My Program For White's Spectrum XLT and XLT E-Series
White's
Spectrum XLT metal detector was my second machine that I used for 6 - 7 years.
This Metal Detecting Program, a combination of parameter settings, was a result
of Try and Error process that continued throughout my experience with Spectrum
XLT.
My goal was to create an optimal program primarily for detecting Coins and Jewelry in the North-East USA. This program enabled me to recover some remarkable relics as well.
The XLT's versatility of program parameters, 39 total, allows the user to adjust the machine to any field condition that one might encounter at different geographic locations. Here, I divided the changeable parameters into two groups for better understanding of their utilization:
Group A includes the parameters, Basic Adjustments, that I don't change every time I encounter different metal detecting conditions such as the type of soil, concentration of junk, and type of the top cultural layer.
Group B includes Pro Options that I change even a few times during the treasure hunt according to the site conditions.
Group A - Basic Adjustments:
TARGET VOLUME - 63
AUDIO THRESHOLD
- 2 (for 9.5" Search Coil), 1 (for 8" Search Coil)
TONE (AUDIO FREQUENCY)
- 232
AUDIO DISC. - on
SILENT SEARCH - off
MIXED MODE - off
A.C.
SENSITIVITY - 65 (for 9.5" Search Coil), 68 (for 8" Search Coil)
D.C. SENSITIVITY
- 31 (for 9.5" Search Coil), 33 (for 8" Search Coil)
BACKLIGHT - 0
VIEWING
ANGLE - 25
Group B - Pro Options:
"AUDIO"
RATCHET PINPOINTING
- off
S.A.T. SPEED - 5 (for 9.5" Search Coil), 6 (for 8" Search Coil)
TONE I.D. - on
V.C.O. - on
ABSOLUTE VALUE - off
MODULATION - off
"G.E.B./TRAC"
AUTOTRAC
- on
TRAC VIEW - off
AUTOTRAC SPEED - 10
AUTOTRAC OFFSET - +0
TRAC INHIBIT - on
COARSE G.E.B. - auto
FINE G.E.B. - auto
"DISCRIMINATION"
DISC.
EDIT
reject: -95 to -20, +95
accept: -20 to +94
BLOCK EDIT - same
LEARN ACCEPT - off
LEARN REJECT - off
RECOVERY SPEED - 20 (for 9.5" Search
Coil), 17 (for 8" Search Coil)
BOTTLECAP REJECT - 1
"DISPLAY"
VISUAL
DISC. - on
ICONS - on
V.D.I. SENSITIVITY - 84 (for 9.5" Search Coil),
85 (for 8" Search Coil)
D.C. PHASE - on
GRAPH AVERAGING - on
GRAPH
ACCUMULATING - on
FADE RATE - 9
"SIGNAL"
TRANSMIT BOOST - on
TRANSMIT FREQUENCY - 4
PREAMP GAIN - 5 (for 9.5" Search Coil), 6 (for 8" Search
Coil)
notes:
If you wish to maximize detection depth and maintain detector's stability, use AC Sensitivity, V.D.I. Sensitivity, and Preamp Gain adjustments. Preamp Gain has a more dramatic adjustment for detection depth than AC Sensitivity as Preamp Gain is positioned at the front of the circuitry prior to the signal being analyzed by the processor. AC Sensitivity is positioned at the tail end of the circuitry, after the signal has been looked at by the processor. V.D.I. Sens is somewhere in the middle. When increasing AC Sens and Preamp Gain, V.D.I. Sens if not also increased, acts as a bottle neck promoting instability. If only increases in one of these options is possible, Preamp Gain should be the first choice. The Air and Ground Balance should be completed each time after these adjustments.
When turned ON, Trac Inhibit prevents Auto Trac from tracking on corrosion associated with most metals. Turning OFF Trac Inhibit can be used for detecting gold coins, rings, or nuggets as gold doesn't corrode. Maximum tracking is also desired in extremely bad ground and can be achieved by turning Trac Inhibit OFF.
If you need to put Spectrum XLT into All Metal Mode, turn the Audio Discrimination OFF. Otherwise, keep this feature ON as there are usually many pieces of nails and scrap metals in the ground around dwellings or cellar holes.
Happy Hunting!
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