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SE Pro Question...If you run Iron Mask on. Set at 18 does it

E

Elton

New member
Effect the overall depth ??. In your opinion will you still get the Silver hits thru the nulls or is that a little to much iron mask ?
 
Elton -- I can't answer you about the nulls for sure, but Bryce insists silver will ring through the nulls as long as the silver is not completely masked by the iron. As far as depth...think of it this way...in my experience, in my soil, coins at the fringes of the SE Pro depth range still have a good, high conductivity number most times, but the ferrous number starts to get inaccurate. I have hit some deeper coins (a 6 1/2" memorial penny just today for instance), where the conductivity number was the normal 28-29, but the ferrous number was bouncing around -- as high as the teens to near 20. SO, if you had your iron mask set at, say, 10, you would not have heard this coin except for an occasional chirp. However, with iron mask at 18 (or at 22 like Bryce prefers), you would have heard the coin on most if not all of your sweeps. SO -- bottom line, by running iron mask higher, you can perhaps "gain depth" kinda, sorta -- if that makes sense. Running IM 22, I was able to hear this 6 1/2" coin -- and if I was running, say, IM 12, I would not have heard it on near as many of my sweeps. And if I thus guessed it to be junk and did not dig, then I would have "lost depth." Make sense? I have found in my test garden that the upper limit of FE numbers on a deep coin seems to be in the low 20s -- hence, I presume, the reason Bryce suggests 22 IM.

Hope that helps.

Steve
 
That is a good question. In my limited time on this machine (I must have in the 150 hours now), and in this hobby (several years now), I would have to say yes and no. In theory it should have little effect. But from what I have learned all metals will exhibit some ferrous properties. What that means to me is that as we disc out more iron we decrease the overall depth of all coins no matter the composition, but depending on their lay,to some degree. Now those of you with coin gardens should be able to prove or disprove this by turning your IM to the max discrimination level and decide for yourselves wether it affects the depth. It may mean that at max disc only the strongest signals will break through. However some fairly deep coins still will register. because of the soil, atmospheric conditions, phase of the moon and so on. This seems to be a fairly common thing among all brands but it would appear Minelab has gotten around a majority of the problem. I have seen that my Xterra will hit deep even with a fair amount of discrimination. I do find that in AM I will find some deep coins but it is because I am now hearing the Disced out item and the nearby coin in a more rapid succession. I have not yet spent much time recovering ground previously hunted at IM 22. I will retrace some of my steps in a wide open pattern to see if I can determain how much I missed.

I have noticed the same thing with my numbers that Steve just posted, my ferrous numbers are running real high some of the times. I dug a wheat that was bouncing up to the 18 to 20 and the conductive was at 28. It did however register a couple of passes at 8/28 and 10/28, sounded good I have not had a coin yet register with a ferrous reading over 22.

I am also noticing that IM 22 i am hitting a pretty fair amount of wire and bent, rusty nails and rusty screws.

An interesting side note for me is how far a couple of nails may move the target signal of the coin I am after.

I should probably buy the book.

Jeff
 
I don't think IM has any effect on actual depth but don't hold me to that, I'm still learning the SE too. I recall Bryce recommending just enough IM to block out the low iron tones or "grunts" as he put it. This would, of course, vary depending on a site's trashiness and ground conditions. In Ferrous sounds I use very little IM and in conductive, just enough to keep the rumbling chatter at bay. It's the Minelab's ability to separate good targets in trashy sites that sets it apart from any of the other detectors I've used, which isn't a lot. I know for a fact that in my dad's yard (infested with square nails and iron junk) I swung over a merc dozens of times, in all directions with a different unit without even a hint that a coin was there but the SE picked it right out and that was only a week or so after I started using it.

I don't know if any of this helps but I'm sure some of the more experienced users will chime in.

HH:thumbup:Steve in PA
 
Every detector does what it does.... IDs metal. Your disc determines what you HEAR thru the headphones. After each hit on a target you get a reduction in coil sensitivity.... much like squeezing a sponge. Then comes recovery. The time it takes to recover is based on the operating system and your settings and coil size. If you are running hot with a large coil obviously the detector has to process MUCH MUCH more data and like a computer will slow down its response. On the Explorer wit a slower processor anyway its helps to reduce you sweep speed and push the coil along. Ive actually been in places you get feed back from the processor and you can hear it operating. Some people dont like the slow processing that the Explorers have. Mostly because they are used to fast machines. They dont realize for their filters to work properly on those machine they have to swing faster. Even thou the Exp. may be slow they are about the only machine ive used that is a motion required machine that you need little movement to make them operate properly. I find this to be an advantage in trashy areas. Anyone that every operated in trash with AM on knows how fast its operating and hates all the noise.

Dew
 
Iron mask set at -22..... this is a precise setting for me that I never vary from. 1 setting higher....and deep iron starts to mimick deep silver hits...hence some falsing. 1 setting lower and for me...the deep coin hits won't signal through the nulls. .

Now this being said...your "comfort zone" for being able to hear deep silver hits breaking through the nulls might be different than mine...so by all means experiment with the setting YOU like and see what happens.

Don't let anyone or their advice...including myself...keep you from trying combinations of settings to see how they work for you my friend.

I would also point out that I personally see absolutely no depth difference with what you are asking....only less sounds coming through the headphones...and again for me personally....the deep coin hits won't come through the nulls for me.
 
My reason for asking was this.. I have a park that using your settings you shared with me. I am hitting a ton Of Iron....... In fact so much so it's not fun to detect the area.
 
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The Exp. are really good machines to PICK thru trash with just because you can move them very very slowly. Add a small coil and you might improve your luck as well just because the foot print is smaller and you loose little if any depth. Watch your smartscreen if it isnt moving reduce your sensitivity a bit and move the gain to 10. Why 10.... because weak targets have the same strength as shallow ones. Lesser gain will modulate the sound but when you get that many tones you tend to hear the louder ones and miss the deep targets.

Dew
 
Thanks guys this helps

Jeff
 
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Hey Bryce, what would that equate to on the E-trac? And is that how you run your E-trac? Thanks.
 
I'm not sure exactly how it would compare with the etrac setting...but I bet in stock setting the Etrac is very close because I'm comfortable with it set up as follows.... and for me it acts very similar in iron.

Believe it or not...I hunt with the E-trac in the bone stock factory coin program with only four settings changes.

1) I drop the threshold from the preset 30...to just an audible hum.

2) I max the gain at 30.

3) I max the variability.

4) I switch to manual sensitivity of 26.

The reason I changed the mentioned settings is because I want to mimic as closely as I can...the sweet sound I hear over deep silver with my SE.

One thing you might want to do is edit out the top right black line on the smartscreen because the E-Trac won't hit a silver dollar if you don't.

Me personally...I leave that line IN because it makes the machine so stable.

To me...with it edited out...it is no more smooth than my SE is.

The mistake a lot of people make is to try and make the E-Trac into an explorer...and it is not.

It is an awesome machine...and while it is similar...it just isn't the same.

All I tried to accomplish with my settings changes on the E-Trac was to mimic the sound of my SE...and that's where it stops.
 
Thanks for tips Bryce. I also leave the upper right line in because of how smooth it runs. Now if I am hunting in the woods with very little trash I run my screen open down to 28 like andy does in his book. I also like to run my gain at 18 so the deeper targets are softer in the trash. And lastly I am probally one of the only guys with the E-trac who runs the 4 tone option. I guess it's all the years running CZ's. Anyways thanks for the info.
 
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