Need advice on my current quest

[Tagamet]

While hunting at a local soccer field, getting familiar with the F75, I was approached by a mom and her daughter. The girl had lost a family heirloom the day before, whiich was a tiny gold ring with the birthstones of the mom's grandparents. The girl was about 8 or 9 years old (and clearly feared never making it to another birthday). They were fairly certain that the ring was lost in a specific area which was about 35-40 yards by about 15 yards. I got the family phone number and gave them just my first name and home phone (to call me if the ring turned up).
I set the F75 at 15 descrim, 80 sens, DE mode, and delta pitch. Spent 4 hours that night digging all signals. Went back the next day for 4 hours, searching at right angles tio the first night. Although this is a great site to get familiar with a new machine (low trash, high clad) I dug a tremendous amount of foil, flip tops, and a LOT of clad, but no ring. I called the mom and asked if they had possibly found the ring at home, but they say they've searched the car and the house extensively without luck. I've been back 3 more times and the targets are starting to get pretty scarce, though it's AMAZING that targets keep popping up. I've been over the area from SIX different directions. I'm down to digging foil the size of a newborn's fingernail, but still no ring.
Any suggestions would be really appreciated.
TIA,
Tagamet
PS This may just have been God's way to get me to learn DP mode, because I've really learned a lot about the signal sounds.

 

[Mr.Bill]

I would run in the Disc. mode with nothing discriminated out. Use 2 tones, Set in JE process. Sensitivity as high as one can stand.

The little gold ring is most likely going to come in right on the edge iron, and good side. It's not going to come in very high up the scale.

I have found that the pre-set iron discrimination has been a tad to high on small lead targets, and because small children's gold ring jewelry are a poor conductor they come in right around the lead - iron range.

Go back and give it another try, you will be surprised.

 

[MattR]

Why are you hunting in delta pitch mode?

Why is your Sens. at 80?

A small gold ring, lost recently, is theoretically within a couple of inches of the surface at worst.

So I would disc out to 15 with sense at 50, and as Bill said, 2 tones.

I don't know what carat-gold the ring is, but if it's a child size and 'thin' band, with stone, then I guess it'd VDI is no higher than 40. Probably in the 30's at best....Good luck

 

[Tagamet]

[quote MattR]Why are you hunting in delta pitch mode?
Why is your Sens. at 80?
A small gold ring, lost recently, is theoretically within a couple of inches of the surface at worst.
So I would disc out to 15 with sense at 50, and as Bill said, 2 tones.
I don't know what carat-gold the ring is, but if it's a child size and 'thin' band, with stone, then I guess it'd VDI is no higher than 40. Probably in the 30's at best....Good luck[/quote]

I understand why I can lower the sens without issue (I had it high so I wouldn't miss such a small target), but help me understand why I should use just two tones? My (faulty) reasoning was that I'd get more info about each target with delta pitch (and I'm learning about the F75 to boot since I'm already digging all hits).
Thanks for the "schooling"
Tagamet

 

[chuck ky]

if you have time expand the area. the only ring i found where they knew where it was at it ended up a lot further away. they saw it fall but they were running and may have knocked it further. good luck.

 

[Tagamet]

[quote chuck, ky]if you have time expand the area. the only ring i found where they knew where it was at it ended up a lot further away. they saw it fall but they were running and may have knocked it further. good luck.[/quote]

Yeah, I thought that too. Also they just mowed the fields, so it may have been sucked up and thrown almost anywhere (SIGH).
I'll just keep on plugging.
Tagamet

 

[MattR]

Hello again Tag.

Please remember that these are only personal opinions on matters, and nothing is 'written in stone'.

My approach is based on the idea that:=

(a) The item is virtually on surface, or shallow, due to being trodden on.

(b) Why not use delta pitch?

Because I imagine that mentally it is not conducive to concentration whilst searching for something specific.
You will need to verify that for yourself, and I may be wrong.
I believe that psychologically you will be more attentive to the higher tone signals, which is probably not what you will get unless the search-head is touching this target.
2 tone mode will remove that temptation and vagaries of delta pitch.

2 tones will in fact only give you one tone, for the items above the base line disc level you have chosen.

Let that singular tone discipline you to observe the display for its interpretive VDI, depth and confidence. (A ring should give all).

DON't mess around with notch, you can end up in a mess if you aren't careful in setting it up.
You're looking for a particular VDI number range (20 to 40)

Foils will be in the 20's.

Depth bar indications in the top TWO segments of the scale.

Remember, this child's ring is of smaller diameter than a 1 inch standard penny, which is the calibration standard for the depth meter.
So a small ring at 4 inches would probably read in the 4 to 8 inch mid-range block.

Depth bar being in 3 chunks, 0-4", 4-8", 8-12",..deeper.
This is a handy 'on-the-fly' aid without Pin-pointing.

(Keep your search-head low to the grass)

All the best.....Matt

 

[Tagamet]

n/t

 

[Tagamet]

[quote Tagamet]While hunting at a local soccer field, getting familiar with the F75, I was approached by a mom and her daughter. The girl had lost a family heirloom the day before, whiich was a tiny gold ring with the birthstones of the mom's grandparents. The girl was about 8 or 9 years old (and clearly feared never making it to another birthday). They were fairly certain that the ring was lost in a specific area which was about 35-40 yards by about 15 yards. I got the family phone number and gave them just my first name and home phone (to call me if the ring turned up).
I set the F75 at 15 descrim, 80 sens, DE mode, and delta pitch. Spent 4 hours that night digging all signals. Went back the next day for 4 hours, searching at right angles tio the first night. Although this is a great site to get familiar with a new machine (low trash, high clad) I dug a tremendous amount of foil, flip tops, and a LOT of clad, but no ring. I called the mom and asked if they had possibly found the ring at home, but they say they've searched the car and the house extensively without luck. I've been back 3 more times and the targets are starting to get pretty scarce, though it's AMAZING that targets keep popping up. I've been over the area from SIX different directions. I'm down to digging foil the size of a newborn's fingernail, but still no ring.
Any suggestions would be really appreciated.
TIA,
Tagamet
PS This may just have been God's way to get me to learn DP mode, because I've really learned a lot about the signal sounds.[/quote]

My heart skipped a couple of beats when this popped up, but it's not the one I was looking for (no stones). Just enough to keep me pluggin along though. It rang up like a nickel (33)
Tagamet