I apologize for this repeat message from the other Fisher forum...but I'm hoping to get some tips about a few different areas. If I notch in high coins, zinc, relic icon...will I hit most all coins including older indian cents? 99% of the time I strictly coinshoot for old silver...but I don't want to walk over an indian cent either. Just wanted to touch on the subject of sensivity too. I know almost everyone has to hunt with the sens at 4 with the cz70. When I found the 8" Barber the other day I was at 4 as well but the signal wasn't 100% solid. I upped the sens to 6 and checked the signal again and it was definately solid and repeatable to where there was no doubt about digging it. I probably would have dug it with the signal sound at sens 4...but it was definately much more sold and clear when I hit the same signal at 6. That kind of "did it" for me. If I can I am going to get the sens to 6 if the soil allows me. I did notice a difference in where it ground balanced at though. At sens 4 it usually grounds around the red 5...but with the sens at 6 it would usually ground around 3 on the knob. Does that lower number where it ground balances at affect anything?
Find's Treasure Forums
Welcome to Find's Treasure Forums, Guests!
You are viewing this forums as a guest which limits you to read only status.
Only registered members may post stories, questions, classifieds, reply to other posts, contact other members using built in messaging and use many other features found on these forums.
Why not register and join us today? It's free! (We don't share your email addresses with anyone.) We keep email addresses of our users to protect them and others from bad people posting things they shouldn't.
Click here to register!
Need Support Help?
Cannot log in?, click here to have new password emailed to you
Changed email? Forgot to update your account with new email address? Need assistance with something else?, click here to go to Find's Support Form and fill out the form.
Notching and ground balancing on the cz70 + getting sensitivity to 6
- Thread starter Hotcz70
- Start date
christopher-ohio
Active member
Hello, I have hunted with my CZ-70's for hundreds of hours at many sites. I have posted in the past that I hunt mainly at a sensitivity of 6 for the same reasons that you have posted...I have not noticed a difference of any significance when I ground balance however...usually it's about the same. Thomas Dankowski, many others and myself recommend not notching anything and hearing everything especially the bounces. The iron sound can be very annoying especially at old iron laden sites but it can really make a difference with finding the tougher iffy targets in all the iron trash. I've gone over the same sites with multiple machines after my CZ-70, and usually I only find a few good targets that I missed with the 8 inch coil. I have many sites that I went over with a CZ-3D, White's XL Pro, EXII, EX XS and others which just confirmed my happiness with my CZ-70. Hope this helps...HH
Hi.
thanks for the response. The ground balance is throwing me a little. It always grounds at 5 every time but when the sensitivity is at 6 it only grounds at 3 to 4. This won't affect depth in any way will it? Even when it grounds at the lower number on the knob it is still just as stable as when it grounds at 5. Does it make a difference what number it grounds at?
thanks
thanks for the response. The ground balance is throwing me a little. It always grounds at 5 every time but when the sensitivity is at 6 it only grounds at 3 to 4. This won't affect depth in any way will it? Even when it grounds at the lower number on the knob it is still just as stable as when it grounds at 5. Does it make a difference what number it grounds at?
thanks
christopher-ohio
Active member
The ground balance number really depends on your soil. Here in Northern Ohio, we have mostly deep black loamy soil that usually ground balances between 3 to 4 for me at either 4 to 6 sensitivity setting. I really doubt it would affect the detection depth as long as it's done properly. I have always used the pushbutton method for ground balancing but many prefer the bobbing method since they feel it is more accurate. When I ground balance, I turn the knob until I get the loud tone, then turn it back until it's barely audible like a threshold tone but in the ID mode. I was in South Central Virginia in Danville and met up with Mike-Virginia Beach. The soil was a very nasty thick iron rich clay. Both of our CZ-70's GB'd to around 1 at a sensitivity of 4 or 6. I couldn't really use my CZ-3D since it just didn't work well for me at any setting. Hope this helps...HH
Once nice thing about a CZ is you can discrminate high without loosing
any depth..Many times I just notch in coins all when going for silver coins and have to say I got my deepest silver that way.
Of course all depends what your looking for and personal preferences relative what you accept.
Bobbing method is a bit more accurate, but many use either way and do well..Years ago a dealer( avid detectorist) alerted me to this and have bobbed since.
As far as where the knob ends when ground balanced was explained to me my a Fisher tech has no correlation to the amount of mineralization just as long as its done properly.
Having used all models of the CZ for some reason the sensitivity of a CZ70 has slightly different parameters and rarely can get it over 4 in my neck of the woods, while in same areas was able to raise sensitivty with other model CZ's to 5 thru 8 while maintaining a stable. unit..Good news even at 4 its a depth demon and compares to other CZ's at higher numbers when it comes to depth.
any depth..Many times I just notch in coins all when going for silver coins and have to say I got my deepest silver that way.
Of course all depends what your looking for and personal preferences relative what you accept.
Bobbing method is a bit more accurate, but many use either way and do well..Years ago a dealer( avid detectorist) alerted me to this and have bobbed since.
As far as where the knob ends when ground balanced was explained to me my a Fisher tech has no correlation to the amount of mineralization just as long as its done properly.
Having used all models of the CZ for some reason the sensitivity of a CZ70 has slightly different parameters and rarely can get it over 4 in my neck of the woods, while in same areas was able to raise sensitivty with other model CZ's to 5 thru 8 while maintaining a stable. unit..Good news even at 4 its a depth demon and compares to other CZ's at higher numbers when it comes to depth.
A
Anonymous
Guest
About "where" the unit balances out at as not having a real importance in mineraliztion.
What high mineralization really does is make it harder to GB your CZ correctly. In a low-mineralized area, if you do the "bobbing" method, and have your Sens. set at 10 when you do the GB, you'll get a "zone" of arc on the GB knob that gives a good neutral GB, with no sound on the up- or down-stroke. This "zone" may extend for several degrees of arc on the knob, say, from 4.5 to 5.5. The less mineralization you have, the "bigger" this "zone" gets. Conversely, when there is high mineralization, this "zone" gets smaller, and in extreme cases, the "zone" will dissappear entirely.
In the mineral-free sands of Florida, the "zone" is so big, that it encompasses the entire range of movement on the GB knob, from 1 to 10. Many people have said that you cannot GB a CZ on a Florida beach, so just set the knob at 10, or 1, ect.
Here in my area, with all the iron in the soil, properly GB'ing my CZ-5 in the NORMAL mode is a challenge, to say the least. The "zone" is so small, that I usually can not get a neutral GB with the bobbing method. I usually hunt slightly negative (a little bit of sound on the up-stroke of bobbing) anyways. However, I've found that hunting in SALT mode, and GB'ing in that mode, gives me a little better depth and discrimination at depth. In less mineralized areas, hunting in SALT mode increases the size of the "zone" of a good neutral GB.
Try hunting in SALT mode once, then GB, just to see what it does. I'm not sure what the ground's like in Illinois, as I've never hunted there. However, when the ground's wet, and there's iron around, you might want to try the SALT mode to help cut down on the mineralization.
HH from Allen in MI
What high mineralization really does is make it harder to GB your CZ correctly. In a low-mineralized area, if you do the "bobbing" method, and have your Sens. set at 10 when you do the GB, you'll get a "zone" of arc on the GB knob that gives a good neutral GB, with no sound on the up- or down-stroke. This "zone" may extend for several degrees of arc on the knob, say, from 4.5 to 5.5. The less mineralization you have, the "bigger" this "zone" gets. Conversely, when there is high mineralization, this "zone" gets smaller, and in extreme cases, the "zone" will dissappear entirely.
In the mineral-free sands of Florida, the "zone" is so big, that it encompasses the entire range of movement on the GB knob, from 1 to 10. Many people have said that you cannot GB a CZ on a Florida beach, so just set the knob at 10, or 1, ect.
Here in my area, with all the iron in the soil, properly GB'ing my CZ-5 in the NORMAL mode is a challenge, to say the least. The "zone" is so small, that I usually can not get a neutral GB with the bobbing method. I usually hunt slightly negative (a little bit of sound on the up-stroke of bobbing) anyways. However, I've found that hunting in SALT mode, and GB'ing in that mode, gives me a little better depth and discrimination at depth. In less mineralized areas, hunting in SALT mode increases the size of the "zone" of a good neutral GB.
Try hunting in SALT mode once, then GB, just to see what it does. I'm not sure what the ground's like in Illinois, as I've never hunted there. However, when the ground's wet, and there's iron around, you might want to try the SALT mode to help cut down on the mineralization.
HH from Allen in MI
A
Anonymous
Guest
n/t
A few years ago I had gone up to Ak. and was prospecting for gold in the Brooks Range (in the Arctic Circle) with a CZ6a. This area was sooo heavily and strangely mineralised that no other VLF detector could be used. Sticking the CZ into salt mode at max sensitivity allowed me to find more gold than two other guys on the creek who were swinging SD2200d's. I also picked up 'nuggets' down to about 3-4 grains. ..Willy.
Brandon/ny
New member
I've been a Whites user for 8 or 9 years now and have done just fine with the Classic I.D. and DFX. My buddy has the IDX Pro. I do want to try another brand to see if The different circuitry and set up will help us pull some more finds out of our heavily (Whites)hunted sites. I was hunting with another friend who did better with a lower priced BH around an old iron rich foundation for buttons, than I did with my DFX. It got me thinking that a different brand may be a nice change. Now for the ???, is the CZ70 good around cellar holes? This is where i mostly hunt. The DFX has really impressed me but I do know from many hours spent detecting that the DFX tends to lose a signal on a good target next to iron. I also tried it on a beach in the Hamptons(NY) and found the depth to be poor. Would a CZ70 or other CZ work better at these sites? i'm in the market for a good used detector to make up for the Classic I gave to a friend. I'm torn b/w the Shadow X3, CZ3d, and CZ70. Thanks a bunch!