Air testing vs Real world

[WV62]

I am Mud, looks maybe 3 stones. Seems kind of odd that all the stones are missing, just wonder if they were removed by the original owner and then the ring was just carried for a keep sake. My wife did something like that with her mothers rings and had the stones mounted in another ring.

We will never know, but still a nice find,

Ron in WV

 

[dbax]

Hey Mud, you may be right about this. I went out this morning for a bout 3 hours. Found four more rings, two silver and two some kind of junk rings that are cute but worthless. My final conclusion is what you already know, on the subject of air testing vs the real world field work. Dirt Depth plays a part how the tabs read and today I found more nickel than ever before, and this was after Notching IN nickel, I removed all Notching and set Disc at 16 and dug fifty tabs of both varieties and the different in their readings depended upon their depth. The nickels were reading from mid 30s all the way up into the 50s, several locked on at 45 while before they were always in the Notch range of 34-35, not anymore. The depth and time in soil seemed to determine the reading. This, in my opinion, why so many nickels are left behind by other hunters, they are seen as junk, tabs. So, the air testing is only a small guide but the real world is in the field. I will do as other old timers say, dig everything.

 

[MarkCZ]

The nickels were reading from mid 30s all the way up into the 50s, several locked on at 45 while before they were always in the Notch range of 34-35, not anymore. The depth and time in soil seemed to determine the reading. This, in my opinion, why so many nickels are left behind by other hunters, they are seen as junk, tabs. So, the air testing is only a small guide but the real world is in the field. I will do as other old timers say, dig everything.

So, in the above results its looks like you confirmed a little of my Nickel findings, I'm surprised a bit that in air test the nickels held their ID range all the way out to max depth but inclined in the field. But I know that different models and brands of detectors do things a little different and have slightly different responses to different variables.

As much as nickels have been a problem for me, they've been just as interesting.

Mark

 

[dbax]

Hey Mud, yeah, in the air testing the values of all of the junk and the good finds read in their appropriate range, on a consistent basis. This would see to work fine for a developer in the work bench testing for the best electronics what-ever but the final is the real world use -- I imagine soil while have something to say about the readings too. If I go on sound alone then I am digging every tab, piece of foil there is. I have notice the square tab reads a strong Nickel if it is close to the surface, a Beaver Tail will read right in that nice gold ring range, as also some of the nickels, all depending on the depth, the Beaver tail are right in that same range as that gold ring I found, but the are a little more nervous, steady 42-45 on two or three passes then dropping down or up then back again, but in my mind, not having dug that many gold rings, I have to dig them. Going out again in the morning -- Bottle caps are not so much an issue with me anymore either. Close to the surface they read like a quarter, a little deeper like a penny sometimes but with a face surface swing they are skipped over and fail to give a consistent sound that would make me dig them, as in the past, unless they are right in the 1" of surface range. Still, it is disappointing getting a solid quarter sound and reading only for it to be a Bottle cap. Thanks to you mud, for putting me on to the weed whacker method. With this Fisher F70 and its fast return signal it works great. peace brother.

 

[mudpuppy]

Knarfj just did a good graph airtesting an F5...seems to be similar to the 70...I like the lower sens and the -3 thresh, his graph shows 7" on targets we are looking for, and that seems to be what I'm getting...plenty deep enough, and gives a fellow the ability to not have to scrub ground, I bet my coil is a good 3-4" off the dirt in general hunting jewelry and clad, so the majority of my finds are in the top to 4"depth..
.
One thing about the super fast sweep, it works great when targets are all alone, or at least a little away from some others, you are right, the machine will sing at the faster speed than a slower one on those deep singles...but if theres multiple targets, a guy has to slow it down a tad....sometimes all you get is a weird little chirp, especially if the target was near the edge of the coil and it could be easily missed..

When I'm hunting heavy trash, mutliple targets, like at the bottom edge of bleachers or sidelines, parking lot edges, foil, tabs, crowns, wire, etc... I will hover the coil higher off the ground when normal and slow down sweep, and bounce coil vertical, like a blind man tapping along with a cane...the F70 pings targets when briskly tapped vertically!...(coil hop) .great for pinpointing, seems just the little center spot on the 11"dd hones in on the target...really handy in heavy trash where a side to side sweep gets too many targets under it...you might be able to duplicate the quick tap through airtesting...just move a coin in and out really fast under the coil instead of side to side and see?
Mud.

 

[dbax]

Hey Mud,
I will give the tapping a try, I use a wiggle that seems to work pretty good. Only found 8 quarters in my last outing but came up with two man-sized silver rings. Square tabs have become a real pain, when close to the surface they sound of in that gold ring range, and guess what, I am finding nickels in that range too. Nickels read in the mid 30s solid I know for sure it is a nickel but in the mid 40s it is nearly always a tab, but not always, once a gold ring and about 20 times now, a nickel. Pennies close to the surface sound off like a dime at times, especially if it is a real copper (1981 and before). So, still, the air testing is one thing and the real world is another. Still, every sport (?) has to have rules and then those seeking to move from the average have to learn how to bend, even break the rules -- yeah, right, what do I know -- I get out in the field and sometimes get so confused I have to take a break and think about other things, have a cigar, enjoy the beauty around me, wonder why that cop is walking my direction and hope I can find one more ring before I go home. Hey, the cop says, you can't be in here smoking -- this is a no smoking zone, and no drinking. I hold my cup up, "Coffee?" "Coffee is okay, he says but no alcohol and no smoking". Yes sir, I say and toss my nearly spent cigar into my cup. I thought about handing the officer the ten or so beer caps I had in my trash pouch but decide not to. I am escorted to another part of the park and resume my searching. Peace to one and all, Dan