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Tried something new with DP...it worked!
Posted by: REVIER
Date: March 02, 2017 09:05PM
Saw this great post I will copy and paste below from another forum.
Really interesting use of DP on an F75.
I had to try this so I went to the entrance of my local park where I have spent hours and hours.
There can't be anything good left here...or can there, this is the perfect laboratory to find out.

This technique calls for DP tones and listening for very short blips, much shorter than I have been digging.
He knocks out all the iron at a disc setting of 15, I opted to lower it down to 6 so I can hear most of the iron.
I can control the thresh on the F770 in disc, -1 on that, any higher and it got way noisier...at these settings it was relatively quiet.
I used the big DD coil, sense was at about 75 and I turned boost on and off checking deeper targets.
Didn't really need the boost, all targets came in clear, even the deeper ones.
This was in black soil but still had a lot of minerals as the GB numbers were still in the mid 60's.
Did not notice the dirt bars but most of the time they are pegged around here.
As always there was still lots of extra iron, I dug several really rusty nails experimenting, got fooled by one or two when the numbers didn't drop lower but most I did see the drop and I dug them just to see if they really were iron...and they were.
On the bigger coin, a 1918 Canadian large cent that was a huge surprise since I live in the deep south, this thing was a really, really quick tone but I noticed, then I went back and manipulated the coil around the area attempting to get some repeating high numbers from two directions and I was successful.
Depth reading says 7" which is the right area for older stuff around here so I opened a hole.
This thing was sitting just about at that 7" level, when a quarter sized disc came up out of the hole I was thrilled.
Not a silver quarter, maybe a token?
So crusted over I had to rub hard just to get any details but eventually I saw the king's image on one side and part of the word Canadian on the other.
Eventually I got the date and this 99 year old coin made me smile.

The war nickel was a little tougher because I got some quick high numbers there too, (every coin comes in high here if it is past 3" or so due to up averaging around all this iron), but I also had drops down lower too.
Also showed 7" on the depth reading.
This was not as repeating as the cent but I decided to see what it was anyway.
After opening a hole I dug down a few inches and an old screw on cap from some sort of bottle came out, this probably caused the jumping, after that a few inches down a little deeper out came he nickel.
Parts looked silver so I was thinking war nickel but my soil can tend to crust over and hang on to targets so this is as good as it gets until I tumble it cleaner.
I got a 1945 date, saw the big P so that was good enough.

Got another 1962 nickel later, also about 6", a few other non ferrous targets like shell casings that I was happy to dig plus as I mentioned got fooled a few times by rusty iron but I am new at this method so I will get better.
It worked extremely well, anything good I get out of this site is a huge victory,
Slow movements of the coil, listen for the good high tones or any tones that aren't iron even if they are super quick, check targets from two directions and look for repeatable behavior in DP tones.
In seems to unmask things pretty good in some pretty bad conditions.
Don't know if other tone settings are the same but those really short tones might only be really noticeable or more noticeable in DP.

A big thanks to markg for these settings.


-----------------------

markg

Re: Delta Pitch
February 25, 2017 06:27AM


A little background information before revealing what I’ve discovered about the Fisher F75. More than 10 years ago I started inquiring about some old locations I hunt. Most of the locations are old, shut down schools where coal was used as a heating source for decades. Before the EPA was birthed most people did whatever pleased them when it came to disposing of waste, regardless of what it was and these old school sites are no exception. The burnt coal waste was spread over many acres of school property which created some extremely harsh ground conditions. Grass and weeds find it hard to get a start and most areas are void of any vegetation. Most of the school grounds look like Martian landscapes with small BB size or smaller pieces of coal waste everywhere. This material attracts to a magnet with little effort and can reduce depth of all VLF detectors by well over half. In fact until recently maximum detection depth was actually 2-3”, any target deeper would give a solid iron audio report if any sound at all. After many years of hunting these areas all but completely unsuccessfully I finally purchase a White’s TDI SL.
It turned out the SL opened up these old sites and many nice coins and relics were unearthed, but not without many trials and numerous adjustments. Case in point: one particular area had been, in my opinion hunted out with many different VLF machines over a 10 year period and I was certain there were no good targets left. I had been hunting about 15 minutes and all the SL was giving were very short audio reports, which sounded more like chatter or EMI and not targets. This prompted me to increase the time delay to about 15 “which increases the time before a transmitted signal is analyzed” thinking the small pieces of coal waste were the short reports I was hearing. Continued hunting another 5 minutes and noticed the short audio chatter continued but not to the same magnitude. Stopping and increased the delay to around 17 and off I went hunting again. Suddenly I noticed the machine was running very quiet, to quiet. A minute or two later and a very loud low tone, which on the SL means a high conductor, I stopped and reduced the delay to 10 and found my definite answer. The coal waste was causing all the ground chatter and false audio reports. Increased the delay to 17 and recovered a wheat penny around 4” deep. Now to be honest I had to stop for a moment and think about what just happened. Decided to start over I returned to where I began hunting and discovered I had passed right over many good targets. After digging a few more wheat’s I decided to start checking these targets before digging and discovered if I decreased the delay most of these targets became the short sounding audio reports I had heard earlier. The PI was just the trick to discovering some nice coins deeper than 4” in these barren areas. I must add the SL is not the best choice to make if there is an over abundance of nails because of the very limited discrimination capabilities of this particular machine. As a final note I must admit this machine has opened up a lot of hunted out harsh ground sites. Now on to the next story, but this time with my Deus and the Fisher F75 at a different location.

While hunting one day at a different location I noticed a lot of broken/clipped audio reports from the XP Deus in a particular area, and of course remembering the experience with the PI machine, I started adjusting as many different settings as I could think of and finally found that the full tone mode (only changed the audio function) provided the best of audio signals, dug some and found they were, indeed, good targets. At that point I was well pleased with the Deus, and after discovering this I continued to dig many more good targets. After a good bit of time I decided to break out the F75 and hunt the same area hunted with the Deus. Amazing to find there were still many more targets in this area, all giving extremely short, more like chatter audio reports, I started experimenting with the different settings on the F75. Sensitivity up and down brought no change in the audio. Finally going to my old faithful 1F with discrimination of 15 and some, only a very small percentage of the audio signals began to smooth out, but not enough to prompt me to dig. Not happy with the results I decided to try each process and nothing changed the signals. Then remembering the only changed needed on the Deus to detect similar targets was to change to full tone, but the F75 doesn’t have that choice, well I was kind of wrong. Changed to dP tones and wow it did just as good as the Deus, in fact the audio was slightly better, more smooth, cleaner start and finish of the audio signal. Interesting to say the least, so I decided to change and go through each of the process and found the dp tones was the setting that was necessary to hunt this area. Interesting note, my understanding of dp is it only changes the audio, has nothing to do with depth, sensitivity and discrimination, but I believe there is more to dp.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 2 time(s). Last edit at 03/02/2017 09:16PM by REVIER.




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Re: Tried something new with DP...it worked!
Posted by: Jackpine Savage
Date: March 03, 2017 08:59AM
Good helpful report. I plan on trying this when the snow is gone here. Hopefully it will unlock some good targets in my hard hit areas.

Tom



Save the Concentrics


Minelab Advantage, G2, Omega 8500, X-Terra 705, F75 DST and a Fisher ID Edge

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Re: Tried something new with DP...it worked!
Posted by: dfmike
Date: March 03, 2017 12:43PM
That's a super find considering where you found it. Even for us detectorists north of the border they are not that common. That's King Georges V on the face. Nice report on the DP tones and what they can do.



Active detectors: Fisher F5 , Fisher F19 LTD, Nokta Fors CoRe, Makro pointer and way too many coils.
Previous detectors: Bounty Hunter Discovery, Fisher F44, Omega 8000 V6, Minelab X-Terra 705

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 04, 2017 05:55AM
And this method worked again!

In 3 different sites that I have hunted before I managed to find some old wheats I missed in previous hunts.
Could have been silver or even Indian heads just as easily.
I used the same F70, the same big coil, went slow as I did before using both all metal and monotone...but this time these were all easily noticed.
Something about the way these behaved using DP that let me pick them out easier but still not sure what exactly that is...all I know it worked.


2 wheats from a permission house lawn I have hit a lot, one from a curb strip area that has been scoured to death for over 50 years, 3 from the front lawn of a site where an old house used to sit, those were the oldest ones a 1917, 18 and 20.
The last wheat was found in that permission house after turning the disc up from 6 to 65 to isolate just the high tones...still worked.

Pretty cool...going to continue to use these settings for awhile.

Pretty cool...going to continue to use this for awhile.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.




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Re: Tried something new with DP...it worked!
Posted by: WV62
Date: March 04, 2017 07:43AM
Hay Revier,

Congrats on another break through,

I must have done something wrong, I have been working for just a test a single strip of ground in a sled run area. I started cleaning it with the F75 and a little coil, and then step up the coil size for another pass. I don't spend a lot of time here I just run the pass and move on.

I got it somewhat clean with disc at 60, so the above took several trips to get to that level of clean. Now on this trip I was going to try DP and I don't remember what coil I had on that day but I made a nice slow pass which took over an hour. Not a single coin, then I turned around for a quick pass using single tone and got 3 wheat pennies, 2 in one hole and then a single.

So at that point I was thinking DP never again.

I don't know why but the F75 does air test deeper when set in DP. Also if I understand the manual, when in DP the meter and the audio are tied together. What you her is what you see.

I went back to that same strip last week with another detector with a small coil and lowered the disc down to sound off on nickels. No coins but I did get a pouch full of pull tabs. I am not comparing these 2 detectors, that was what I had in my hand and was going to run it all day. I could have done the same thing with the F75 by just dropping the disc down and putting on one of my little coils.

So what do you think I could do to give that strip a good run using DP?

Ron in WV



Worked and lived in the Huntington West Virginia area all my life, retired 2010
US Air Force Vietnam Veteran (68-69 & 70-71)
Started getting into metal detecting around 1975

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 04, 2017 08:24AM
Quote
WV62
Hay Revier,

Congrats on another break through,

I must have done something wrong, I have been working for just a test a single strip of ground in a sled run area. I started cleaning it with the F75 and a little coil, and then step up the coil size for another pass. I don't spend a lot of time here I just run the pass and move on.

I got it somewhat clean with disc at 60, so the above took several trips to get to that level of clean. Now on this trip I was going to try DP and I don't remember what coil I had on that day but I made a nice slow pass which took over an hour. Not a single coin, then I turned around for a quick pass using single tone and got 3 wheat pennies, 2 in one hole and then a single.

So at that point I was thinking DP never again.

I don't know why but the F75 does air test deeper when set in DP. Also if I understand the manual, when in DP the meter and the audio are tied together. What you her is what you see.

I went back to that same strip last week with another detector with a small coil and lowered the disc down to sound off on nickels. No coins but I did get a pouch full of pull tabs. I am not comparing these 2 detectors, that was what I had in my hand and was going to run it all day. I could have done the same thing with the F75 by just dropping the disc down and putting on one of my little coils.

So what do you think I could do to give that strip a good run using DP?

Ron in WV

I can tell you this technique, in my bad dirt anyway, takes slow movements of the coil and noticing the high tones and those tones can be really quick and short.
Really short.
I have been doing this with the big DD coil, sometime I will switch back to the sniper and eventually the concentric and see if they make this even easier.
Once I get a high tone and numbers that stay high I go back and maneuver the coil around trying to get high numbers to repeat from two ways and there will be a range of numbers in my dirt, about 5-6 or so but no drops lower or to iron.
I did get fooled by a couple of old, shallow, steel, totally flattened and rusted pop tops but that is normal using any settings I have tried using a DD coil.
Luckily most other bottle caps jump way more up and down from the 60's to the 90's and identifiable for the most part.

Like everything this might take a bit of practice and for me some very uncomfortable really slow crawling of the coil along the ground but using this method twice now I have found masked targets in sites I have hit before and they were pretty obvious once I learned to notice them which did not take all that long.
This works on all targets also, not just the high tone stuff.
Again anything deep around here past 3" usually soars high into the 80's and 90's, even nickels and IH's so that helps on the coins but I found a few other non ferrous targets that were deeper and a few that were shallow and lower, also.
Shallow targets are usually a lot more stable with less jumping and more a normal range of numbers.


Still not sure on why I found these so easily when I missed them before, maybe something in the tone that is different than my usual monotone or all metal, multi tones around here tends to make everything a bit more jumpy and noisy than this DP setting for some reason....plus this DP is getting me gosh darned deep.
Checking targets using my regular settings I usually average from the 3-5" area or so, maybe a bit deeper on a few, but using this I am getting a lot more that after checking depth are showing 7" and a few others up to 8".
I might be crazy but it seems many more than usual although most of the targets I have found this way are usually about 4-6".

All I can say is try it, go slow, set your sense so it is quiet and you can tell when you get one of those short, quick real and repeating high tones and not a false one and go after it when you do.
On these I had my sense at about 75-80 but the thresh was lowered to -2 and -3 to make it quiet as possible and it still worked.
I bet even lower sense will still get me deep even here.
More than 10 times I have found coins this way in sites I missed them before and this time they were obvious dig me signals so something different is going on here...I will figure out what eventually but right now I am just enjoying the experience and smiling a lot.

Everything I do around here and most everything new I learn usually has something to do with unmasking....this seems like another good way to do it so I will continue.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 5 time(s). Last edit at 03/04/2017 08:39AM by REVIER.

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Re: Tried something new with DP...it worked!
Posted by: WV62
Date: March 04, 2017 09:47AM
Well you keep fine tuning this DP deal and we will follow along. I am sure some of us will be out there trying this as well, maybe one of us will come up with a few more rules for this DP game.

Thanks for sharing your experiences, it sure keeps us thinking.

Ron in WV



Worked and lived in the Huntington West Virginia area all my life, retired 2010
US Air Force Vietnam Veteran (68-69 & 70-71)
Started getting into metal detecting around 1975

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 05, 2017 07:08AM
Thanks Ron...just love to tweak and see what happens, much fun for me and a big part of the hobby I enjoy.

Yesterday I went to two different parks trying these new settings.
For the last 18 months I have been sticking close to home and hunting just a few closer parks over and over but that can get boring.
I have a new hunting buddy now and I am starting to range out a bit more so my volume of finds should increase and hopefully the quality will also.

This is my total for the two sites, nothing super old in the coin department but that lock is very interesting and my clad total was more normal like in the old days when I hunted way more parks on my hunts.



Notice that lock, way cool brass and heavy and I wonder how old it really is.

I used DP all day getting used to it, nothing much out of the ordinary but I did lower the sense down to between 30-40 when hunting around a super trashy picnic pavilion and like always it made my big DD coil think it was an ultra small sniper and it was easy to pick out targets and ID most targets in the trash.
On lower sense those DP tones get super sharp, precise and clear, remarkably so.

On a few of those really short quick high tone and number coins I did play with the settings a bit before I dug them attempting to find out why they seem more noticeable in DP.
I tried all metal, monotone and multi tone and the targets all showed up also as very quick signals.
One theory on why I might have missed those other targets using these other settings on previous hunts might be on all metal and monotone this entails listening for the solid tones while watching the screen close and these really masked targets might not have sounded much different than the falsing I get a lot hunting around iron so much plus those higher numbers flashed by so fast even my brain with all my practice doing this just could not comprehend or notice them when it happened.
Using multi tones I did get a high tone but again it was so quick and the numbers flashed by so fast that I might have dismissed them as falsing.
DP tones have a high tone on these coins too but it is a different kind of high tone than you get in multi tones.
It could be my brain is just wired to notice those high tones a bit more easily in DP than in multi tones so I went back to examine all those targets further and recovered them where I missed them before.
On all these targets my detector could see them and alert me to them using any of the tone choices but the interface I use seems like it has a lot to do with how I perceive what is happening.
Using DP I don't seem to need to watch the screen so close as I have to in all metal and monotone, 1F of 2F...I can just listen as I usually used to do using the F2 or in multi tones on the F70 and just look at the screen when a good tone piques my interest.
It appears using DP it is exactly as all others that use this choice describe it...It is all about the tones using this one and the screen info is secondary and to me still important but only after I get that good tone.

One signal shocked me yesterday, I was hunting an old curb strip near one of those parks in the neighborhood surrounding it and I got one of those extremely quick signals again without watching the screen.
I stopped and went back and moved the coil around the area and got the good tone and high numbers from both ways.
This was a super short and quick tone but I did notice it.
The depth reading said 6" so I went after it hoping for silver.
The first few inches were better black dirt but then I hit red clay and had to take chunks of that out of the hole as I tunneled down.
My Lesche was buried in the hole up to the bent plate part just below the handle which is at 6" and I still hadn't recovered the target.
I was about to give up thinking this might have been a bigger, deeper can but I stuck the Propointer in the hole and it tells me the target is still a bit deeper and small so not a can so I dug a bit more.
An inch or so down I finally pull out a coin...it is only a dirty quarter, 1965, but I was thrilled there was something that deep down there and more so that I noticed it.
Sense wasn't super high either, about 75, and thresh was at -2 or -3.

I believe DP does have some great depth associated with it, in my soil anyway, and is able to see pretty good through the red clay and all the mineralization and maybe peek around iron and trash.
Even in the parks with a lot more of the better black dirt going way deeper in some areas my GB readings were still at around 78 so that is something we just have to deal with around here.
Something about this DP stuff just works and helps me notice good targets better and ultimately and hopefully recover more.
These are just tools that give us information but it is what we are able to do with that information will determine the degrees of our success.
DP seems to be way full of useful information, or at least my ears, eyes and brain can process it fairly efficiently so I will still keep experimenting and see how far I can take this.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 3 time(s). Last edit at 03/05/2017 07:27AM by REVIER.


Re: Tried something new with DP...it worked!
Posted by: Goondock
Date: March 05, 2017 09:42AM
Some great info. I read about the dp tones on another forum and tried it for 5 to 10 minutes on my f75. I'm gonna have to give this a good long try and slow down next time.

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 06, 2017 08:19AM
And yet again DP surprised me!

Went to my local park yesterday for a few hours and picked up what you see in the pic below...a decent amount of clad and two bullets...one fired and smashed.
I know there is still clad around here but I hit several areas I have hunted more times than I can count before and managed to find this which is usually a lot more clad than I usually come home with so this was surprising.
Again something about this tone is just alerting me to targets a bit better...or so it seems.
I am totally bored with this park that I have been living at for the last 1.5 years but once in awhile something great still pops up and now with these settings it is fun to hunt here again if just to see how much more I can find in these scoured areas...experimenting and gathering new data is great fun for me even if I don't find much when I do it.
I also dug a lot more trash than usual but I always do that when learning something new, for awhile anyway until I can get more confident in behavior patterns.
The bulk of the trash was pop tops, this park is infested with them, and most all of them I suspected what they were, also some bigger can pieces but I dug them anyway even though those pop tops had some pretty jumpy behavior going from mid 60's up to the 80-90's and most that were a little more solid with a small range kinda like coins act around here changed numbers when I hit them from 90 degrees which coins won't do so a big clue there.
I will probably slow down the trash digging on future hunts now that confidence is rising.
The pop tops that did fool me were all the old steel types that were rusted and completely smashed flat because they acted exactly like good coin targets but those types always did no matter what settings I use or on either DD coil large or sniper.
Luckily, not a ton of these types out there compared to most others.

I am getting better at maneuvering that big coil because some nice things happened on this hunt.
One thing was I found if I can get the center of the coil directly over the target, the area with the little round mark imprinted on the coil, and make some really short quick side to side swipes i could get the numbers to stop jumping around more than I ever could before.
Thisis not normal here...unless a target is totally shallow like sitting on top of the ground or less than an inch deep I always get jumping in the numbers if only between 2-3.
Deeper at 2 and definitely at 3" or more I hunt by the tone and looking for a small tight range in the numbers that repeat as most trash usually jumps a lot more.
On this hunt on some targets I managed to get the numbers totally stable on a few and I mean a dead stop on one number that never wavered from two directions.
42 on a few beaver tail tabs, a 72 on a few copper cents, I have not seen this sort of stable behavior since I hunted in the much better soil back in Kansas.
My F2 usually gave me some pretty sold numbers on the shallow stuff even here but the F70 with all that greater amount of power just doesn't in this mineralized trash and iron infested soil.
What really surprised me was when I dug these really solid targets even though my depth reading was 3-4" I expected these to actually be much shallower...but they weren't.
They were at that at least 3 if not 4" on one or two which is unusual.
On some trash targets that were deeper at the 3-4" area...maybe even 5" on one or two I also got much more solid and way less jumping than usual.
Don't know why this is happening, could DP be somehow, someway more accurate at perception than the other tone choices or all metal...I haven't got a clue.
Not thrilled with trash coming in more solid than usual being the avid gold hunter that I am but this also seems to be getting me more good targets like coins at deeper levels and in severely masked situations so it is a trade off that I can deal with.
Dig a bit more trash in the off chance I can find more gold....those numbers work for me.
I still hope to come across some gold sometime soon, even here in my bad soil all gold I have found has been very solid and stable so far so I need more data...gold data which is not easy to come by since it is so rare.

One great thing happened that did shock and thrill me yesterday, I found a deep quarter.
This was in a very small area that I found gold at in the past and also an old wheat so I have spent a ton of time in this specific area looking for more good things.
I have used many coils, have gone over it from every angle and direction i can think of, I have hunted this area more times than I can count using all metal and all kinds of tone choices plus with other settings all up and down the range on the sense, thresh and disc.
It has been awhile since I have gotten any good signals here, no coins and all trash lately like pop tops, tabs of all kinds and foil.
Yesterday I found three coins here, one copper cent and one zincoln, neither particularly deep but two I hadn't noticed before and a quarter.
The signal on the quarter was exactly what I was looking for...
I got that pretty nice sounding high tone that alerted me when moving the coil slow around the area, then going back I moved the coil over the area trying to pin it down.
I used the pinpoint function to try to find the exact target location and to make sure there was no iron in the area throwing off falsing high tones.
Once I found the spot I used short quick swipes with the center of the coil and got numbers I look for here, a range of numbers that jumped between about 86-93 with no drops lower or to iron.
Remember Fishers up average all signal around iron and here there is much of that in the red clay soil, the better black soil and lots of extra garbage pieces all around and the deeper you get the higher the numbers go so those unusually high numbers are normal here on all deep coins...even IH's and nickels.
Turned to the side 90 degrees and did it again...same repeating tone, numbers and behavior.
Once more I used the pinpointer to get a good depth reading and saw 7" and then I opened a hole.
Digging every bit of 7"...might have even been a bit deeper to 8" but I forgot to measure it, there I found a dirty disc...a modern clad quarter from the early 70's.
Never had a clue this thing was there waiting for me despite all the time I spent in this small area.
I am pretty darn confident I got a coil over this spot before at least once but probably way more than that but this coin never showed up on my radar at all...not once in any way shape or form.
I forgot to change settings back to all metal or other tones before I dug the thing to compare and figure out why I missed this thing, sure wished I did but I got so excited I just bent down and dug it.
Next time I will try to control myself, that is the object of all this experimenting after all and that is to compare settings and behavior to gather useful data.
Still, this was surprising but still thrilling at the same time.

So still getting better with practice getting more solid and stable numbers as I practice, still noticing those higher tone targets I missed before or easily finding them now in newer sites I haven't been over.

If there is one thing I am not thrilled about in all this is the how the lower tones sound using this.
Not a deal breaker because this seems to be a great way to find all coins for me, silver jewelry too, but setting my disc on 6 I get a pretty full range of tones from low to high.
The high ones I notice very well, the zinc area isn't a problem and even the tabs aren't an issue but when you get down to the nickel area and lower into foil the tones change into a low growl that is extremely close to how iron sounds in my other tone choices like 2F and all of them from 3-4H.
For me I have so much iron here I just learned to tune out the low growls for the most part and using DP I have to make an effort to listen and notice these low tones and look at the screen if I get some solid ones to make sure they aren't iron.
Iron in this mode is even lower, almost a really low buzz so you know, but after years of ignoring this kind of low tone which is not actually iron in this mode I would hate to miss nickels or worse gold in those lower areas of foil and nickel which I have found is more possible than tabs.
I love my 3H and 4H for gold hunting, I have probably found enough gold in those H modes to pay for my rig and in all metal and the other tone choices i have no problems at all noticing any and all lower conductive targets but now I have to work for it a little more.
No big deal...I just have to retrain myself a bit to stay on my toes.
I do turn up the volume a bit more using DP also, it helps to notice those high tones and those lower nickel and foil tones seem unusually low in volume in DP or that could just be me and the way I hear things but I think this is all about frequency of the tones.
The high ones I notice easily more than in other tone choices butthe low ones are harder for me to notice because I have turned them out for so long.
A bit more volume and some practice should solve that...can't wait to find some gold and see how it behaves in DP because it has been way to long since I ran over some of that rare metal.

Wondering how all this will work using my other two coils, pretty well I would expect, but right now I am finding stuff with the big DD so that stays on for now.

Still liking this method and well on the way to loving it.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 4 time(s). Last edit at 03/06/2017 08:47AM by REVIER.




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Re: Tried something new with DP...it worked!
Posted by: WV62
Date: March 06, 2017 09:20AM
Not trying to change subjects, but I noticed you were talking about tones 3H and 4H for gold hunting. As soon as I can get out I will be working with DP again and see if I can get some better results with it this time.

But I haven't done real well with gold jewelry so I would for sure be interested in 3H and 4H settings.

Ron in WV



Worked and lived in the Huntington West Virginia area all my life, retired 2010
US Air Force Vietnam Veteran (68-69 & 70-71)
Started getting into metal detecting around 1975

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 06, 2017 12:36PM
Quote
WV62
Not trying to change subjects, but I noticed you were talking about tones 3H and 4H for gold hunting. As soon as I can get out I will be working with DP again and see if I can get some better results with it this time.

But I haven't done real well with gold jewelry so I would for sure be interested in 3H and 4H settings.

Ron in WV

After using the F2 for so long the first tone choice I used on the F70 was 4H because it was similar tothe F2...sorta.
I used that for a long time before eventually trying others.
On my 4th hunt with this thing and still not having a handle on this thing at all or all the extra power I came across this signal that had a quick high tone that stopped me.
I went back and moved the coil around the area and discovered there were 2 signals there, something that was making that high tone with numbers that jumped a bit between 30-33 and something else right next to it that were way off those nickel numbers.
I was not looking at the screen, the nickel high tone alerted this to me totally and it wasn't all that super solid either because of the close trash but enough that I stopped.
On the first 4 hunts I was amazed at how many nickels I found using 4H, I never had any issues finding nickels before but this amount was pretty amazing.
After digging this target I find it was a large 14k white and yellow gold man's ring a 6.2 grams that was a solid 31 out of the ground and away from that trash.
Worth $140 at today's melt, had to be somewhere in the $350 and up range even at jewelry discounters, way over $400 at regular stores and if I sold it as a ring right now I bet I could still get about $250 for it if I buffed out the dings and cleaned it up.
My whole rig cost me $400, paying for a little over 1/3rd of it at melt prices on my first week and fourth hunt with it was pretty good, I think.
It was that high nickel tone that did it and even today when quick brooming new parks looking for jewelry 3H or 4H is still my favorite because I can move fast without looking at the screen and still have confidence I will be alerted if I roll over nickel area gold.
I have found other nickel area gold using this option also...at least one but there might be another on top of that, I am old and my memory can be suspect at times.
I have said before the engineers were geniuses that came up with this changing nickel area targets to high tones thing...geniuses.

Not all gold comes in at nickel but many do and I just would hate to miss any of it so this option can be very helpful at times.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 4 time(s). Last edit at 03/06/2017 12:47PM by REVIER.




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Re: Tried something new with DP...it worked!
Posted by: WV62
Date: March 06, 2017 03:30PM
Dang Revier no magic there. LOL But you got a point, back in the old days I would run the disc under nickels and I did find more gold back then.

I need to figure out the number range on the meter for that nickel high tone. If you think about it that is a audio only preset notch.

Thanks,

Ron in WV



Worked and lived in the Huntington West Virginia area all my life, retired 2010
US Air Force Vietnam Veteran (68-69 & 70-71)
Started getting into metal detecting around 1975

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Re: Tried something new with DP...it worked!
Posted by: REVIER
Date: March 06, 2017 03:49PM
Just checked...on mine the nickel range goes from 25-35 so I assume similar on the F75.
I have found enough gold in my time to I believe covered most of the numbers in that range between the F2 and this one.
The F2 is usually only about one number off on targets compared between the two due to the frequency difference I assume.

On the F75 I know you can notch out half sections so if you did I guess no tone whatsoever on the notched out area but I would never do that.
Even though I am more interested in deeper, old coin hunting at the moment the burning desire gold hunter in me that still resides would what if me to death if I even attempted to disc out most any gold range.
Old habits die hard in this hobby it seems.

Below is most of the gold I have found most of them are marked with the area or VDI numbers from either the F2 or the F70.
There are 5 missing that range from foil to tabs.

Notice the nickel and foil area amounts...This is why I mentioned being bothered a little about the DP low tones in this range.
However I will adapt...I always do.



"What if doing the Hokey Pokey really IS what it's all about?”
F70, F2, Compadre, Mojave, Judge2 - 2017....Clad, 13 silver targets including a freaking Barber quarter, a beautiful walker and two V nickels...
Plus other cool stuff.



Edited 2 time(s). Last edit at 03/06/2017 04:01PM by REVIER.




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Re: Tried something new with DP...it worked!
Posted by: WV62
Date: March 06, 2017 07:51PM
For sure a nice display of jewelry, my gold finds don't come close to that.

My last gold ring was several years ago and I was running disc to except nickels. I was cleaning a ball field area and on the 3 day, out came a man's gold wedding band, I sold it for $93.

Ron in WV



Worked and lived in the Huntington West Virginia area all my life, retired 2010
US Air Force Vietnam Veteran (68-69 & 70-71)
Started getting into metal detecting around 1975

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