Minelab X-Terra 505 Instrukcja Obsługi Strona 12
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Threshold
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Threshold settings range from -5 to 25. Having a proper Threshold
setting is very important and should not be taken for granted. Where
you set yours will depend on how well you hear tones and where you are
hunting. For hunting old coins at old sites, I would discourage anyone
from using a negative setting.
My advice is to set your Threshold at a level that is just barely audible
(that’s why it is called a threshold). Setting it too loud will be distracting
and could result in small/deep targets not producing enough audio
signal to overcome the Threshold tone. Setting it too low (e.g. silent
search) can also result in small/deep targets not making enough audio
tone to reach the level of your Threshold. Remember, the Threshold tone
is a starting point where all audio signals begin. If it is set too high, you
won’t hear those subtle changes.
And if it is set too low, you might miss “whisper” signals from those deep
old coins (that others have missed).
With that said, I should add that a buddy of mine indicates there are
a couple sites where he nds hunting with a negative Threshold is
benecial. When he hunts for coins at a picnic area that is heavily infested
with aluminum foil, setting a negative Threshold serves as a “surface
blanker” against those shallow, small pieces of foil.
Understanding your X-TERRA - Getting Started
If the Threshold is set to a positive value, high enough
for you to hear the faint hum, the detector will
produce target signals and a Threshold sound. It is
recommended that you set a Threshold that is still very
low; a high Threshold can mask small target signals.
Target #1
Target #2
Audible Target Response
Threshold
=
Volume
= 30
Inaudible
Target #1
Target #2
Audible Target Response
Threshold
=
Volume
= 30
If the Threshold is set to a negative value,
small target signals will not produce a signal big
enough to go above the Threshold of audibility.
- Understanding your 1
- Contents 2
- 3
- Greetings from Digger 4
- Product Timeline 5
- Product Comparison 6
- Minelab’s Documentation 8
- 9
- Battery Status 10
- Noise Cancel Channel 11
- Threshold 12
- Sensitivity 14
- 15
- MINELAB WARNING!!!! 16
- 17
- Manual Ground Balance 18
- 19
- 19
- 19
- 19
- Auto Ground Balance 20
- Tracking 21
- Tracking Ground Balance Oset 22
- 23
- 23
- Beach Ground Balance 24
- 25
- 26
- 26
- 27
- Discrimination Patterns 28
- Target ID Stability 29
- 30
- 30
- 33
- Treasure Talk 34
- Audio Tones 38
- 39
- 39
- 39
- Hunting by ear 40
- 43
- Coil Options 44
- (not compatible with 45
- X-TERRA 305) 45
- Coil Applications 47
- 6-Inch Concentric Coil 51
- 6-Inch Double-D Coil 51
- X-TERRA 52
- Coil Design & Manufacture 56
- 59
- 60
- 60
- 60
- 61
- Choosing the Right Coil 61
- 61
- 61
- The Hunt 62
- 63
- Pinpointing 64
- Pinpoint Sizing - X-TERRA 705 65
- Full response 65
- Masked response 65
- My Three Rules of Consistency 66
- 2. Consistent Sound 67
- To Dig, or Not to Dig? 68
- My Recommendation 69
- Gold Prospecting 70
- 71
- Minelab’s VFLEX Technology 72
- 73
- 75
- 75
- Q & A with Laurence 79
- Time delay (phase) diagram 81
- 85
- My Settings 86
- 87
- 87
- 87
- 88
- 7 8 9 10 88
- Glossary of Terms 90
- Conclusion 92
- 93
- 93
- 93
- 93
- 93
- Dear Reader 94
- Doc name: RHUYXT2011 95
- About the Author 96
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