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Another ground balancing question....

A

Anonymous

Guest
Does it make more sense to GB at the sens you will be using? For example if I'm going to be detecting a site with a sens of 4 it doesn't make sense to GB at 10 then decrease the sens to 4. Obviously if I raise my sens I rebalance to that setting. I've always GB'ed at the sens I am using, am I missing something by not GB'ing at 10 then backing down?
 
Ground balance with your sens. at 10 and perhaps the area you are hunting may allow you a 5-6-7-8 sens. setting. I don't buy using it at four unless thats the highest you can go while keeping a stable unit..
More sens. more depth and I usually run 6 or 8 on my digital CZ7A.
Remember also to keep the volume at 10 as you will be able to hear noise changes better for a more accurate ground balance. After balancing you can then set it lower if you wish for a modulated audio affect..
 
Subject should have read (sure doesn't) as I misread your question..Believe me those that don't run higher than 4 if a stable machine is had are missing the really deep ones. Used a CZ since they came out and last week dug two mercury dimes at over a foot at 8 sens. Next time will drop my sens. to 4 to see if I would still get them if I get a real deep target..Seems like some advocate run at 4 as it won't go any deeper (nah)I have been there and done that over the years...so speaking from experience not something I read in a book..
 
I agree that if you can run at 8 it is deeper than a sens of 4. But my question is.... if a site can only handle a sens of 6 for example, is your GB more accurate doing it at 6 instead of GB'ing at 10 then turning it down to 6?
 
We hunted a area several times with Sens. at 4 on our CZ 6a and 7a pro. we hunted this area more than one day. We were using 8" coils and GB was at 5. We dropped our Sens. down to 2 and we started finding some Wheaties at 2". I have heard that to much Sens. will mask something shallow, sometimes. I have dug Barbers dimes at 2" in this site, and this site has been hunted for years. My oldest coins from this site are 1899 dime's,1897 quarter,1898 V nickel, 1864 IH, none of these were very deep, but the V nickel was very very deep,like 24" but that was luck. This one area of this site, they had done some dirt work and cut down the ground level. We were finding coins to the edge of some small gravel, but no coins past that line. I dug down about 17" to 18", a pit about 3' by 3'. I got down in the pit with a Sovereign and a 5" coil and got one signal, a 136. My friend checked it with his CZ 6a and if I remember right, it read foil, anyway at 7" was the V nickel. We have been hunting this site for like a year and 3 months. I hunt with zero disc. and very the Sens. from low to high. What ever works for you, just go out and have some fun, just dig it. PS Allen made a good post on Fisher forum here, about Ground Balance. HH...BJ
 
The ground balance is sensitive to the ground affecting the metal detectors response to the ground effect and when you set it with a higher sensitivity you will have a much better gb set up.
When you operate in a ground with a lesser sensitivity setting and gb set for a sensitivity that is higher you can't go wrong with your ground balance setting,
If you get unstable operation in an area and have your detector reduced to say 4 senstitivity setting and then ground balance for 4 senstivity how do you know what your best set is. If you adjust your ground balance at the highest sensitivity setting of ten volume and ten senstivity and then when you go to operate at a particular sensetivity you may be able to operate at say 6 instead of 4 at that spot.
I always setup my gb in all metal mode at highest settings volume and gb controls. Then when I lower the sense setting later for best stable operation I know I will be able to operate at the optimum for the area. I believe what your are trying to do is extra guessing and work for nothing and sure doesn't allow for a best ground balance setup. As your are suppose to be setting the detectors maximum ability to reduce its response to the grounds affect and thats to do a ground balance with max senstivity when its possible. Only when not possible you will need to use lesser gb senstivity setup.
Just following the operating manual and it works for me pretty good.
HH
Dan R.
 
I also try the minimum senstivity settings in places not only with the stock coil but with all my other coils. That is way down to zero setting at times.
I believe its the real narrow foot prints that help with target separation that makes those surprising shallow target finds. some times the ground also has shallow other metalics in it whether minerals or actual metal that may be causing some masking. I have found using a powerful magnet just to sweep the dirt pile I got quite a bit stuck to the magnet at times.
HH
Dan R.
 
I really haven't seen an answer to my question, and nobody may really know. I'm not second guessing or making extra work in the example I gave, the site wouldn't handle a setting above 6 no matter how I ground balance. Therefore it seems I would get a better GB for a sens of 6 when I GB at 6 instead of GB'ing at 10 then reducing sens to 6. The manual does say set at 10 when GB'ing, maybe I'm looking for a more technical answer. Some of the sites I go to regularly I know exactly how much sens they will handle and I've had good results GB'ing at the sens I will be using. I don't want to sound argumentative and I do appreciate your reply.
 
I use the Uni Probe head phone's and probe. I have got some small metal out of hole's after I got the coin, that probe is good at getting that small stuff, some times to good. I think the probe is pulse. I have a magnet and will try that. Thank's and HH. BJ
 
Joe you bring up a good point. If I remember right thats what the book recommends. Actually many years ago was taught the bobbing method setting sens. at 10 and having excellent rsults always done it that way. Might want to talk to a Fisher Tech. as your point is sure valid from my point of view.Do let us know what he recommends and we all learn bouncing these aspects around..
 
The idea in doing the GB at sens 10 and then lowering it is that IF you decide to go above 4, to say 6 or 8, then you don't have to GB again. If you set the GB at sens 4 and then raise it later you have to do the GB again. So why not do it at 10, lower it to what you want, and have the OPTION of adjusting the sensitivity without having to re-do the GB? Doing it you way, the only thing you save is the effort of moving the sens back down from 10 to 4, hardly much of a savings.
Then again, if you NEVER intend to go above 4, by all means, do the GB at sens 4. Makes plenty of sense. And I happen to believe that with a CZ-70 anyway, most times you will only be able to run sens at 4 without falsing. And that you ARE getting about 95% of your possible depth at sens 4 anyway, as has been stated by Tom Dankowski. So if you have come to the same conclusion, set the sens to 4 and do your GB and don't worry about ever going up beyond that because you have a much better chance of getting false signals at 6 and above than you do of finding a target that you won't find at sens 4. And anybody that doubts that should try it first. I have...with the 10.5", the 8", and the 5". I run sens 4 about 95% of the time. In REAL clean ground, mostly the woods, I will sometimes push it higher and it will hunt stable. But when I get a deep one I always check it at 4 and it's always still there. Now when dropping to sens 2, there is a deinite loss of depth. But as has been also said, there are times when that is appropriate too. Like maybe around power lines for example.
Anyway, that's my two LARGE CENTS! <img src="/metal/html/lol.gif" border=0 width=15 height=15 alt=":lol">
 
Yep...I usually run at 2 in a park for clad and to help work between the junk..In older places go as high as I can usually 6 or 8 on my digital CZ7A...
 
You are not coming across argumentative I understand your now saying no way could you gb at the highest sense setting. Like I also mentioned if it wasn't possible to do it at the highest setting then of course you would have to get it done at whatever setting possible.
I just don't think the method you mention as a substitue for making the highest setting the first choice.
HH
Dan R.
 
No, that's incorrect. You only have to do it if you initially GB'd it at something other than 10 to start with. If you do it at 10 to start with, you can move it anywhere along the scale as much as you like without re-doing it. This is precisely why they say to do it at 10. Therefore, that's why I do it at 10.
 
I use a cz70Pro , its the only cz I ever used.
I have read most all the manuals on the other cz's and can't find any other methods for ground balancing cz's so far. It seems to me any metal detector will have the most senstivity to ground conditions at its highest senstitivity adjustment and when ground balanced with that high senstivity adjustment so the ground has least affect it would be the way to go. Works for me with all my detectors not only the Fisher. Get best stability and id's.
HH
Dan R.
 
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