Not Getting Clean Tones Except for the Shallowest of Targets

[flysar]

I live in an area along the Columbia River in WA/OR that has high mineralization. Many detectors struggle to give clean tones except on the most shallow targets unless running a single tone and using little to no discrimination.

I have used my Fors CoRe a little over 15 hours in parks, yards and woods. I GB anywhere from 86-89 and I may have been in the low 90's a couple times. I have dug only clad coins and every type of trash we normally encounter.

Regardless of machine I'm a clean tone hunter and refer to the ID as an idea of what I may be digging unfortunately with the Fors CoRe in Di3 the clean tones are few and far between with the exception of aluminum and the shallowest of coins. As an example, 2-3" coins were a little scratchy but because the numbers hung around the 80's I figured I better dig them. I figured maybe ferrous targets were affecting the tone but when the target was out of the hole there was no ferrous targets under the coil as checked by GEN mode. Sensitivity 85, Mask ID 23

When using Di2, with the same Sens & Mask ID & over the same targets, the mid tone sounds so much cleaner.

Is the mineralization trying to pull the high tone into the mid tone and the machine doesn't know whether to sound off with a mid or high tone regardless what the ID is showing?

Any setting suggestions to clean the tones up?

I'd really like to figure this unit out in my ground but right now I'm favoring my Tesoro Outlaw and CTX.

 

[greaser]

I am not sure on the issue but I GB around the same numbers and get clean tones right until they drop off depth wise. So my guess would be an issue with your machine.

 

[OregonGregg]

Flysar, if hunting a moderate to less trashy area, I would use 2-tones (Di2) The tone in Di2 is sharper and easy to hear. A good example is do the nail board test in 3 tones. Then try it again in 2 tones and in the 2 tone mode it really makes the penny pop/stand out more. I like 3 tone but in trashier sites you will get a mix of tones( the low, depending on where you set the disc, mid and high) and sometimes one tone will clip the other especially if the target is coming in at the tone break point between mid and high.

I realize you have some extreme soil in your area. Just for fun when you hit another target that is "scratchy" but still holds in the 80's, lower your disc say down to 10 or less and swing over it again and see if the tone clears up a bit. Given the extremely bad soil you have, 23 disc might be maxing it out .... When I was detecting on the Columbia River up stream from you in the Hermiston, Or. area, I hit a pocket of some of that black sand , volcanic stuff that you are trying to deal with, with the Red Racer, The Mineral % pie chart graph maxed out as well as the Ground Phase numbers. Needless to say it about stopped us in our tracks, I think I could have thrown a quarter on the ground and it wouldn't have detected it. I would try lowering my disc to as low as possible, as low as you can tolerate. I would think it might help in your soil conditions.

 

[Trashfinder]

My soil gb at 90 and I have clean tones.

 

[greaser]

Ah I missed the high disc you were running, I always run 10 disc it just seems to work better.

 

[flysar]

Thank you for all of the input. OregonGregg and I are going to try and meet sometime this month and do a comparison of units.