- #1
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I have had my Deus II for a couple of weeks, and have been hunting parks and old houses to learn it. I'm coming from a Whites Spectra V3i, so I'm not a total newbie, though I'm new to the Deus, obviously. I'm having trouble learning to spot "iron falsing" and was hoping others might have some insights. On the V3i, I was used to old iron giving "iffy" signals that made me wonder if there might be something good next to iron, particularly on the "edges" of the iron thing. But they tended to be pretty "iffy" and I knew it was a gamble to dig them. But I've had a few on the Deus II that seemed really good signals, that turned out to be iron.
A prime example is last night I got a fairly quiet signal with a TID of 99 at an old house site. I had the XY display on and it showed a perfect diagonal straight line (no hooks or tails) in the non-ferrous quadrants. It seemed a perfect signal for something good. So I dug. I dug to the point that my knife-type digger was entirely in the ground, and I still wasn't finding it. The signal remained good over the hole, though, so I got a bigger shovel and went deeper. About a foot and a half down I found the remains of an old bucket. There was nothing in it, and the walls were rusty and crumbling, so I assume it was at least partly iron. I ran a piece of it under the coil and sure enough, got that nice high TID signal. I've seen people saying to learn how the sounds to know the good targets from the bad, but this was a perfect little high pitched sound to my ears -- smooth, not jumpy or erratic, and repeatable from multiple directions over the target. It sounded great, and showed as non-ferrous, but it was just old iron trash.
I know detecting isn't a perfect science, but is there a trick to shorten the learning curve a little? The low pitched iron grunts are easy to ignore, but when you have a high tone and it says it's non-ferrous, how do you know when it's being fooled by old iron? Is it even possible to know, short of digging?
A prime example is last night I got a fairly quiet signal with a TID of 99 at an old house site. I had the XY display on and it showed a perfect diagonal straight line (no hooks or tails) in the non-ferrous quadrants. It seemed a perfect signal for something good. So I dug. I dug to the point that my knife-type digger was entirely in the ground, and I still wasn't finding it. The signal remained good over the hole, though, so I got a bigger shovel and went deeper. About a foot and a half down I found the remains of an old bucket. There was nothing in it, and the walls were rusty and crumbling, so I assume it was at least partly iron. I ran a piece of it under the coil and sure enough, got that nice high TID signal. I've seen people saying to learn how the sounds to know the good targets from the bad, but this was a perfect little high pitched sound to my ears -- smooth, not jumpy or erratic, and repeatable from multiple directions over the target. It sounded great, and showed as non-ferrous, but it was just old iron trash.
I know detecting isn't a perfect science, but is there a trick to shorten the learning curve a little? The low pitched iron grunts are easy to ignore, but when you have a high tone and it says it's non-ferrous, how do you know when it's being fooled by old iron? Is it even possible to know, short of digging?