White’s Electronics Spectra V3 Field Guide - Manual (Page 9)

For best results, instrument start up should be followed by a manual ground balance.
Pull and hold trigger, then press and hold enter while pumping loop up and down
over the ground until threshold is smooth. Release enter then release trigger. Also
helpful as an option to check tracking from any search mode.
Report - ON (“X” in box) Activates ground tracking indicator arrows on display reports
(indicates) the automatic increasing or decreasing of the ground balance point.
Inhibit - ON (“X” in box) When on, delays the point automatic tracking begins to
adjust to the ground. Helps in iron infested ground. Use off in widely variable ground
with little or no iron to allow immediate tracking.
Speed - Adjust the rate of ground tracking – higher numbers “track” faster to changes
in the ground.
Offset - Manually moves ground balance point from perfect balance. Positive offset
often used in highly mineralized ground to enhance low conductive and small (gold,
silver, coins) targets in radically changing noisy ground.
Locktrac - Locks ground setting. Turns off all tracking. Turn ON and use manual
method above. Best used for repeatable responses on very deep targets, and rejec-
tion of difficult minerals.
LIVE CONTROLS - GROUND BALANCE/TRACKING
Ground Balance/Tracking
Ground Balance/Tracking Zoomed
Ground Balance/
Tracking
Ground Probe -
Provides helpful information -
• To determine the severity of ground
(weak ground vs strong ground).
• Targets can also be analyzed for VDI
number, phase and target strength at
each frequency. To use - (from Zoomed
Live Control) Menu/Tab to Zero and press
Enter with loop in air. Hold loop on the
ground or target to read results.
More in “Complete Owner’s Guide”
Pg 9