obviously then this is not a coin.

Secondly, as it was already noted, large ferrous targets often times will have

large distinct loop shape to the hodograph. However if the target is large and the coil is

too close then the signal will leave the screen (see below) and may appear as a coin.

This will often times confuse users new to the detector. See the comments in fig. 36.

Here part of the ferrous signal

“loop” has left the screen and

may now appear as a coin

signal due to the clipping of the

displayed signal.

The same target signal but this time

with the coil raised enough to allow the

entire signal to be displayed properly

without any clipping. Clearly the object

is iron.

Fig. 36

Observing the above drawing we can clearly see the advantage to raising the

coil on certain large or shallow objects in order to keep the signal within the screen.