Goldfield Mode At The Park

[mn90403]

Yesterday I went to a park where one of my kids play.  Over the years I've found several coins and pieces of jewelry in this park.  I've used the 800 and the Manticore there.  All of those times have been with field, park, terrain, beach low conductor, etc.  This hunt was with Goldfield and the M15.  My son didn't have a long time to play.

It became apparent very quickly that between the city removing the soil and someone having recently detected the sand at the park there wasn't much to be found.  There were a lot of targets but they were there because the discrimination on the other detector left them!  As you can see from the picture just about everything was trash, more specifically bobby pins.

Manticore Goldfield saw all of these and the little 14k Mexico pendant.  It registered a 24 which was near the nickel.

The lack of discrimination in the Goldfield mode makes it ideal for finding this micro jewelry which fell through the 1/4inch mesh of my scoop.  I now carry a plastic nugget scoop when I hunt the sand area of parks.

 

[mn90403]

I just got this email from Minelab.  It talks about the power of the Manticore.  It talks about finding only the good stuff!

 

What sets MANTICORE apart is its ability to unearth deeper targets while reducing the noise and clutter often found in highly mineralized or junk-filled soils. Its advanced discrimination features let you hear only the signals that matter, filtering out the scrap so you can focus on the good stuff.

MANTICORE Metal Detector: Power, Depth, and Precision - Blog

https://usa.minelab.com/blog/post/discover-what-lies-beneath-a-closer-look-at-the-manticore-detector1?utm_campaign=21241741-[usa] september&utm_medium=email&_hsenc=p2ANqtz-_3JYqMtX17DTkGwcDr8nro-oOvxESfiSJbwzm23y-K6lZGJVLKHznFjvnnMmldV7pYhsaKw6BXYnv4IK1F5_u8BqkHCA&_hsmi=378223815&utm_content=378223815&utm_source=hs_automation

Sometimes you want to find ALL THE STUFF!  Once it is in your pouch you can discriminate. 

Go Goldfield.

[Chase Goldman]

3 hours ago, mn90403 said:

Manticore Goldfield saw all of these and the little 14k Mexico pendant.  It registered a 24 which was near the nickel.

3 hours ago, mn90403 said:

The lack of discrimination in the Goldfield mode makes it ideal for finding this micro jewelry which fell through the 1/4inch mesh of my scoop.  I now carry a plastic nugget scoop when I hunt the sand area of parks.

Love that Guadeloupe Medal.  Great find amongst the other trash. 

However, you have me a little confused on this one M.  Discrimination on the Manticore in multi (regardless of Search Mode) only filters out ID's or ID ranges depending on the defaults or your customizations - it really functions like a notch filter as the iron discrimination is primarily performed by the ferrous limit profile which still exists even in Goldfield (default upper limit is 6, lower limit is 1).  While it is true that there are no discrimination/notches in Goldfield, it's ability to detect micro targets is primarily facilitated by it's high frequency profile and the enhance Prospecting audio theme, not it's disc pattern.  The All Terrain default search mode discrimination patterns typically top out at 4 or 5 with the lone exception of AT Trash Reject topping out at 12.  The Beach modes use a default disc pattern of "0" leaving 1 - 99 open which is also the same as GoldField (note that "0" disc will filter targets that ring up as "0" which could be micro gold bits or even some fine chains).  With these disc patterns your Guadeloupe medal would still be detected in ANY Manticore mode at 24 and probably visually sitting right on that center line.  Smaller, micro gold targets (such as earring studs or backs that might ring up less than 5 to 12), could conceivably get disc'd out in the AT modes but that is easily remedied by invoking the horseshoe to suppress disc and audible filtering of targets that exceed either of the upper or lower ferrous limit lines. 

Again, the key to enhanced micro target sensitivity in GoldField mode is mostly attributed to the higher frequency profile and Prospecting pitch audio which doesn't provide tone ID.  It doesn't hurt that there is no disc, too, which is essential for the prospector who wants to detect those small bits that ring up in the single digits.  Regarding the recovered trash (bobby pins, etc), even with "0" disc and no tone ID (i.e. Prospecting Pitch audio), those targets should still be easily identifiable by their trace shape on the 2-D display and, if you are NOT in horseshoe mode, would also be audibly filtered it their trace stayed above the upper default ferrous limit of 6.  I could be wrong because I don't know what those bobby pins looked like on your 2D display and whether you had the horseshoe invoked, but I think they should have been pretty obvious junk by the trace (off center smudge vice tight dot on the centerline), a ferrous tone (if the trace strayed into the ferrous limit zone) and an occasional Red or Underlined TID (also if the target trace crossed the Ferrous Limit boundary).  Perhaps you were digging them just to verify even though you recognized them as probable trash on the Manticore's 2D display (which, in my opinion is the true "power" or "super power" of the Manticore).

All I am saying is that Goldfield is a good choice for micro jewelry park hunting but it is mainly because of the high frequency profile and Prospector enhanced pitch audio not the disc pattern, and despite "0" disc, the 2D display should still greatly assist in not having to dig all that small mixed ferrous trash like those bobby undazzlers (but not bird shot or micro aluminum).  Would be great to see a screen shot of how those bobby pins traced out in Prospect mode. 

Thanks again for taking us along on your trip to the Park.

 

 

[mn90403]

Chase,

You provide details I can't even imagine.  I do get your point about the higher frequency and that may be the reason why the bobby pins were detected.  I actually have an adage that says I'm not going to find really good jewelry unless I find a lot of bobby pins. (That means lots of women have been around!)  That has a different 'truth' than my adage about finding quarters at the beach.  (When I find a patch of quarters (size and weight), I have a much better chance of finding rings!)

My main point was that there was very little metal left to find.  The Goldfield program kept me concentrating.  Whoever detected the park before me 'missed' these targets.  I don't ever use the horseshoe.  I do look at the screen and after a bit I knew I was probably digging another wire.  I don't mind clearing out some of those sharp wires on a playground.

I find some bobby pins on the beach when I'm in beach modes but not as many as I did in this park.  I prefer using Prospecting Audio in all of the modes.  My quandry is why were all of these bobby pins still there and other stuff missing.  The only answer would be cherry picking/discrimination.

[Chase Goldman]

18 minutes ago, mn90403 said:

I actually have an adage that says I'm not going to find really good jewelry unless I find a lot of bobby pins. (That means lots of women have been around!)  That has a different 'truth' than my adage about finding quarters at the beach.  (When I find a patch of quarters (size and weight), I have a much better chance of finding rings!)

I agree with those adages.  One of the keys to successful digging is thinking about who frequents your site and how and where they lose things and how finding things like sinkers and quarters tells you that you should be able to find rings if they are there.  Just as finding square nails in a farm field is a good indicator of human habitation (that's why I don't disc iron when I am searching a field for hot spots) when there are no other visual signs of former structures.

 

18 minutes ago, mn90403 said:

I don't ever use the horseshoe. 

If you truly want to be in a mode where you are hearing and seeing all targets in a non-beach site, then you should experiment with it.  Ferrous target audio for targets that fall within the ferrous limit regions will not necessary provide a TID or tone, otherwise, and you could be missing out.

Finally, I should mention perseverance and patience.  Whatever the case, even when you were digging those bobby pins and the other trash, you never made the assumption that who ever was there before you cherry picked every keeper.  The nickel was a clue that the cherry picker may have only been going after high conductors.  That is the right attitude to have and you were rewarded.  Congrats.

[mn90403]

2 hours ago, Chase Goldman said:

you never made the assumption that who ever was there before you cherry picked every keeper.

That nickel was probably a drop after they detected.  The shovel was in a location they missed.  I didn't see dig holes.  I was digging into some hard dirt for some of the bobby pins.

The parks do get replenished.  I'm undecided if the Guadeloupe Medal was missed possibly because of its size or was a recent drop also.  I don't think it was there long because it is clean.  I looked around for a delicate little chain that would have been worn by the kid but it was not to be found.

[geof_junk]

10 hours ago, mn90403 said:

I actually have an adage that says I'm not going to find really good jewelry unless I find a lot of bobby pins. (That means lots of women have been around!) 

That is one I did not think off. However I'm a gold prospector and discrimination is normally a NO NO for me.

[locator]

39 minutes ago, geof_junk said:

That is one I did not think off. However I'm a gold prospector and discrimination is normally a NO NO for me.

👍😁 Less is more. And the best discrimination is done by your brain. 😉🤭 But what do I know...🥳✨

Well done, @mn90403.

[Jeff McClendon]

15 hours ago, mn90403 said:

I don't ever use the horseshoe. 

Wow, I guess I am in the minority since I see this often here in the Denver area too. Most hunters don't detect with all targets accepted here either. 

Personally, I always detect (and I mean always) with the horseshoe button activated so that every target that can possibly be detected will give an audio response of some kind. I do sometimes switch back and forth over a target between horseshoe ON and horseshoe OFF to see the differences. Usually this is over deeper targets where I am trying to make a dig/no dig decision and there are lots of iron responses. With the horseshoe ON I actually get more complete information since the non-ferrous tones are not being clipped or distorted as much as they are when the accompanying ferrous tones are silenced due to horseshoe OFF. I do know some really good hunters here that hunt that way and do really well however.

Using Prospecting audio all the time is very interesting too. I just use it for gold prospecting but I can definitely see good reasons to use it for beach detecting near or in the surf where its VCO audio could really help hear targets better.

Great medallion and I really enjoyed your write-up.

Manticore will hit the medallion's jump ring without the medallion in Goldfield with the horseshoe ON if it isn't too deep.