Ака Berkut-5 VERSION 5.01 [42/43] About equalizer use

ABOUT EQUALIZER USE

The "EQUALIZER" function can be thought of as another form of a discriminator.

You can use the equalizer to accept or reject from some groups of objects.

Due to the nature of the signal processing in some metal detectors

Objects may be louder (e.g., foil, aluminum caps, etc. ) and

some quieter ( for example, large objects made of copper ) . With EQ you

can adjust the volume of different objects as you see fit.

Also , if you work in the " ALL METAL " , you can make the volume , for example,

of ferrous objects quieter than those of other signals. In this case you will continuously

monitor the situation under the search coil without straining ears.

EXAMPLES OF SOME VDI

A table of VDI values for some objects measured in the air.

OBJECT Number VDI

Small ferromagnetic objects -90... 0

Grenade Ф1 -30...-35

Foil 0... +20

Small coin (чешуйка) silver +15... +35

The Golden Ring +25

Coin (10 copeck 2004 г.) +30

Coin (5 copeck 1961 г.) +35

Coin (10 rbl. of 1899) gold +38

Coin (1 copeck of 1869) copper +61

Coin (Fifty-kopeck piece of 1924) silver +77

Coin (Denga of 1749) copper +78

Coin (1 rouble of 1878) silver +80

Coin (2 copeck of 1840) copper +81

Coin (5 copeck of 1786) copper +85

The specified values of VDI’s of the objects are rough and can differ from real

depending on type of a ground, depth type of object and size/frequency of the coil etc.