threshold setting

[bibelot]

I read in the manual to set the threshold in all metal until you hear a slight hum. I'm not using all metal mode, I am setting to discriminate mode which allows the threshold setting to max out without the same humming noise. Does the threshold knob not apply to the discriminate setting ?

 

[amberjack]

yes it does affect the disc mode, I am with Tesoro a stable detector finds more stuff turning the threshold up to high makes an unstable detector.

AJ

 

[REVIER]

Leaving the threshold at just a slight hum in all metal, like bees buzzing ever so slightly in your headphones, usually between the 12 and 1:00 area on the dial will enable you to use the pinpoint button and judge depth pretty well when you change over to disc.
Deeper targets will sound further away, shallow targets will sound closer and louder.

Turning the thresh higher is called supertuning and some crank it all the way but I found on my Vaquero the 3:00 area is more than sufficient when I feel like doing this, I am not sure going further than that will be much difference but some think it will.
Supertuning will disable your ability to pinpoint because every all coil movements of the coils will be loud and the same sound level and you won't be able to tell depth anymore because this will increase the volume on all targets both shallow and deep and they will also now sound very similar.
What it might be able to do for you is increase the sound on the real deep ones and let you hear some that you might not have been able to do before...or so some think.
I have found that this might all depend on your soil.
In really great low mineralized dirt you can probably here really deep targets without supertuning, in some very hot ground like mine in the south east supertuning might punch through the soil and get a bit deeper or at least I used to think that way.
I definitely can hear deeper targets around here supertuning because they are louder but if I listen closely I can probably hear them too without supertuning at least a little although not as loud.
I don't use my Vaq all the time nowadays and when I used to use it exclusively I supertuned all the time and found some great things.
When I do take it out now from time to time I don't do that much anymore, I use all metal more at certain sites, (I rarely did in the past), and when hunting in disc leave the thresh at the correct lower levels and use the pinpointer and figure out the depth that way which is more fun for me now.
I have several years more experience using the Vaq, a Compadre and other screen detectors now which might have affected my hunting choices and settings but every once in awhile on some deeper, iffy more broken signals I do thumb the thresh knob up to see if I can get a better read on those deeper signals supertuned but always turn it back down again.

Some supertune all the time, some never do some do it both ways like I do....to each their own.
Tesoros seem to find treasure pretty well no matter how you do it from my experiences.

 

[bibelot]

Thank you for taking the time to share your knowledge for I have much to learn. In my limited experience, when switching back to all metal on the toggle will pin point the target. It doesn't hard beep but goes into siren song mode, increasing in volume, the longer it is held over the target. and goes back to loud hum otherwise. Sometimes the hum goes quiet and then resume once past a spot. I used the compadre and it beeps a sharp brittle beep where the sabre went quiet ?Too much threshold can cause it to fall silent rather than sound out ? I dug one spot to see what was there and I found this small piece. At first I thought it was a spark plug tip but maybe not.

 

[steve1357]

Tesoros use a motion pinpointing unlike my Fishers which are no motion pinpointing if that helps. If you move the Tesoro over a target, it will sound off. But if you keep it over the target and be still, the tone will disappear unlike other detectors.

 

[bibelot]

Thanks Steve. I should send it in and have Tesoro go through it. What I was trying to say is once the sabre beeps a solid tone in disc mode on a target, rather than swing in a x pattern to determine the target, I can flip the toggle to all metal mode and pin point with it. It will sound off while setting motionless on the ground in this all metal mode with the threshold knob turned to max.The target always fall where the arrows inside the center coil are pointing as it should, it just allows the coil to be motionless while pinpointing which is not the norm as you explained. It does not beep however, it just sings like a siren once over the target. Maybe there is something wrong with it since I don't know the history of previous ownership. Other than pin pointing, the all metal mode doesn't work with the threshold set at max. It won't signal a beep per say. Now I have an idea on how its suppose to work I'll turn the threshold down. Thank you al for your help.

 

[BarberBill]

On the Tesoro models I'm familiar with, a properly set (slight hum) is supposed to give better response and accuracy in the discriminate mode. Just because you don't hear it in discriminate mode doesn't mean it has no effect on performance.
BB

 

[steve1357]

Thanks Steve. I should send it in and have Tesoro go through it. What I was trying to say is once the sabre beeps a solid tone in disc mode on a target, rather than swing in a x pattern to determine the target, I can flip the toggle to all metal mode and pin point with it. It will sound off while setting motionless on the ground in this all metal mode with the threshold knob turned to max.The target always fall where the arrows inside the center coil are pointing as it should, it just allows the coil to be motionless while pinpointing which is not the norm as you explained. It does not beep however, it just sings like a siren once over the target. Maybe there is something wrong with it since I don't know the history of previous ownership. Other than pin pointing, the all metal mode doesn't work with the threshold set at max. It won't signal a beep per say. Now I have an idea on how its suppose to work I'll turn the threshold down. Thank you al for your help.

If I run my Tesoros in discrimination mode with the threshold turned up, it will scream in all metal and pinpoint no matter what I do.

In all metal or pinpoint, try setting the threshold to where it is quiet, just before the hum starts. Then switch to discriminate mode. Find a target. When you switch to pinpoint or all metal, it should only sound off moving over the target.

"supertuning" renders all metal and pinpointing worthless because of the screaming due to threshold being set "wrong"

see if it works by the book before doing something not in the book

 

[Stoof-tabsallday]

The point of setting it to a small hum before is to give another dimension to the "one tone".
On deeper targets the beep will be quieter. Yet another hidden dimension to the one tone Tesoro.
The cool part is you can make a small mark (I use a sliver of a adhesive label) to make that spot and when you find something very quiet on you headphones or speakers you can crank that sucker up to isolate where it is, then return to the "optimal" threshold after that target.
For some reason it just performs better as far as the subtleties of the tesoro's one tone language with the slight hum. You will hear and learn round and square target changes in the tone and it's "roundness" and it's "punch" I like to call it. By turning up the threshold you lose a lot of that because or over -amplification of the signal.

So in essence, the hum set will let you learn the language, but if you find something deep you have a hankering to dig, crank it up to isolate the spot, then go back to normal for the next target hunt after the dig.

This is what I do, but choose what you wish. Just know the "Tesoro language" is gone with super tune unless you mean the difference between an lawnmower blade and a coin lol.
Good luck and happy hunting.

 

[Stoof-tabsallday]

Thank you for taking the time to share your knowledge for I have much to learn. In my limited experience, when switching back to all metal on the toggle will pin point the target. It doesn't hard beep but goes into siren song mode, increasing in volume, the longer it is held over the target. and goes back to loud hum otherwise. Sometimes the hum goes quiet and then resume once past a spot. I used the compadre and it beeps a sharp brittle beep where the sabre went quiet ?Too much threshold can cause it to fall silent rather than sound out ? I dug one spot to see what was there and I found this small piece. At first I thought it was a spark plug tip but maybe not.

Looks like a pellet from a pellet gun lol

 

[bibelot]

I just went out in the yard and set the threshold to a light hum on all metal as described. I set the disc on 3, sensitivity on 8 because it was too chirpy on max, scanned the yard, hit a penny 8 1/4" deep, good solid tone. I hit another object with good tone in disc and then switched it to all metal and it did not beep but went back to the siren song mode, put it back to disc and it beeped solidly like a coin tone. 2" down was a stainless steel transducer bracket.

 

[amberjack]

a stable detector is a deep detector, running on then over the edge hurts

cant say I am a fan of Tesoro's AM modes slow as a wet week and not sure why they even have it other than to GB I do not use it to pin point ever.

if you want a zip zip AM then a F19 or similar will do the trick.

I am sure those that use Tesoro's AM mode have gotten used to it but not for me sorry.

AJ

 

[steve1357]

I just went out in the yard and set the threshold to a light hum on all metal as described. I set the disc on 3, sensitivity on 8 because it was too chirpy on max, scanned the yard, hit a penny 8 1/4" deep, good solid tone. I hit another object with good tone in disc and then switched it to all metal and it did not beep but went back to the siren song mode, put it back to disc and it beeped solidly like a coin tone. 2" down was a stainless steel transducer bracket.

Hang in there!
I cant see what you're saying.

As I understand it:

You put it in all metal and set the threshold for a low or no hum.

You switched to disc and found a target.

You switched back to all metal and it gave you the siren song instead of the low/no threshold hum unless you passed over the target.

I must be missing something....

 

[bibelot]

I just went out in the yard and set the threshold to a light hum on all metal as described. I set the disc on 3, sensitivity on 8 because it was too chirpy on max, scanned the yard, hit a penny 8 1/4" deep, good solid tone. I hit another object with good tone in disc and then switched it to all metal and it did not beep but went back to the siren song mode, put it back to disc and it beeped solidly like a coin tone. 2" down was a stainless steel transducer bracket.

Hang in there!
I cant see what you're saying.

As I understand it:

You put it in all metal and set the threshold for a low or no hum.

You switched to disc and found a target.

You switched back to all metal and it gave you the siren song instead of the low/no threshold hum unless you passed over the target.

I must be missing something....

Your understanding it correctly except for that it does siren song instead of beep over target that hard beeps in disc mode. I've came to the conclusion that it is non ferrous metals that makes it go quiet when in super tuned mode while running on am mode on the toggle. Maybe the tuning is out of whack. I am finding coins with it where I've been with the compadre multiple times. Its really trashy dirt and I believe the majority of my new found coins were tipped up on end and I dismissed them for trash with the compadre . I was also able to detect under aluminum bleachers without a problem which is where this mornings rash of quarters came from. This sabre likes nickles, I found 7 where I know I swept the compadre through. Maybe my setting is too high trying to eliminate trash blips with the compadre ? I only dug 3 pull tabs out of 37 coins with the sabre. It is easier to distinguish between coins and trash bits with the sabre. Does this make sense ?

 

[amberjack]

sounds like you are getting out there having fun and learning your detectors that's the fun of it all , enjoy you are doing great !!

AJ

 

[bibelot]

I 'm just putting as much time in learning with them as I can. The sabre found a ring today, not many coins, quarters, a single dime and pennies. I think pennies can be found everywhere .It is fun, no matter how little the finds are. The longer I go without finding a gold ring, the closer I am to finding one.

 

[amberjack]

bibelot well done on the ring sure hope your theory on gold recovery is right as mine is going to be a honker i haven't gone this long digging iron up with no gold and its feels like i am digging a dry well but i know it happens like that for me then i get on a run of gold seems to be how it works for me.

but i am a believer keep digging it all the gold will come out.

good luck or should i say more energy to you

AJ

 

[steve1357]

I just went out in the yard and set the threshold to a light hum on all metal as described. I set the disc on 3, sensitivity on 8 because it was too chirpy on max, scanned the yard, hit a penny 8 1/4" deep, good solid tone. I hit another object with good tone in disc and then switched it to all metal and it did not beep but went back to the siren song mode, put it back to disc and it beeped solidly like a coin tone. 2" down was a stainless steel transducer bracket.

Hang in there!
I cant see what you're saying.

As I understand it:

You put it in all metal and set the threshold for a low or no hum.

You switched to disc and found a target.

You switched back to all metal and it gave you the siren song instead of the low/no threshold hum unless you passed over the target.

I must be missing something....

Your understanding it correctly except for that it does siren song instead of beep over target that hard beeps in disc mode. I've came to the conclusion that it is non ferrous metals that makes it go quiet when in super tuned mode while running on am mode on the toggle. Maybe the tuning is out of whack. I am finding coins with it where I've been with the compadre multiple times. Its really trashy dirt and I believe the majority of my new found coins were tipped up on end and I dismissed them for trash with the compadre . I was also able to detect under aluminum bleachers without a problem which is where this mornings rash of quarters came from. This sabre likes nickles, I found 7 where I know I swept the compadre through. Maybe my setting is too high trying to eliminate trash blips with the compadre ? I only dug 3 pull tabs out of 37 coins with the sabre. It is easier to distinguish between coins and trash bits with the sabre. Does this make sense ?

I think some call it a VCO. On your Compadre and others in discrimination mode, a detector beeps or doesn't beep once the circuitry analyzes the phase difference. In all metal, the discrimination circuitry is not even used. The phase difference is simply translated to a varying tone that changes amplitude tracking with how close a piece of metal is and what size it is. Some detectors this audio is a certain frequency that only changes amplitude. On other detectors, and as I understand it on the older more sought after Tesoros, this audio tone changes in frequency AND amplitude. Amplitude signifying distance/size and frequency signifying conductivity - silver, gold, iron....

Without hearing what you're hearing, I can't say if your detector is working properly or not in all metal.

 

[bibelot]

AJ, I'm a believer in digging everything,part of learning.I don't know the birth stones ,the ring was a good find,heavy.

Steve,I might send it in to tesoro,right now,work is at a all time slow, money is a scarce item.lol.I guess I am lost with the all metal on a toggle deal. The compadre one knob is about all one needs. I do think there is some validation on tone change,easier to determine depth,distinguish metals..... I like the sabre but am thankful for the compadre for getting me started in a positive direction.The mother's ring got my wife's attention to maybe she is going to go metal detecting with me next weekend.

 

[bibelot]

I think some call it a VCO. On your Compadre and others in discrimination mode, a detector beeps or doesn't beep once the circuitry analyzes the phase difference. In all metal, the discrimination circuitry is not even used. The phase difference is simply translated to a varying tone that changes amplitude tracking with how close a piece of metal is and what size it is. Some detectors this audio is a certain frequency that only changes amplitude. On other detectors, and as I understand it on the older more sought after Tesoros, this audio tone changes in frequency AND amplitude. Amplitude signifying distance/size and frequency signifying conductivity - silver, gold, iron....

Without hearing what you're hearing, I can't say if your detector is working properly or not in all metal.

I'm thinking the silver sabre II was the first creation of the no motion pin pointing before it was recognized as being able to do such a thing. The silver sabre II with the all metal/discriminate toggle switch will also allow you to thumb the disc knob while in all metal toggle mode to sort out target types providing the threshold knob is set at higher than normal threshold settings. The sabre is everything the compadre can do with the addition of a sensitivity control and no motion pinpointing, better target recognition while giving up pure silent search mode because of background chatter that transmits through while sweeping the coil in search. The constant chatter feedback leaves you to believe it is running hotter than the newer models but the fact of distingue target/depth identification leads you to believe otherwise. The compadre recognizes every target with the same near redundant authority which leaves you guessing or digging more often .