bigscoop
Gold Member
- Jun 4, 2010
- 13,535
- 9,072
- Detector(s) used
- Older blue Excal with full mods, Equinox 800.
- Primary Interest:
- All Treasure Hunting
Broadening You Notch Settings:
“Clipping” has probably cost most discrimination detectorist more desirable recoveries then they know. Clipping is something that frequently occurs when items are positioned in such a way, or returns are too weak or too deep, to generate accurate and/or tight target ID. As a result the item will generate returns that are either just under, or just above, your current notch settings, thus often resulting in erratic chirps and momentary barks. Masked targets can also create this same scenario. Of course, undesirable targets can present this same type of chirps and barks as well.
So how do we account for these situations?
The only way we can account for these situations when in the AM mode is by broadening our notch settings and then switching to the AM mode once the source of the return has been pinpointed and isolated. If we don't broaden these settings then it becomes possible, if not even likely, that these desirable chirping and barking items will be too quickly dismissed and/or filtered out altogether by the machine.
This is just another way in which applied filtering (settings) can come at a cost somewhere else. Notch is a great user convenience and I apply it all the time when in the disc mode, even have my favorite user profiles when detecting specific areas, etc., but it can also be highly unreliable in certain situations.
At best, the notch feature should only be viewed as a general reference tool, highly accurate at times, not so much at others.
“Clipping” has probably cost most discrimination detectorist more desirable recoveries then they know. Clipping is something that frequently occurs when items are positioned in such a way, or returns are too weak or too deep, to generate accurate and/or tight target ID. As a result the item will generate returns that are either just under, or just above, your current notch settings, thus often resulting in erratic chirps and momentary barks. Masked targets can also create this same scenario. Of course, undesirable targets can present this same type of chirps and barks as well.
So how do we account for these situations?
The only way we can account for these situations when in the AM mode is by broadening our notch settings and then switching to the AM mode once the source of the return has been pinpointed and isolated. If we don't broaden these settings then it becomes possible, if not even likely, that these desirable chirping and barking items will be too quickly dismissed and/or filtered out altogether by the machine.
This is just another way in which applied filtering (settings) can come at a cost somewhere else. Notch is a great user convenience and I apply it all the time when in the disc mode, even have my favorite user profiles when detecting specific areas, etc., but it can also be highly unreliable in certain situations.
At best, the notch feature should only be viewed as a general reference tool, highly accurate at times, not so much at others.
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