Threshold - at "0"

[WThesing]

I was given a tip by one that knows the Explorer II quite well.

Set threshold volume at zero (not audible)

The reason for this is that since the Explorer is a processor driven and not crystal driven detector, the old thought of a barely audible threshold goes out the window. According to this tip, the Explorer will still react to targets, and you will be able to hear anything that the threshold tone could obscure (faintest sounds). I haven't had the time to try this yet due to work, but was wondering if anyone else has tried this, and if it really gives you an extra edge when needed. I would think it might have some merit in iron mask -15 / -16.

 

[Mike Hillis]

I think it would be fine when running wide open and you don't care about null over rejected targets. I would want to leave it up until I had set my sensitivity and then turn it down.

HH

 

[Steve(MS)]

Here's my take on it, I have used inaudible(one click below audible) and audible and have been successful both ways. Having said that most of the time I have it set to inaudible, just my preference. I use audible when in field and woods hunting so that I am alerted that there is some rejected items that I have passed over. Today I was hunting and used both, in areas with lots of signals I opt for inaudible. I have not been able to prove to myself that audible is any deeper than inaudible so I think it is more or less the preference of the user. If one is using a wide open screen (-16), I see no advantage using threshold. With older one tone units it is best to have some threshold because it will be more sensitive but with the newer ones it is debatable. Maybe others can give an opinion here and see what they like.

 

[WThesing]

I also think that this setting would have its proper time & place. I am hunting a virgin 1710 historic farm. There is a load of trash in nails and copper shards from several roofing projects and replacement of wood fence with stone walls. I am hunting Iron Mask -14 around the farmhouse, and the nulls give me a mental picture of what is going on.

 

[Cody]

Use a very deep dime on edge as a test. When you can just detect the dime with the threshold set to normal decrease it down a notch at a time and see what happens. I think the idea is to provide the individual users with the best sensitivity to faint targets. A general statement in the Ops manual is to set the threshold to the point where the user just hears the audio.

That being said I have found locations where there are so many faint hits that are little bits of trash metals that it seems best to use a threshold just below sound or even further down from the threshold.

Overall I look for operation that I can live with when it comes to how much "noise" I can deal with. It is easy to have so much noise that good hits get lost in the noise. By noise I am talking about those scratchy sounds that are negative or positive that often are called matrix noise. A sound that changes very quickly is easily identified as a good targets based on how motions discriminators work. It is fundamental that ground minerals change slowly and the change is constant while target are abrupt changes. The problem is that is an ideal assumption but not true in the real world. Picking out the good abrupt faint changes from the ones that are caused by unwanted matrix noise it the problem.

 

[Kejser]

Right from the beginning i have threshold set to ZERO.
I have absolutely no problems and my finds are just getting better and better... as small as 2x2 mm silvercoin fraqs are found with ease, and i have a faint idea the the thresshold sound was "hiding" som of the very small signals before...

 

[Steve(MS)]

the whole point of the discussion as I was merely thinking about one click below threshold. I will try out the 0 threshold setting, since it will quiet the machine down a bit then that is a useful tool in some areas.

 

[hollywoodmax-vabeach]

it worked the best it has ever worked hit all targets and was firm on all, in the past with threshold up some, it would hesitate on all targets................meaning it would sound but change and sputter so to speak...............now lock on dead

i even jacked the gain up some and it worked o k, i was using gain at 5.

still checking Z E R O out some

THANKS FOR THE TIP WT

 

[NealNoIN]

n/t