CZ-7 Ground Balancing question.

[Anonymous]

Gents, I've owned a CZ-7 for about 7 yrs now, and I want to see if any of you have noticed something in your CZ's. Where I hunt land, South Florida, there is basically no mineralization, just white rock (oolite, I guess they call it) plus greyish sand, like from pine forest type landscapes.
My CZ will not balance to this dirt, I mean that it never makes a change in sound in all-metal mode no matter what GB setting I choose. Should I be able to get away with setting the GB control at 10, which is supposedly no GB, and get better depth? I tried this a couple of times, machine seemed to false a little more, but it seemed like the depth was a little better, but I don't have a test garden to check.
Has anyone else noticed this behavior with their CZ's in non-mineralized ground?

 

[Anonymous]

I'D RUN IT AT 10, OR THE POINT WHERE NO FALSING OCCURS. HERE ON THE GULF COAST WE HAVE VERY LOW MINERAL, AND MANY PEOPLE RUN AT THE PRESET.

 

[Anonymous]

Vlad has a good way of setting up as inded some areas
just won't ground balance..Might tone your sens. down a bit as even in lower sens. numbers a CZ will go deep without falsing...Over the good old U.S.A. many ground conditions..Refer to the manual and set up as per instructions or perhaps give Fisher a call as they may have a better answer...or trick,or two...

 

[Anonymous]

Here's how I understand how GB works.
Forget what "number" your detector balances at. The number is irrelevant. What really matters is the "zone", if you will, or the amount of arc on the GB knob, say, from 4 - 4.5 on the knob, that gives you a sweet ground balance on your CZ. The lower the mineralization in your area, the more arc of the knob (or bigger "zone") will give you a good GB. The more mineralization in your dirt, the tighter the "zone" or less arc of the knob will achieve the desired results.
I started hunting in somewhat mild dirt that would give me the "zone" that was usually half of a number, again, say from 4 - 4.5, or 5 - 5.5, etc. When I moved up here to MI, I noticed that I had a really hard time GB'ing my CZ-5, as I just never could find that "sweet spot" on the dial. Guess what? There's LOADS of iron in the dirt here (lots of Iron mines up north, that's why the auto industry is based in Detroit).
From what I understand, Florida's beaches and soils are so mineral-free, that the "zone" or "sweet spot" on the GB knob basically incompasses the ENTIRE range of the knob. Therefore, any setting is good. Some folks will swear by setting the unit at 0 on the dail, while others swear by 10, and some folks try to get the best of both worlds and hunt at the preset 5.
What I can suggest to you, is find a really DEEP target. I know that they're there, coins sink fast in Floridian soil. Once you find one, fiddle with your GB knob while swinging slowly over your target. Once you find the sweetest spot, that gives you the best definition of your target, you have found the perfect GB for that spot in your soil.
HH from Allen in MI