Nokta MAKRO The LEGEND, Руководство пользователя

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This setting enables the users to identify targets more
easily and this feature makes the sounds of weaker
signals of small targets such as gold nuggets more
hearable.
When the Threshold Level setting is activated, The LEGEND
generates a sound which is continuously heard in the background
and this sound is called the ''threshold''.
Threshold Level range is from 0 to 25.
The frequency of the threshold tone can be adjusted by the
Threshold Tone Frequency setting (please see below).
Threshold Level setting only affects the mode
currently selected; changes made in one mode do
not affect the others.
Adjusting the Threshold Level
1. Press the Power & Settings Button once. Select the tone setting
using the left and right buttons.
2. The tone settings menu will appear at the top with a plus (+) icon
on the left. Press the plus (+) button once.
3. Using the left and right buttons, select the Threshold Level
setting. The selected setting will be shown framed.
4. The current Threshold Level will be displayed on screen. Select
the Threshold Level using the plus (+) or minus (-) buttons.
5. To go back to settings, press the Pinpoint & Accept/Reject
Button once. To go back to the main screen, press the Power &
Settings Button once.
Threshold Tone for Rejected Targets
In Park, Field and Beach modes
The Threshold tone will blank to indicate detection of a rejected
target.
In Goldfield mode
When The LEGEND detects a rejected target the threshold tone
continues in the background.
Default Threshold Levels
4.5 Threshold Level
PARK
FIELD
BEACH
GOLDFIELD
0
0
0
12
Threshold Level Search Mode
The Threshold Level directly impacts the detection depth of
smaller and deeper targets. If the threshold is set too low (0),
weak signals of smaller or deeper targets may be missed. On the
contrary, if the threshold is set too high (25), the device will be
noisier, the threshold sound will be loud and the target responses
will not be distinguished. Therefore, it is recommended to adjust
it to a level where you can still hear the slight audio variations
caused by a target.
Threshold Tone
Blanking Level
Rejected Target
Threshold Tone
Blanking Level
Rejected Target
High Threshold
Level (25)
Big signal
Small signal
Noise Noise
Threshold Level
21
Optimal Threshold
Level
Big signal
Small signal
Noise Noise
Threshold Level
Low Threshold
Level (0)
Big signal
Small signal
Noise Noise
Threshold Level
Park
Goldfield
Beach
Field