AT Gold ground balance

[LaRelic]

I recently started using the 8.5" by 11" coil on the At gold. I've noticed that my ground balance numbers have dropped into the 20's. While using the 5"by8" it would balance in the 40's. This is hunting the same ground and using the auto ground balance feature. Is this normal when using a bigger coil? Could something be wrong? Other than that it seems to be running good. Any help would be great. Thanks HH

 

[BJ in Okla.]

This is what I do,,,,,max the sens in AM mode and find the cleanest spot that you can,,
Then go to Disc 1 and drop the Sens down 2 or 3 bars from Max.....
I talked to Adam at Garrett about this, and he agreed.
If you GB in AM mode at max sens, that is a deep mode and if there is something small there deep,
then this can throw your GB off.....
I was doing the GB in AM mode at max sens,, and my GB number went down to 04 and in Disc 1
and 6 bars of sens, my GB number was 44.......
After you GB, the you can change modes and Sens and hunt......

I have 2 AT Pro's, 1 with the 5x8 coil and the 2nd AT Pro with the 4.5" coil,,,,in the same spot,
and the same settings,,,the GB number will be the same,
So, you should not see 20 numbers difference,, they should be the same or close.....

I did some checking at several spots last Sunday, and in the same spot,with my 3 units,,

AT Pro w/5x8 coil GB number was 83

AT Pro w/the 4.5" coil, GB number was 83

AT Gold w/the 5x8 coil, GB number was 54

Now you can see on the charts below,,the ground was the same,


AT Gold

Typical Ground Balance Ranges:
65 to 99: Highly ferrous (ferrous oxide minerals, black sands,
magnetite, hot rocks)
50 to 65: Highly ferrous, slightly conductive (hot rocks, terra
cotta)
30 to 50: Moderately to highly ferrous (red and iron-bearing
clays, most terra cotta, hot rocks)
0 to 30: Light to moderately mineralized (brown and yellow
clays, etc.)
________________________________________________
AT Pro

Typical Ground Balance Ranges:
80 to 99: Highly ferrous (magnetite, ferrous oxide minerals,
black sands, hot rocks, terra cotta)
60 to 80: Moderately mineralized soils (red clay, brown clay,
iron-bearing clay minerals, etc.)
20 to 60: Likely an iron object
0 to 20: Highly conductive, non-ferrous minerals such as
saltwater

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Hope this helps....
BJ

 

[LaRelic]

Thanks! Will give it a try and see what happens.

 

[BJ in Okla.]

n/t

 

[John-Edmonton]

n/t