Depth Discrimination?

[filo]

I'm not super knowledgeable about metal detector design but would it be possible to incorporate some sort of depth discrimination into a future version of the etrac (or other detector)? Often, depth is one of the most reliable readings and I like to dig almost anything beyond a certain depth. It seems to me that depth discrimination would be really useful. Thoughts?

 

[NebTrac]

I agree at times. My two oldest coins have come from depths less than 3 inches though. I think the big problem maybe when you have a canning lid or smashed aluminum can at 12". To me anyway they can sound the same as a quarter at 6-8 inches...and I don't know how they would be able to differentiate the two.

NebTrac

 

[ziphius]

where you could establish that a majority of old targets are deeper than some threshold. I've found that scaling back the gain to 25 or so acts as an audio discriminator for depth - makes it much easier to hear the difference between shallow an deep signals. I don't have to glance at my depth meter much anymore, usually only to visually confirm what I'm hearing in the headphones. I agee though, it would be cool to have the ability to have a setting like SHALLOW AUDIO = OFF, controlled by the user who would set which depth this would kick in at. - Jim