Screen and Sounds on a 9" Deep Coin - Comments...

[earthmansurfer]

Hey guys,

I thought it would be interesting to get your comments on this target. It was around 9" or so deep and zinc. It's in bad shape, nothing special but I got a lot of swings in over the target so we could investigate the sounds and screen and also changed fast on to fast off for a noticeable improvement in the signal. Worth noting that the ground here is full of iron.

I wonder what you all think of how the target crosshairs jump around, relative to both the CO and Fe numbers. Is that like on your deeper targets as well? (The ground here is mild but high in iron mineralization - You can see my sensitivity gets up there easy in auto.) Notice when I went into quick mask and an open screen how the crosshairs often jumped down to Fe values around 18 to 24 and lower.

Is this how a 9" deep zinc would sound in your ground? I'm in Germany but it's about penny size. The target initially gave a bit of that "thunk" sound but it mostly went away during filming but I got some of it to come back by lowering the sensitivity. Thanks again to Tom, Markg, etc. for bringing this to my attention. I heard it a bit today and would check those targets.

Watch the video on youtube at 480 and fullscreen to see the screen well.

[video]http://www.youtube.com/watch?v=0ansVQFk5aw[/video]

 

[Jason in Enid]

I think that was a fairly typical response. You had the majority of the repsonses coming in as a zinc coin. The bounciness and "thunking" typically indicate it's on the outer edge of target response, with seems about right for a penny sized zinc target.

Great video, thanks for posting it.

 

[earthmansurfer]

Thanks Jason, would you say 8" to 9" is good or great depth on a zinc for an E-Trac? I ask because I'm trying to understand my ground and how the iron mineralization affects things. I imagine I could get another 1" or 2" on a zinc cause when I turned the sensitivity up to 30 manual, it came in better.

 

[Jason in Enid]

Thanks Jason, would you say 8" to 9" is good or great depth on a zinc for an E-Trac? I ask because I'm trying to understand my ground and how the iron mineralization affects things. I imagine I could get another 1" or 2" on a zinc cause when I turned the sensitivity up to 30 manual, it came in better.

That's very possible. Different soils will give different results. I don't remember what the original sens. was set at. IF you can run mostly stable at 30, then that's where you need to keep it!

 

[moonshine]

I wonder what you all think of how the target crosshairs jump around, relative to both the CO and Fe numbers. Is that like on your deeper targets as well?

seems perfectly normal to me. if anything those numbers a bit less jumpy than what im used to.

 

[Bill_S]

On some of the deeper targets I get I don't really pay a whole lot of attention to the numbers but more to the sound. I usually run a lot of discrimination and if it stays in the open area of the pattern and its fairly repeatable I usually dig it The good thing about the Etrac is it will be pretty accurate even on targets that are on the edge of detection.

 

[EtracTom-AdirondacksNY]

Yeah that nice damp soil and the corrosion of the halo around the coinfor being in the ground for so long allows it to be found deep. I bet you could get an easy few more inches out of that target if it was deeper.