Owners Guide - White's Metal Detectors
Owners Guide - White's Metal Detectors
Owners Guide - White's Metal Detectors
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Sensitivity -<br />
• Press MENU, ARROW to Sensitivity, press ENTER.<br />
®<br />
Complete Owner’s <strong>Guide</strong> - Spectra 17<br />
• Rx Gain – (Formally called Pre-Amp Gain or Receive Gain) Use ARROW left and right to adjust. Adjusts<br />
the search coil receive signal prior to entering the electronic circuitry for signal processing (pre-amp). Constant<br />
OVERLOAD signals (not over a target) indicated by a low pitch audio beep and display OVERLOAD indication<br />
require a decreased Rx Gain setting. Smooth, stable, predictable results and little or no overload suggest a higher<br />
Rx Gain setting might be usable in that area.<br />
• Tx Boost – Dramatically increases the signal being sent (transmitted) to the search coil (loop). By<br />
increasing the transmit signal, the receive signal is also increased. In low mineralized ground, Tx Boost will<br />
increase detection depth, however, battery life is also reduced significantly, perhaps as much as 50%. May require<br />
adjustment to Rx Gain, Discrimination, and All <strong>Metal</strong> sensitivity levels. Tx Boost may not be usable in some ground.<br />
• Discrimination – (Formally called AC or Motion Sensitivity). Adjust the sensitivity (responsiveness) of the<br />
Motion Discrimination search modes. The highest setting that will operate smooth, stable, and predictably provides<br />
the best detection results. Usually Discrimination Sensitivity is secondary to Rx Gain to reduce external electrical<br />
noise or interference.<br />
• All <strong>Metal</strong> – (Formally Called DC or Non-Motion Sensitivity). Adjust the sensitivity (responsiveness) of the<br />
All <strong>Metal</strong> and Pinpoint search modes. The highest setting that will operate smooth, stable, and predictably, and<br />
provides good pinpoint results, is recommended. Reduced levels typically pinpoint better, however, do not detect or<br />
pinpoint as deep.