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Sensitivity Survey

A

Anonymous

Guest
Since this seems to be an ongoing debate, post what settings you use and manual or auto and why you think its the best mode to run in.. I will post my feelings later under this post....
 
Manual. And because it is manual, the sensativity settings vary, though 24 or so is typical.
I use manual because I don't completely trust auto mode. The machine is a lot noisier in manual and I worry that some of the smaller but repeatable sounds just get filtered out in auto. Auto also does not work the way that it is described in Minelab's documentation, which pretty much cinches my lack of trust in this mode.
Tim
 
Where I live its is high iron so I use manual only and the settings are 16 to 23.
 
Lots of variables here such as: What coil am I using? What type of soil am I in? How much moisture is in the soil? How much trash am I hunting in? Is there any electrical interefernce nearby? But normally I try to go as high as I can in manual without getting any falsing. If the area requires much resetting due to changing conditions and the coins are not too deep then I will switch to auto mode. I like manual because I know that what the sense is set at so I can get a feel for what everything sounds like after digging a few targets. The rest of my settings usually stay pretty consistent. Recovery=Fast because I am usually in trashy parks, Gain=7 because I like to hear the deep ones but I like a little volume separation between surface coins and ones over 5 inches deep, Audio=Normal for no reason other than I am used to it, Volume=10 because my Grey Ghosts have a volume control on them, Variablity=10 as I like to hear as much separation of tones in trash as possible, Threshhold=6 as this is usually silent for me so I can hear the faint blip of a deep coin, Smart Screen= nails and crowncaps rejected and everything else accepted as this eliminates 90% of the trash item that I normally encounter yet allows me to hear coins near trash objects pretty well. Of course all of this is subject to change due to changing conditions, frustration, boredom, hunches or posts I read here the night before.
 
Jim,
I always use manual sensitivity for two reasons:
1. Because you do.
2. Because manual gives better depth in air tests.
I simply set it as high as I can without falsing, which is generally 21-30.
I set the Gain at 7, sounds to normal, and variability to 10.
As far as recovery mode, I change it often. I use deep only, fast only, and deep-fast combined. If I had to use just one, it would probably be deep only, as I feel slowing down my swing speed still allows me to get good target seperation.
I hunt with the digital screen. I know I'm a rare breed here, but the sound is the most important anyway. A repeating good sound that registers half way down or more on the depth meter. That's what I'm looking for!
Doug
 
Run both manual and semi auto depending on conditions.
Try to run between 20-28 in manual and if it get too eradic I will go to auto for a while untill I get to a differnt area. I have even had some areas where auto wouldnt work and manual was smoother running, so I think there is no real setting that will work every time. Just have to set it to the condition a person is in.
 
Iron Mask -8, Gain 7 for Sunray 8 incher, 6 for stock coil. Audio-normal, Variability 10. Threshold just high enough to get a threshold. Manual sensitivity as high as I can set it and still be somewhat stable....usually 19-28, depending on area and coil being used.
 
I run manual 21-28. I just can't figure out what auto would be doing when the coil is not parallel to the ground as when I'm digging.
 
I usually use manual. Setting at 20 to 28 depending on how much falsing I'm getting. I worry that auto may set my sensitivity lower than I would like. I've done some testing and in order to get the same threshold as in auto, I have to set manual as low as 18, where I'm running at 22 - 24 manual.
 
I start at 22 manual. I still believe too much sensitivity is like that high beams in the fog deal. I'll gradually move it up though if I feel the need to.
 
It really depends on the situation and the location. I noise cancel at 20 manual, then run up to 32 and hit auto. IM -8 to -12, normal audio,min threshold,deep mode,varaibility 10, volume 10,gain 5-6 w/stock coil and 7 with SR8. reject nails and crowncaps only. Slow sweep speed listen for the fringe hits that barely respond. The thunk don't bother me now that I know what it is. <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)">
HH BiLL IL
 
Manual 25 or so.. I run silent most of the time, so I don't mind a little threshold breakup. I go real slow.. Iron mask -8 gain 7 If it repeats I dig it.
 
running lower iron mask in those nulls.. at least -12.. you will get more iron false, but it will lock onto coins much easier in that iron
 
what does the thunk mean? i've heard it and assume its junk.
 
i run in manual and set the sensitivity to produce a smooth threshold sound. sometimes i run as high as 28, sometimes as low as 14. just depends on conditions. because i am shooting mostly parks and private home lawns, its hard for me to tell if i lose any depth at the lower setting. but believe me, just because i rarely post any of the goodies i find, i still find plenty! i have hit seated at 9-10 inches with the sens at only 14. this is with the stock 10.5" coil. using the sunray 8", i can crank the sensitivity higher on the same ground than i can with the stock coil.
 
What is everyones silver count/sens setting is?I know that really don't say much,but everyone I know uses Auto and has tons of silver for the year.Examples,
Golddigger Auto 32=391+ silvers(haven't heard from him in a while,He probably has over 400 now)
BiLL IL Auto 32=150+ silvers(If I remember correctly that is about what he had)
Me 32 Auto=around a 130 silvers(I haven't counted them yet,I will in January)
I want to say Big Mike uses Auto,but am not 100% sure on that,he has 250 silvers.
Most all were hunted out parks,and there were reals found and bust coins and tons of seateds.
Hmmm,I can't think of anyone else that uses 32 Auto,But I was sure there was.
Anyway,This probably does not mean anything,other than IMO,32 Auto does not miss that much.I still am under the impression that a stable detector that runs the best sens for that area will go deeper than using too much sens.On the other hand though,I never have used any manual sens below 20 for very long,if 14 will find 9" deep coins,then maybe I will try manual sens more.I will try to run manual more this coming year and see what happens.
I still think Auto 32 is much better for a new user to start with and learn their Explorer before they attempt to figure out what sens setting gives them the best depth in the area they are hunting at the time.They already have enough info to try and grasp without the added confusion of trying to run too much sens and not having a stable detector to LISTEN to.
 
I have found it to be stuff ast the edge of detection depth, and the auto sens trying to bring back threshold makes the thump sound.. next time you get iyt switch to manual sens see if you get a clear reading
 
Sens manual 24-30, 167 silvers, 150+ IH's, from nothing but pounded parks Aug-Dec.
If we are looking for a single best setup forget it, its not going to happen in my opinion.
For a while now when I have found a signal, I have been testing that signal with both my normal high sens setting, a lower sens settings, a lower gain setting, and semi-auto. This is the only valid test in my opinion, same signal, same ground, same day.
Semi-auto...I don't trust it at all, I have seen too many signals vanish altogether or become extremely iffy. Even good signals degrade to some degree. They are not robust if that makes sense. In your area this may not be a problem, semi-auto may be the ideal setup but come to my parks and you will miss targets running 32-auto.
Can the sens be too high? Yes for thick green coins, yes and no for silver. The higher the sens on the green ones the more they try to sound like iron, again this may not be true in your area. Back off the sens and the higher coin sounds return. Silver on the other hand just seems to sound better the higher the sens goes.
But wait, with the sens cranked up high if you are getting a fair amount of faint high falses you will walk right by those faint silver signals, you just can't pick them out from the chatter. On the other hand I have tested silver signals that were iffy at sens 28, that were barely a bleep at 24, and gone altogether at 22.
Gain is another tricky one, I love 7 but if I'm getting too many high faint falses I'll miss some faint silver. I have been throttling back to 6 of late with better results but still run 7 when conditions allow, even 8.
I'm coming to the conclusion that if you really want to extract ALL the good targets, you need to pound it 2-3 times with different setups. Even different sized coils.
 
Jim is right about the thunk sound. You are at the very fringe of the detection depth and the detector is resetting. A quote from "Golddigger" "I Love to hear the Thunk, cause it is a Deeeeep Goodie 90% of the time". <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)">and ya know ole JW is usually right. <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)"> He has the Silver Count to prove it. <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)">
HH BiLL IL
 
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