Threshold and The Nokta Legend

[Digging Prayers]

I have been experimenting with using the threshold on the legend coin shooting. I was using a program I found on youtube (I'll post below) and set it up the same, EXCEPT I turn the threshold off. I thought I was doing good with it like that. Come to find out, I believe I was making that program usless.
I turn the threshold off because I thought it would bug me.

Today I turned it on and tried it. Wow... It really seems to make those hight tone targets pop and scream at you, "here I am." The background hum does not bug me at all and it gave me great results.

I went over a section of property I thought I had worked over pretty well. I feel like I was hitting stuff I should have caught the first time.
In about 45 minutes I pulled three quarters, five dimes and four trashcan zink pennys. How did I miss them? Now a believer in threshold.

If anyone is experienced with using threshold on the legend, could you point me in a good directions to school me or give advice/instructions? I feel like a whole new world opened up to me.

P.S. I use the BT headphones that came with the legend and an LG24 coil. I also noticed the unit was not as chattery where I didn't have to ground balance and do the frequency tune as much. Hardly any interference at all, even when the pinpointer was close.

Finds and video posted bellow.

 

[Digging Prayers]

Not sure if I'm doing it right but as I said, it makes those higher tones pop out and also causes me to investigate closer the chirpy not consistent tone. To me, the chirpy not consistent softer high tone makes me think deeper coin near Iron. Correct?

Secondly, when I hear the hum go silent but no tone, does that also indicate a possible target I should investigate?

Thanks, I had to add the after thoughts.

 

[KOB]

Not sure if I'm doing it right but as I said, it makes those higher tones pop out and also causes me to investigate closer the chirpy not consistent tone. To me, the chirpy not consistent softer high tone makes me think deeper coin near Iron. Correct?

Secondly, when I hear the hum go silent but no tone, does that also indicate a possible target I should investigate?

Thanks, I had to add the after thoughts.

Threshold on any machine should be smooth. Any deviant or "break" in the threshold needs to be investigated thoroughly. It tells me a target is below.

 

[Cherry Picker]

In my experience, the threshold feature has changed. Now it seems to be more just a tone to compare signals to. The old threshold I used to know, seemed to raise & lower the ground noise level to the level you could hear so that even the slightest change in the threshold meant there was something there.

 

[hoser]

I do use threshold, but I keep it just to where I can barely hear it. I can still hear the hum, and when it drops off I PP and dig.

 

[Digging Prayers]

I do use threshold, but I keep it just to where I can barely hear it. I can still hear the hum, and when it drops off I PP and dig.

Yes sir, I lowered the hum volume.
Reading through his comment section, the way he had it set up was without headphones. When headphones are used, lower to a more comfortable level for you.

He also notches out 55-60 to help eliminate iron wrap around. He also recommended notching out 0-10. He also noted, this is for iron infested sites and the focus is on coins. You can get gold jewelry but you have to pay attention even to the lower tones. You would probably miss some of the smaller stuff but again, it is set up mainly for trashy iron infested sites when looking for coins.

I'm going to try and go out and do it again today but I have trim to paint first at the church.

 

[hoser]

Yes sir, I lowered the hum volume.
Reading through his comment section, the way he had it set up was without headphones. When headphones are used, lower to a more comfortable level for you.

Ok keep in mind I don't have a Legend. YET!. Just the E-Trac. But I believe threshold is basically the same on most if not all detectors that has it. There are times I will turn it down to where I can't hear it if I'm in a very trashy spot.

 

[jmaclen]

Setting up a Legend like the person suggested in the video is one way to approach thick iron trash. 2 tone VCO Pitch audio in one of the Legend's Park or Field modes, some iron and iron wrap around notching and using the threshold tone as a reference threshold to react on those rejected target IDs is a good plan especially if you would rather not hear a million iron responses even with the iron volume turned way down.

Since the threshold for the Legend in Park and Field modes is just a reference threshold, I am not sure if it will actually "boost" weaker responses.

The Legend's Prospecting mode does have a sort of hybrid true or live threshold. The Legend's Prospecting mode's only tone option is 1 tone VCO. Running that mode with any target IDs rejected and using a threshold tone, those rejected target IDs do not change the threshold like they do in the other modes. That threshold tone is actually an audio booster for weaker targets if it's setup up right. Even running the Prospecting mode's threshold on level 3 or 4 when the threshold tone isn't audible, will slightly raise the loudness and change the fullness of the small target audio response.

If that kind of audio boost is happening using the threshold tone in Park or Field modes with Pitch audio, I haven't heard it yet.

 

[Cherry Picker]

Ok keep in mind I don't have a Legend. YET!. Just the E-Trac. But I believe threshold is basically the same on most if not all detectors that has it. There are times I will turn it down to where I can't hear it if I'm in a very trashy spot.

I don't know. I've tried it on most that had it like the D2, Legend, and the NOX 800 and it just doesn't react the same. Or so it seems. Seems to me a recent definition I read about what the threshold does. Like it gives you a tone that makes it easier to hear slight/deep tones. That is all good, but it seems to me the threshold was like a volume control for ground noise. You set it to where you can just begin to hear it and very deep faint signals can be heard. Maybe that is what it still does, but it doesn't say anything about ground noise, but it doesn't react like I remember. Could just be me getting old LOL.

 

[Digging Prayers]

I'm not sure if it boosts it either but it sure pops. Low, low, low then ping. It catches your attention

 

[RobNC]

Hmm. Interesting thread about threshold. I was always under the impression that when threshold hum blanked or disappeared you were over junk, not treasure. Perhaps I've had it backwards all this time.

 

[jmaclen]

Hmm. Interesting thread about threshold. I was always under the impression that when threshold hum blanked or disappeared you were over junk, not treasure. Perhaps I've had it backwards all this time.

With the Legend’s single digit notching, its threshold blanks on whatever is notched out according to your discrimination pattern in Park or Field mode. Doesn’t matter if it’s treasure or trash.

 

[RobNC]

With the Legend’s single digit notching, its threshold blanks on whatever is notched out according to your discrimination pattern in Park or Field mode. Doesn’t matter if it’s treasure or trash.

Just for info sake, I do consider you to be an authority on the Legend. And that is not a crack- it's truth. Thank you for being here fella.

So in my example I have 0-10 notched out on the Legend. And those are the only ones I have notched out. So when I hear the threshold blank out/silent that would point to something in the 0-10 range under the coil.
I use threshold and do hear the blanking a lot when NOT in All Metal. But there have been very few times I've heard a high tone nearby. Today I was hearing machine gun hums in a spot. That must have been a heavy area of the 0-10's.
Thanks for shining a light on things. And thanks to the Original Poster. Threshold is one of those things that manuals don't often describe in great detail and how it can be useful. I've always ran it and always heard the blanking and considered it to be junk due to the segments I chose not to accept.

 

[Digging Prayers]

With the Legend’s single digit notching, its threshold blanks on whatever is notched out according to your discrimination pattern in Park or Field mode. Doesn’t matter if it’s treasure or trash.

Hmm, im wanting to understand this.

Are you saying, for stricktly a hypothetical example, that if I l only notched out quarters at 50/51, then when I went over a 50/51 target, the hum would drop out? Gonna have to go get the legend out of the truck and investigate.

 

[Digging Prayers]

Lol Rob, we posted the same question. You beat me to the submit button by a hair.

I started this thread to glean from this vast field of knowledge. I wanted it to help me learn my legend and maybe open up a better understand on this subject for all who would be interested.

 

[jmaclen]

Hmm, im wanting to understand this.

Are you saying, for stricktly a hypothetical example, that if I l only notched out quarters at 50/51, then when I went over a 50/51 target, the hum would drop out? Gonna have to go get the legend of of the truck and investigate.

Yep.

 

[jmaclen]

duplicate post, sorry.

 

[jmaclen]

Just for info sake, I do consider you to be an authority on the Legend. And that is not a crack- it's truth. Thank you for being here fella.

So in my example I have 0-10 notched out on the Legend. And those are the only ones I have notched out. So when I hear the threshold blank out/silent that would point to something in the 0-10 range under the coil.
I use threshold and do hear the blanking a lot when NOT in All Metal. But there have been very few times I've heard a high tone nearby. Today I was hearing machine gun hums in a spot. That must have been a heavy area of the 0-10's.
Thanks for shining a light on things. And thanks to the Original Poster. Threshold is one of those things that manuals don't often describe in great detail and how it can be useful. I've always ran it and always heard the blanking and considered it to be junk due to the segments I chose not to accept.

I just use the Legend a lot both with and without the two different thresholds. Otherwise I would be just like everybody else………scratching my head because the Legend manual’s section on threshold is a jumbled up mess.

The scenario you related could have been iron range targets blanking the threshold and those same iron range targets falsing almost simultaneously in the non-ferrous range. There could have been a real non-ferrous target nearby too as another possibility.

 

[oldkoot]

Here is the Thing with the Threshold in the Legend, and only @jmaclen I believe understands the thresholds in the Legend

there are two different types of thresholds being utilized in the Legend
in Park,Field and beach modes the Legend utilizes what is called a reference threshold, that reference threshold is only good if you have discriminated out TID (Target IDs) and the only thing that reference threshold does is to alert you that you have just swung the coil over a target that you have notched out (Discriminated out), that reference threshold does nothing to help with depth or enhance a target response or anything else, if you run the Legend in A (All Metal) that reference threshold is pointless it actually does nothing except create pointless noise in the background

The Gold mode utilizes what is known as a live or true threshold, and in fact can seem like it helps with deeper targets and make you think the Legend is achieving greater depth, by alerting you that you have swung over a target that needs to be investigated, the threshold in gold mode is working constantly simply because the gold mode is a threshold based mode and why the gold mode has no tone adjustments or anything else that can affect the threshold in gold mode, you can set the threshold as high as the max setting and the pitch of the threshold only in gold mode

anyone that is telling you they are gaining something with that threshold in park,field and beach is pulling the wool over your eyes because again all that reference threshold does is to alert you that you have just swung your coil over a target that has been notched out on the Target IDs, plain and simple and if you run in all metal that reference threshold in park,field and beach modes is pretty much useless background noise.

why run with something discriminated if you want to hear it, run in all metal mode and you will always hear everything.

 

[oldkoot]

here is a Video by Liam (History Revisited) on the differences in the thresholds that the Legend utilizes