Brand New F75+

[GrantT]

Monte....appreciate the very generous offer to give you a call for help. Sorry, I actually just saw your post right now.

Problem appears to be solved (though have to test with the factory coil still to eliminate a factor).

Thanks to everyone!!!

 

[miserman]

Coincidentally, I had ordered a MGC 5x8 sniper coil and it arrived here in the office this morning. Based on the advice of miserman, I pulled the batteries for a while, but I also put on the new coil.

Ground balanced immediately (46) after reassembly.

So, later I'll go back to the factory coil and try GB again as well. Battery pull might have done it! Will let you know.

Sounds like the stock coil may be faulty. You will know for sure when you put it back on. Might want to use the 5X8 for awhile and get to know the detector before switching back to the stock coil. Good luck.

 

[GrantT]

Just got back home and have tried BOTH coils, and neither wants to ground balance in my yard. VERY strange. Going to take a short road trip this evening and try some new ground...there has to be an explanation.

 

[WV62]

Went out to the field behind our office today at lunch (there is a sand volleyball pit and lots of grass) to do some testing, and first thing I noticed was that I was not able to ground balance.

As per the instructions/videos, I hold the detector coil up about 3' in the air, push the toggle switch forward (machine says "pump coil") but then after a few pumps up/down it comes back with the can't balance message. Tried it over sand and grass.

Any ideas? Factory reset and tried again....same thing.

Here is a picture out of my F75 manual, I am a little concerned about what you said above, holding the coil 3' feet in the air. I am thinking that was a typo, if not it could be your problem. Take a look at the picture and see if that is what you are doing.

Hope that helps,
Ron in WV

 

[GrantT]

Hey Ron,

Thanks for the suggestion. Sorry...no, 3' was sort of just explaining where I was initially holding the coil when getting everything started...I'm doing the ground balance from around 6" to 1" just like the instructions. Just poor wording on my part.

Did more testing tonight...and nothing will ground balance in my own back yard, but when I went to a remote abandoned yard nearby, I was able to ground balance without any issue with the stock coil - number was a 68 I think. Repeated it a dozen times and worked every time.

But, back home, nothing....was able to get a ground balance once, and it came in at 41...so very close to the 40 where the manual says it cannot work with.....so, I think it's just my yard.

Grant

 

[88junior]

Sounds like to me your yard probably has a lot of emi do you have buried underground utilities? Or possibly a underground electric dog fence?

 

[GrantT]

Could be EMI as I am in a townhouse environment, so lots of residences in a small area, but no, nothing in the ground except underground 120v runs to the garage...and they are about 3' deep.

I'll keep a close eye on things, but like I mentioned in a past post, I can manually ground balance following the instructions and it works...just very low numbers.

 

[WV62]

Hey Ron,

Thanks for the suggestion. Sorry...no, 3' was sort of just explaining where I was initially holding the coil when getting everything started...I'm doing the ground balance from around 6" to 1" just like the instructions. Just poor wording on my part.

Did more testing tonight...and nothing will ground balance in my own back yard, but when I went to a remote abandoned yard nearby, I was able to ground balance without any issue with the stock coil - number was a 68 I think. Repeated it a dozen times and worked every time.

But, back home, nothing....was able to get a ground balance once, and it came in at 41...so very close to the 40 where the manual says it cannot work with.....so, I think it's just my yard.

Grant

That's good to here at least you have ruled out a machine problem. My brother makes fun of me saying every detector I have ever bought has been broken right out of the box but after a few days they seem start working just fine.LOL

Most of the areas we hunt around here the GB comes in the 60's.

You take care and we got your back,

Ron in WV

 

[Mike Hillis]

Grant,
All that means is that you don't have any minerals in your dirt. That is sweet dirt.

Ground balancing is used to cancel the response of ground minerals. If you don't have much in the way of minerals in your dirt, then you don't even need to ground balance. Just use the preset and go.

Its pretty common in Louisiana and Florida but I didn't know you Canadians had any dirt like that.

HH
Mike

 

[GrantT]

Grant,
All that means is that you don't have any minerals in your dirt. That is sweet dirt.

Ground balancing is used to cancel the response of ground minerals. If you don't have much in the way of minerals in your dirt, then you don't even need to ground balance. Just use the preset and go.

Its pretty common in Louisiana and Florida but I didn't know you Canadians had any dirt like that.

HH
Mike

Who knows...it's a newer style townhouse and we have lots of lots of clay underneath about 2-3" of topsoil they ship in, and then lay a top of sod on it....so this is not "natural" terrain by any stretch.