Metal jungle gyms + Prizm V = ????

#1
I generally will MD with my sensitivity pretty high (provided the mineralization isn't too high) and discard only nails. Here's my issue. When I hit the tot lots that have metal playground equipment, I can't come any closer than about 14 to 16 inches from any "pole" without getting a false signal. The Prizm V will tell me that I have a good nickel / ring target at about 2 to 4 inches every time I get that close to a "pole" on the slide, swing, whatever it is. Also, it only does this when the coil is exactly perpendicular to the "pole." It doesn't matter if it is to the side, in front of, or behind the coil. I will get the false signal every time. I feel like I'm missing a lot of potential targets close to and under some of this playground equipment because of this. Anybody out there run into a similar issue? Any thoughts on a solution would be helpful.
 
#2
A small coil is what you need, to be able to get closer to the poles, small shooter coil, but I don't know which one fits your machine, check the whites website for a listing of compatible coils for your particular machine.
 

EPC Guy

TQ Ambassador
#3
A small coil is what you need, to be able to get closer to the poles, small shooter coil, but I don't know which one fits your machine, check the whites website for a listing of compatible coils for your particular machine.
My thought exactly...I run into the same thing...and I've still not bought whatever White's version of a sniper coil is...I really need to get one at least for my prizm...there's no doubt I'm missing stuff in the tot lots...
 

EBCIII

Well-Known Member
#4
I agree 100% a small coil is needed. I really want the 6" DD that Minelab makes. It would make the tot lots much easier, Beale.
 
#5
It not only is the smaller coil which gives off a smaller field but lowering the sensitivity also lowers the field and makes it smaller. Also remember that the poles may go into the ground at an angle and you could read the pole down there at over a foot deep but because of the angle you could be two feet away from the pole.

Smaller coil and less sensitivity.
 

EPC Guy

TQ Ambassador
#6
It not only is the smaller coil which gives off a smaller field but lowering the sensitivity also lowers the field and makes it smaller. Also remember that the poles may go into the ground at an angle and you could read the pole down there at over a foot deep but because of the angle you could be two feet away from the pole.

Smaller coil and less sensitivity.
Good point on the angle of the poles, Sandman!
 
#8
I like the small coil idea, unfortunately White's does not make a sniper coil that fits the Prizm V. I tried to find one a while back only to discover they don't make it! :frown: I will try turning the sensitivity down, but won't that cost me some depth? I suppose that I will just have to try and find a happy medium until I can afford a little better metal detector.
 
#11
try putting your back against the pole and try sweeping with your foot between the coin and the pole , I have had some success doing this with my spectrum .
 
#12
Hey Methuselah (aka very old one),

You should look into Whites Prizm Mini "DD" coil. I have not used it, but it sure looks to be very similiar to the Whites 4X6 mini "DD" coil that I use on my MXT. I am very pleased with it as I can get closer to those iron obstructions, separates trash/targets out quite well, and it works well in mineralized soil.

This is directly from the Whites site:

Prizmā„¢ Mini "DD"
Provides excellent trash rejection while maintaining good detection depth and performance in extreme grounds. Works great with all Prizm, II, III, IV, V, 6T. Maintains reasonable display calibration. Works with standard Mini "DD" loop cover #501-4117.
P/N 801-3237

Hawk
 

Ric-san

Well-Known Member
#13
Great replies by all...I'll post my $.02 here for ya.... You mentioned being worried about depth, at a tot lot you really don't have to dig that deep to find stuff unless you are like me doing a older military base and I was hitting old pipes from old barracks of WW2 at around 12"...nothing in a tot lot should be that deep there... everyone already mentioned a 'sniper' style smaller coil, but if all you can find are new expensive ones, try what I did....found a Tesoro Compadre on craigslist for about half price of new ($80) and use it pretty exclusively on both tot-lots and easement hunt. Its a turn and go detector with a 5.75 coil, it likes gold, and has paid for itself already ....good luck, gotta love those tot lots...

Rick
 
Top