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deep search coil
- Thread starter slabbitt
- Start date
Used the 10.5" coil on my CZ's, and it got up to three inches deeper than my 8", depending on site conditions. My deepest coins that had clear indications and good id's with 8" coil came in around the 10" mark, that jumped to almost 14" with the 10.5" coil but only in good ground. Much harder to use the big coil in trashy sites unless you were digging all targets.
Unfortunately that DD coil the Minelab folks use does outclass you on target separation, so they can get the best of you in moderate and even light trash.
The trade-off they take in silver cherry picking is they have high disc from my experience hunting with the SE and ETrac users. So you have a lot of targets you can choose from that they never see any indication of, depending on how you set your disc. So you have a better chance of pulling that old nickel, gold or iffy silver target if you're being careful.
If you can get used to the mode, autotune can give you that depth and target separation but it's slow going and takes some ear tweaking.
Find an area where your id readouts indicate x number of targets in a given space, say 10 square feet with about 5 targets every 2 square feet in an old park. This kind of spot usually has good coinage deep that has been masked. Go over it in id mode, leaving iron notched out make a mental note of all target indications. Then go into autotune and go back over it s-l-o-w-l-y. Listen for those hits in between or near the targets you have already noted. Do this with your sense level at 6. Then try it at sense level 8 and then 10.
My experience with my CZ5/7 and 20 all showed me I needed to run sense at 10 to consistently get the deepest good targets. Unfortunately that's also where it allows the most masking.
Unfortunately that DD coil the Minelab folks use does outclass you on target separation, so they can get the best of you in moderate and even light trash.
The trade-off they take in silver cherry picking is they have high disc from my experience hunting with the SE and ETrac users. So you have a lot of targets you can choose from that they never see any indication of, depending on how you set your disc. So you have a better chance of pulling that old nickel, gold or iffy silver target if you're being careful.
If you can get used to the mode, autotune can give you that depth and target separation but it's slow going and takes some ear tweaking.
Find an area where your id readouts indicate x number of targets in a given space, say 10 square feet with about 5 targets every 2 square feet in an old park. This kind of spot usually has good coinage deep that has been masked. Go over it in id mode, leaving iron notched out make a mental note of all target indications. Then go into autotune and go back over it s-l-o-w-l-y. Listen for those hits in between or near the targets you have already noted. Do this with your sense level at 6. Then try it at sense level 8 and then 10.
My experience with my CZ5/7 and 20 all showed me I needed to run sense at 10 to consistently get the deepest good targets. Unfortunately that's also where it allows the most masking.
I have then 10.5" Fisher coil on my CZ70 and it's deeper then the 8" stock coil, BUT when I got my hands on the Sunray FZ12 it was deeper then the 10.5" Fisher coil and I found many deep silver coins that didn't hit on the 10.5" Fisher coil.
The Sunray coil is well worth seeking out
The Sunray coil is well worth seeking out
ElginTim, Thanx 4 the very well explained reply. The stock 8" coil has dug me 4 coffee cans full of change, with gobs of silver, and have a showcase full of rings, and jewelry. Very user friendly, just need to get a bit deeper, as the minelab i am hunting against is showing a trashy area just under what mine reaches. He pulled a standing liberty half from 11" and I had just combed that very spot.. Thanx again for the info..HH Bill I did find a 1917 ww1 badge LLLL last friday in the city park. First military item in 10 yrs!!