9.18. TONE potentiometer
The TONE potentiometer serves to regulate the frequency of the output sound
of the metal detector, to ensure stability of the audio threshold for specific
conditions.
The recommended levels for TONE potentiometer are level "MIN" and level
"MAX", but in practice it is desirable the user to set the most audible and
pleasant sound to him, without restriction in the choice of level of TONE
potentiometer.
In the presence of external interference and/or under specific field conditions, for a particular level of
TONE potentiometer, it is possible to get instability of the audio threshold of the metal detector. The
instability is removed by adjusting of TONE potentiometer of level different from the current. Select
this level, thus achieving maximum stabilization of the audio threshold of the metal detector.
For specific conditions, at a given frequency, can be obtained better sensitivity of the metal
detector, than in other frequency (other level of TONE potentiometer).
Under the same conditions, when connected to the metal detector of another, additional, BLISSTOOL
search coil, other than the standard 28 cm (11") DD search coil BLISSTOOL DD28SC2, with which the
metal detector is equipped in the standard package, the best base setting of potentiometer TONE
may be different from the user's chosen a good base setting for the standard 28 cm (11") DD search
coil. For the new search coil, the best base setting of potentiometer TONE is that in which the metal
detector detects with a clear rich sound the weak signals from deeply buried metal objects. In this
regard, the best setting is a combination of the individual settings of potentiometer TONE and
potentiometer FREQUENCY.
BLISSTOOL LTC64X
- User Guide (version EN201405101504)
Page 32 of 42
