Ground balancing issue

[Wilderness medic]

Brand new to detecting. After putting in a solid 7 hours and 5 miles today I came home and played with some pickers I have from sniping. I noticed even when directly under the coil the constant threshold changes only ever so slightly. I watched the dvd that came with my minelab 705 which showed the same thing. The only thing that makes it “scream” is a large piece of gold pretty much on the surface.


Having seen this after a day of detecting I feel like I could have been over 50 pieces and kept going. The slight changes in the pitch for deep gold and small gold seemed to happen to me all day. Is this a ground balancing thing? I pressed the tracking button and moved it up and down but it still constantly throws pitch changes over everything. Even regular rocks that stick up an inch or two.


Many times throughout the day I had “hits” but the seemed to disappear once I tried to pinpoint it. I felt like I was chasing moving Pieces.

Any ideas how to fix this? If small and deep gold is that faint I’ll never find it with my detector constantly changing pitches over everything. I tried recalibration it with the tracking button multiple times.

 

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[Terry Soloman]

Which coil do you have on your 705?

 

[Wilderness medic]

Which coil do you have on your 705?

18.75khz double D

 

[Wilderness medic]

Another question to (hopefully) keep me motivated to go out again if I can’t get it better....


If I’m finding small piece of lead 1/4-1/2 the size of a .22 bullet is it safe to say that those pieces could have just as easily have been gold? Or is lead easier to find as far as the threshold changes go.

 

[Terry Soloman]

Yep, if you are finding small lead, you'll find gold as well. They sound exactly the same.

 

[Wilderness medic]

Yep, if you are finding small lead, you'll find gold as well. They sound exactly the same.

Hey thanks a lot for that video! Bad internet, just saw it pop up. That helped a lot. Apparently I wasn’t groundbbalancing it. I thought the tracking button with squiggly lines did that.


If it wasn’t for the civil war era button I found I’d think I wasted a day. Man was I off... “should sound like a faint mosquito and the faintest change is a target....” All day was non stop wheeeeweeewe and only the extremely distinct high pitches were locatable

 

[against the wind]

Hey thanks a lot for that video! Bad internet, just saw it pop up. That helped a lot. Apparently I wasn’t groundbbalancing it. I thought the tracking button with squiggly lines did that.


If it wasn’t for the civil war era button I found I’d think I wasted a day. Man was I off... “should sound like a faint mosquito and the faintest change is a target....” All day was non stop wheeeeweeewe and only the extremely distinct high pitches were locatable

No such thing as " I wasted a day"
We all spent a lot of time trying to learn the machine we are working with. Keep at it.

 

[A2coins]

Lots of advice on here good to ask

 

[A2coins]

Welcome from MI Tommy

 

[Professor of Engineering]

The Minelab 705 is a very good machine, very sensitive to gold with the high frequency coil!

Good Luck with your new machine! Watch Youtube videos and read the manual.

 

[Icewing]

You need to ground balance it with the sensitivity turned up on the cleanest patch of ground you can find, set your threshold as low as you can and still barely hear it, and in my opinion leave the ground tracking off.

It's not a super complex machine but definitely takes time and effort to really get good with it.
The more you use it the better you will get at using it.

In the right hands it's 10x the machine an AT-Pro ever thought about being, it's just not waterproof.

Stick with it, and good luck.