Long range locator systems (or frequency antenna metal detectors) that have the power of radiating and spotting and have VDI number settings in Editing and Surface and Size Threshold have scientific principles in coordinate finding that must be followed by the operator or user in order to From a practical point of view it can accurately determine the center of the main target

Changes in the settings of the long range locator (that is the metal detector of the frequency antenna) have VDI number settings in Edit and Surface and Size Threshold do not require any Ground Balance