Detector Frequency, GB & Ground Mineralization

[earthmansurfer]

I have a T2 and am in Nuernberg, Germany. A typical reading in my area is a GB of around 50 to 60 and a Fe3O4 of 3 or 4 bars (.1 to .3). The ground is often loaded with Iron and also it contains clay, though there are some areas of sand. When the ground is better I generally find things deeper. In bad ground and with all the iron, I'm usually in the 4"-6" range. In fairness, it's hard to find clean soil in the area as WWII left behind lots in the ground...

I'm wondering if a lower frequency detector would do better here? (Perhaps I get me an Omega for the more mineralized areas.) The T2 seems very popular for those small silver coins in the UK and I wonder if that is partly due to their ground being not so mineralized?

Here is a post from Tom Dankowski on the subject:

The higher the mineralization......the more attenuation takes place with higher Freq units. Lower Freq units work better in high mineralization; yet, PI's will trump all.

If you have low/no mineralization.............then Freq selection takes on a different meaning/function. Since attenuation becomes a moot point; it would then become a choice for finding low conductors (utilizing higher Freq units).........................or high conductors such as silver and copper; you would then utilize a lower Freq unit.

In general; multi-Freq units will handle bad dirt a bit better; yet, the T2/F75 platform will parallel the performance of a CZ. If the dirt is quite bad; the multi-Freq Explorer's would be the optimal choice.....if ID is a absolute requirement. If not................then................once again....the PI's will trump all.

Multi-Freq units do NOT operate with the same performance..... as mineralization becomes heavier. They too....will lose performance/depth/ID accuracy...................just not as detrimentally fast as single Freq units. Single Freq units (in general) will be the first units to suffer...as mineralization increases.

 

[Hwy 395]

It makes sense.

I sold an Explorer a while back because I was tired of the slow recovery speed and weight. I bought a lightweight single frequency detector and noticed a significant loss in depth in certain areas. I think my ground out here is pretty mineralized, so maybe I should stick with the Explorer/E-trac type detectors. I don't know if single frequency is the way to go out here....