The proper adjustment of THRESHOLD potentiometer (setting lower levels) is one of the options by
which BLISSTOOL LTC64X can be turned into a completely silent (quiet) metal detector.
9.8. SILENCER potentiometer
The SILENCER potentiometer serves for setting of the degree of suppression
of the background sound and for stabilization of the audio threshold.
The recommended levels for SILENCER potentiometer are from level "OFF" to
about level "2". Most often works at level "OFF".
The background sound is a set from defined by THRESHOLD potentiometer
audio threshold of the metal detector and imported external noises (the base
signal on the ground and other external interferences).
In most cases, the volume of the background sound is equal to the volume of
the audio threshold, but its inequality due to imported external noises.
On the higher level is set potentiometer SILENCER, the more stable is the audio threshold of the
detector.
With the increase of the silencer, not to overdo, since any increase improves the stability of the
metal detector, but at the same time makes it less sensitive to weak signals from deep buried metal
objects.
Recommended settings in which retains good depth of detection:
- For v2: SILENCER = from "OFF" to "3";
- For v2i: SILENCER = from "OFF" to "5";
- For v3: SILENCER = from "OFF" to "FULL".
In the level "OFF" of SILENCER potentiometer, the silencer is turned off and the volume of the
background sound is equal to the volume of the sound produced by the metal detector at
detection of a metal object.
At levels, from level "1" to level "FULL", of a SILENCER potentiometer, the silencer is turned on
and with each next level is increased the difference between the volume of the background
sound and the volume of the sound produced by the metal detector at detection of a metal
object.
Real, the SILENCER potentiometer reveals many opportunities to change the behavior of the
metal detector, in order to optimize it.
With the silencer turned on (from level "1" to level "FULL" of the SILENCER potentiometer), the
volume of the background sound (audio thr interference) can be adjusted so that it could
hardly be heard by the user, while the volume of the sound produced by the metal detector at
detection of a metal object to be several times greater, so that when a metal object is detected is
obtained "eruption" of the sound produced by the metal detector.
In terrains with low mineralization and absence of external noise, it is advisable to operate at
lower levels of SILENCER potentiometer.
In highly mineralized terrains and in terrains with a high content of ore, SILENCER
potentiometer can be set at higher levels, for ignoring at a greater degree of the base signal
from the terrain and maintain of the stability of the metal detector.
With the silencer turned on, BLISSTOOL LTC64X can be configured to work with maximum adjusted
audio threshold set by THRESHOLD potentiometer, ie with maximum sensitivity and thus the
maximum depth of detection, and still be stable.
Furthermore, by examining the detected metal object at different levels of SILENCER
potentiometer, can be obtained basic idea of how deep it is.
In v3, depending on whether the silencer is turned on or not, are clearly distinguish two separate
working modes of the metal detector:
1/ Mode "Explosion": GAIN = between "5" and "MAX", SILENCER = "OFF", THRESHOLD = "5"
(without audio threshold);
BLISSTOOL LTC64X
- User Guide (version EN201405101504)
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