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nulling question?????

A

Anonymous

Guest
i also have an xs and at trashy sites the unit constantly nulls out & i go slow very slow.is there any way to cut through the nulling effect??would iron mask be the way to go??i usually run my sens pretty low (low teens)and can imagine all thats being missed with the nulling effect. i also own a garrett gti 1500 and do not have this problem. i see alot of you guys use iron mask would i be better at trashy areas to go -6 iron mask???i always run manual sens thanks for the help its appreciated Thanks Robert in wisc
 
the explorer nulls over anything that is disced out including iron... the less iron mask or disc the less nulling..Nulling really doesnt affect much unless a good target very cclose to something disc'ed out..... you need to hunt slowly in nulls.. the best thing is to run iron mask at least -10 or more.. its also the best way to listen to all targets and learn trash signals from good ones
 
Detect in iron mask and slowly back down to the point that you feel that you are getting to the good signals. Another thing you could do is set the maching at Ferrous metal so you here a wider range of low signals for iron and hunt in iron mask -16. Then only dig the high pitch signals.
 
After a year and half of using the XS without a Threshold I have been wondering if that has been a disadvantage to my type of hunting or not. I used Garrett's for many years and always hunted in the Silent mode (No Threshold) When I received my Explorer I tried to deal with a threshold but I was so used to none that I backed it down to just below audible threshold and that is how I have been hunting ever since. After rereading Andy Sabisch's book, I don't see where I am losing anything by hunting with no threshold. It appears that the only advantage to threshold is to let you know when you pass over an object that is discriminated out which might alert you to the center of an old campsite or homestead (numerous iron objects). Well, rather than listen to an annoying constant background hum for hours, I believe by hunting in as much iron mask(-10 to -16) that you can stand and high sensitivity that you accomplish the same result. Except now if the object you pass over is a good solid signal it might be a valuable relic that otherwise would have just been a null with using threshold. I don't know if I am in the minority or not on hunting with no threshold but unless I understand it incorrectly I really see no reason for me to hunt with one for my homestead type of hunting that I do. Comments???? Don in South Jersey
 
Well, I'm fairly new to the Explorer but lately I've been hunting trashy fire pit areas on the beach, which I imagine are one of the worst areas to hunt. Infact I just got back from one and got $3.00+. Some of those areas (real close to the cement fire pits) are nothing but a carpet of nails and I get that nulling effect.
So what I do to "cut through it" is:
Iron Mask to -16
Gain to 6
tone variability to 7
Ferrous sounds on
and recovery to fast
Now, you'll have alot of noise (low tones) to listen to but if you go slow enough, real slow, you'll hear some high tones peak through. It aint easy, but it's fun. I use the 7" coil and once again, in real bad iron laden areas I go real slow.
 
the main thing is it tells you to slow down went you get in iron or high mineralization.. with no threshold and too much iron mask you might go sweeping along way too fast, I suppose if your wide open you would hear the iron, but not the mineralized sites
 
Actually, I do slow down when I start picking up those iron signals, almost always the artifacts will be in the areas with the iron signals. That is why you go in -10 to -16 so you can pickup those nails and such, then you slow down. That method works great for finding "new" sites that otherwise show no outward appearance of habitation. My main concern was am I losing anything by not having a threshold and it appears I am not. I was just curious why so many hunt with a threshold when in reality they do not have to. Don
 
your not alone hunting with no threshold Don.... I've never thought it an advantage or disadvantage to hunt either way but I guess that depends on the type of detecting you do...... or is it just personal preference??
There are two reasons I hunt no thresold, one because on 7 it's too loud and on 6 it's silent, so I have it on 6. The second reason is it drives me crazy having the thresold go on off, on off all the time, especially if I'm park or school detecting and targeting a specific type of coin and none other; which I do sometimes......
 
Never tried with no threshold, I pretty much like to hear whats going on in the ground.. the threshold sound doesnt bother me much, at least only using one ear.. when I am in the woods hunting I generally have one earcup off so I can hear if anything or one sneaking up on me <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)"> I think without a threshold I would be forced to run -16 all the time so I could pick off that stray nail that might be on the outskirts of a home site while scouting the woods..while with the nulling I can stop and search around them to see if I stumbled into something.. But -16 would do the same thing.. One thing I heard before was that threshold volume was the minimum volume you would get on a deep target in disc mode, but dont think thats true with the explorer..
 
when I run iron mask, which isn't very often, and I dig the high pitch signals with ferrous tones it's almost always a nail or some other piece of junk. I run a custom discriminate program because I just can't stand digging down 8-10" in tree roots only to find a nail. I know all of you guys use iron mask but I just don't get it. If I new I wasn't going to be digging so much junk I would be right there with ya. Just too confusing for this newbie. Any suggestions?
 
Very good points. I find the Explorer threshold hum to not annoy. What you might lose without it is not knowing the unit is working and in disc. mode. Also, if certain spots lose threshold or null, sometimes intuition leads you to investigate further.
 
You might have missed my point. By operating in a very low iron mask of -10-16 you will get a signal indicating an iron target, thus causing you to investigate further if need be. If you want noise to indicate your detector is still working and LOL I don't know why you would think it is not, then up the sensitivity in Manual till you get some chatter. Again, why have a hum in your ears all the time if you don't need to. I know it is personal choice but some of the logic doesn't compute in this ole knoggin. HH <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=":)"> Don in South Jersey
 
With Ferrous tones you should not be getting a high pitch too often from iron. I am a believer in the high pitch alerting me to a target but if I don't get a high right crosshair signal that also indicates some depth to it and the ground is hard I would not dig that signal. I have to have a high pitch, crosshairs in the upper right to upper middle, before I will dig in an area that is difficult. Sometimes the crosshairs might not go to the upper right unless you keep trying different sweep angles. If you are doing all of this and getting iron, then your iron is generally different than my iron. Open for other suggestions. You could increase your variability in sounds, that might help. Don in South Jersey
 
I don't really know, but i am wondering if there are occasions when a good signal may be too deep (and weak) to trip an audio tone, but strong enough to alter or stop the threshold. Does anybody know?
I guess where I would be uncomfortable in silent search is something like a plowed field with hardly any metal in it, but some prospect for very old and deep stuff getting churned up. Covering a large area with few signals makes me very uncomfortable with no hum. Sometimes my headphones cable gets slightly pulled from the jack, and the end of hum alerts to me it.
 
Yes in Ferrious you will get a high tone on anything on the right side of the screen, so rusty bottle caps will along with rusted tin will too. Now if I get a high pitched and it is on the top part of the screen I will dig, but if it goes to the bottom right I know it is a rusty bottle cap and the center right is the tin cans, but if on the top 1/3 of the screen on the right side I will dig.
I find ferrios works excellent for me.
Rick
 
Patrick,
if you reference your digimeter & crosshairs when you hear a high pitch, a nail or iron would show a low #,when silver would be high pitched & a high #, like 28. (in ferrous sounds).
peter
 
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