I have some coins buried for about three years went over to the dimes 7 inches measured and my bit a bit lower do to settling.So i did my noise cancel and in smart screen i wanted to see how low i could turn sensitivity down and still hear dime using 8 inch ex coil which is a concentric coil not a dd coil.So i got down to number 8 before i could just get a signal.8 and up i could hear them clearly.So i brought the sensitivity back down to 8 from 16 and switch to manual power figuring i would hear them could not pick up a signal till i reached manual 15 did this a few times over and over.So do i under stand that the machine even set at 8 in auto will adjust the machine higher to pick up a signal or to adjust to the ground to its maximal potential power for the area .?I thought in manual it would have been able to pick up the coins at 8 sensitivity but had to bring it up to 15 to equal what i was getting in auto 8.Is this sound correct?Iam using explorer II.Thanks for help in a way it is nice to know that it actually works like they kind of state in auto mode.
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Question about auto and manual sensitvity did a test???????
- Thread starter ohio fred
- Start date
sgoss66
Well-known member
Hey Ohio Fred --
This is FASCINATING!
If your results are correct, which I am sure they are, then what it suggests to me is that "semi-auto" may NOT be limited by the number you set it at -- in other words, sensitivity of 8, semi-auto, may not actually be limited to "8" or lower...it might go higher, like you suggest -- since clearly, the machine was capable of running stable in your ground at something higher than "8" sensitivity.
I am going to try to get some answers for you on this, and I will check it out in my test garden, too.
Steve
This is FASCINATING!
If your results are correct, which I am sure they are, then what it suggests to me is that "semi-auto" may NOT be limited by the number you set it at -- in other words, sensitivity of 8, semi-auto, may not actually be limited to "8" or lower...it might go higher, like you suggest -- since clearly, the machine was capable of running stable in your ground at something higher than "8" sensitivity.
I am going to try to get some answers for you on this, and I will check it out in my test garden, too.
Steve
sgoss66
Well-known member
Fred --
I will try it in my test garden; I have also asked NASA Tom Dankowski about this, and with him being an engineer and detector designer, he may be able to provide some info (if he is familiar enough with Minelab machines to know what might be going on there...)
Steve
I will try it in my test garden; I have also asked NASA Tom Dankowski about this, and with him being an engineer and detector designer, he may be able to provide some info (if he is familiar enough with Minelab machines to know what might be going on there...)
Steve
[size=large]i believe you got it right ohio. manual locks it where you want and semi adjust from where you say you'd like it. once that level is found then of course you lock it there for that area. you may want to run a little hotter. get it up til your machine becomes unstable and back down til it stablizes.
HH[/size]
HH[/size]
teleman2525
New member
interesting finding i would of thought the results been the reverse manual setting being the stronger unless other factors involved could be auto adjusted better to ground conditions needing higher manual setting to over come still odd out come to my understanding of these settins look forward to more response,s and test thanks cool post eye opener
Would it be best say you lost a item just a couple hours ago and you want to search if you put it in low auto say 8 it is going to for this area reach 16 sensitivity,so i would be better to go manual and set it at say 8 because it will not adjust from that point.So say you throw a coin down and at manual 8 you just get a sound but if you put it in auto you not only get surface but probably surface to around 7 inches in this area.Does that sound about correct.Thanks for reply.
Something just dont sound right about this.
The manual for the Explorer Se states in semi auto sens mode page 22 the detector continuously monitors the environmental conditions and will
adjust the sens as close as possible to your specified level of sens. So if the detector is set at 8 sensitivity in semi auto according to the manual it will adjust as close as possible to that no. 8 setting and will not jump up to a higher sensitivity setting to hear a signal.
Im still a beginner and Im still in default settings which is semi auto 22. But I,ve seen several post from guys saying they get better depth in the manual settings. Bryce runs
his in semi auto 26 all the time but he also runs his gain at 10 to better hear the deeper coins and you know he does excellent in finding the deeper coins.
Theirs still alot for me to learn and this forum really helps me. HH Ohio Fred
The manual for the Explorer Se states in semi auto sens mode page 22 the detector continuously monitors the environmental conditions and willadjust the sens as close as possible to your specified level of sens. So if the detector is set at 8 sensitivity in semi auto according to the manual it will adjust as close as possible to that no. 8 setting and will not jump up to a higher sensitivity setting to hear a signal.
Im still a beginner and Im still in default settings which is semi auto 22. But I,ve seen several post from guys saying they get better depth in the manual settings. Bryce runs
his in semi auto 26 all the time but he also runs his gain at 10 to better hear the deeper coins and you know he does excellent in finding the deeper coins.
Theirs still alot for me to learn and this forum really helps me. HH Ohio Fred
Because the more i thought about it,i was thinking does the maker believe that in auto 8 you are probably to low on power and adjust it to factory setting on the mine lab explorer II of 16 ? So i don't have real deep target have to find one but at auto 16 does it stop going higher in adjustments and from there it try to adjust to that a higher number say 22 but anything below 16 it brings to that number because it is factory setting if the ground allows it?Just trying to see if my machine is running correct.So i guess what iam saying is after 16 the auto start to adjust to the numbers you set and manual will start at 1 and work were you set it. Thanks for your reply and thoughts,yes Bryce and the others on the forum do real well but don't come down here much to answer questions,i have found deep items but no sliver found nickles 64 and below but no dimes or quarters 65 and up.Still learning.
dewcon4414
Well-known member
Fred .... from the recent debates most of us agree there is a given point that semi auto works better than manual. But... on the high end manual takes over. At lower settings semi auto seems to adjust ABOVE what you set it at .... IF you are using manual as a gauge. This may be because of preset factory settings like salt, gain or just processing. We dont know if once in semi auto that its only your sensitivity thats being set. On the Etrac its a true auto and tends to work better.
Dew
Dew
Went hunting today and tried it again and yes it adjusted above what i set it at in auto area is hot small pea gravel rock coal ash iron found in some areas it was better to set manual 8 than auto 8 running ex coil 8 inch sef coil,area is such running any higher it would null constantly.Also tried ferrous ok but kind of like audio 1 lot of trash but you could hear the sound of a coin better.Another ? when most machine put power or signal out there is no adjustments that change that except for channel all adjustments you make are only for after the signal comes back to machine gain tone audio 1 ferrous is this true what we assume when we make these adjustments it is on the signal going into the ground in reality it is on the signal coming back after it goes through the machine and out to speaker or headphone,just asking if any one knows if this is correct.Thanks for your time and answers.
dewcon4414
Well-known member
Not exactly correct Fred.... your sensitivity does affect the sending coil as does the coil size which makes you process more dirt and noise. Then comes the processing which affects what you hear. Most machines do this... but some may be preset and not adjustable. A good way to show that is turn it up and put on a pair of steal toe shoes the more sensitivity the more the coil halo changes and you start picking up the shoes. It like turning a dimmer switch up.... the power grows. The processor is the down side to having tones, disc and TID screens. PIs (which use different waves) and pinpoint dont have these problems they just have to know something is there and you get one beep... no processing. I can even notice the depth difference in the explorers AM and pinpoint. Its just different since its a processed signal.