Τhe “GROUND BALANCING” function.SPECTRA gold detector analyses both the soil mineral content & level of wetness,the result appears as GROUND VALUE identification number, on a scale 00 to 99.This number determines the false signals SPECTRA rejects, also informs the user of the ground type to be scanned

Long range locators from competitors are simple frequency generators, with locked metal frequencies and not any ability to sense ground conditions. Those frequency generators are not specialized for ground usage, they might operate well in soil with average minerals, but do not penetrate on neutral grounds. Even worse in heavy mineralized soil will give false target signals. The DGB – Digital Ground Balancing feature, programmed in SPECTRA long range locator to assist the reliable target indication, and maintain maximum range and stable operation regardless of the ground type.

As a second step, the “SPECTRA track” system, completes the ground balancing accurately, by selecting variable waveforms of the transmit frequency to match the various soils.
SPECTRA gold detector features a worldwide cutting edge technology invention.
DFS – Digital Frequency Synthesis. The only long range gold detector on the market with signal output by a DSP microprocessor, which is fast enough to run at 40 MIPS (million instructions per second), performing corrections to frequency accuracy automatically. Every metal has its own specific molecular frequency, up to present day, long range locators were unable to maintain molecular frequency signal stable enough to make visible only the desired target, faults were common practice from minerals and ghost targets due to solar storms and earth magnetic fields.

Select the metal mode and a counter informs when the SPECTRA signal has put enough energy to the ground to start scanning the target. When the counter stops the electromagnetic field is strong enough and the message “START SCANNING” alerts the operator to pinpoint the target. All other metal objects in the area are eliminated, and the desired element absorbed enough energy to become visible.

Automatic Ground Balance. Signal examples on various soil conditions
“whatever the ground SPECTRA gold detector can handle it, no matter the minerals”

Amplifier purpose is to power the antenna L rods. This way the system is not self-potential. By increasing user conductivity, the amplifier permits everyone to be a successful user. Contains a 9 VDC battery for power supply and features a new Weight Check Control (W.C.C). Once the energy line between the SPECTRA probe and the target has been verified, the weight check can be used by the rotary knob. Set it to starting position and smaller quantities corresponding to grammars are also accepted. As the knob is rotated to the right only large quantities in Kilograms are located.

• 16 bit processor 40 MIPS speed – 160 MHz clock
• 32 bit DDS synthesizer chip for signal waveforms
• Digital frequency synthesis x 20 PLL frequency generator with automatic 0.1 Hz frequency stabilizer
• Modes to scan gold, silver, copper, bronze, lead, iron, aluminum, diamonds, water, void & free mode
• Manual frequency selections at 1Hz increments
• Dot Matrix LCD 64 x 128 resolution with 8 level backlight
• 80 mA battery consumption / 180 mA at full backlight. Constant battery condition indication
• “APO” – Automatic power on to conductive ground
• “DGB” – Digital ground balance to cancel interference of ground minerals
• Soil mineral content indication with scale 00 – 99 & icon
• “SPECTRA track” – Variable waveform according to the ground type
• “SPECTRA graph” – Real time waveform animation
• On screen counter for signal inductance, alerts to start scanning when the energy field is strong enough
• BNC ground probe and main unit in one piece – no cables – compact design
• Unit rotates 360 degrees for easy viewing of screen
• Tactile keys & sound indication
• Signal receiver with target Weight Check Control, power amplifier & gold plated L rods
• Receiver antennas do not suffer from oxidation due to human skin PH
• Distance up to 1600 m. range / Depth 7 m.

Radio Frequency (RF) signals accurate to 0,1 Hz stability, enough to stimulate only the desired elements. That accuracy in signal stability is controlled by a technologically advanced DSP microchip running at 40 MIPS inside the SPECTRA. Signal is channeled through the soil over a considerable distance at varying waveforms that filter out the interference caused by soil minerals. The emitted signal is induced into the soil in a directional radius of 360°. And because of that induced signal the targets become “visible”. Targets can be located to all directions, and the user is not limited to search from a specific direction. Now that the signal is transmitted from the SPECTRA long distance locator, the expected target responds with a solid and identical signal. This solid signal can be traced by the operator using the “L” antenna rods, and therefore all non-desirable targets are eliminated. That signal between the SPECTRA long range locator and the target becomes a “path” for the operator to trace the target. The whole procedure lasts few minutes to realize if there are any specific targets within the location range of the SPECTRA long range locator.

Range of the SPECTRA can vary for many reasons. The first and most important variable is size of target. The larger the target the range is extended. That is followed by soil conditions (presence of electrolytes) and length of time in the ground. Another factor that enhances the operational performance of the SPECTRA, is the chemical change of the soil immediately surrounding the target. Those targets that have a tendency to oxidize, whether it be the object itself or its container, will present a stronger signal. Because of that oxidation factor, the target will offer a stronger potential for amplifying the SPECTRA transmitted signal, therefore an object that is buried for a long time in the ground absorbs the signal in a larger percentage than a freshly buried target.