Tuning kho pob qhov rooj ntawm Hlau Kub Finder
Tune to "Critical state" The tuning adjust knob is using tune the unit to get the "critical" sound: tune the knob to left clockwise, rotating slowly, sound gradually from scratch, from small to large: instrument
used in detection, should be transferred to faint "buzz" sound, can barely hear it, this is "critical"
sound: only to the faint sound when the instrument have the highest sensitivity, if the "critical sound" is too big or no voice, the sensitivity will be reduced. Before the "critical sound" must depress the button and then release, otherwise no voice: If in the detection process, "critical sound" gradually increasing
or decreasing disappeared, according to press the button to restore the "critical sound" detection.
Cov cuab yeej siv tom qab siv, thov tua lub hwj chim hloov.
