White’s Electronics Spectra V3 - Manual (Page 34)

34 Complete Owner’s Guide - Spectra
®
Tip #1. – If Signal loss is significant (50% +), the ground is highly mineralized (contains a lot of
natural ground mineral/metal oxides). Conservative sensitivity settings, multi-frequency operation,
and perhaps a smaller accessory search coil, is highly recommended for such areas.
Tip #2. – If noise is significant (50% +), electrical interference is a major issue for the area.
Conservative Sensitivity settings, offsetting frequencies, selecting different frequency method or a signal
frequency, and perhaps a smaller accessory search coil should reduce Noise levels.
Tip #3. – Best Rx Gain setting is achieved by an algorithmic calculation as a helpful reference.
Humans can almost always better interpret reasonable or workable settings. A setting lower than
recommended may be needed to achieve smooth stable results. In others areas, a setting higher
than recommended may be usable.
Audio Detailed
• Target Volume – How loud a metal target “beeps”. Different audio devices have different sensitivity
levels, and individual hearing varies between audio devices. The ability to adjust volume to different levels is a
helpful adjustment.
• Speaker – Adjust target volume of built-in speaker.
• Plug in Headphone – Adjust target volume of wire connected headphones.
• Wireless Headphone – Adjust target volume of wireless headphones.
• Balance – Balances target volume between all headphone left and right speakers.
Many individuals have different hearing capabilities between left and right ears. Adjusting
for this difference adds comfort and increases the abilities to interpret target signals.
• Audio Threshold – How loud the Threshold (continuous slight hum) is during searching.
Different audio devices have different sensitivity or sound levels. The ability to adjust threshold to different levels for
audio speaker devices is helpful.
• Speaker - Audio Threshold provided by speaker.
• Plug-In Headphone – Audio Threshold provided by plug in wire headphones.
• Wireless Headphone – Audio Threshold provided by wireless headphones.
• Balance – Balances Audio Threshold between all headphone left and right speakers.
• Tone – Pitch or Audio Frequency
• Fixed Threshold – Adjust the tone, pitch, or audio frequency of the threshold hum
without the VCO option. By setting the Threshold tone differently than the target tone
greater ability to recognize target signals over threshold is provided. Typically the
threshold tone is set lower pitched than the target tone, however, personal preference
may reverse this setting.
• VCO Threshold – Adjust the tone, pitch or audio frequency of the threshold heard