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VDI at depth

May 16, 2022 09:18AM
My interest is old coins, meaning Wheats or earlier cents, semi-key and key date Jeffersons and earlier, and pre-1965 silver for the higher denominations. (19th Century coins offer many more denominational choices but for me so far, sites with those possibilities are either permissions or ghost towns, not typical public sites as you are asking about here.) The remainder of this post only concerns those targets.

My comparison detectors (based upon experience) are two Fishers (Gold Bug Pro and F75) and the Minelab X-Terra 705. All of these are single frequency. The Equiox's multifrequency options are where I notice the difference.

Around here (Southern Indiana) where the glaciers didn't reach, the soil is moderately mineralized (2-3 bars on the Fishers' mineralization meters). In the 4-5 inch depth range the single frequency detectors' VDI's suffer, rather quickly (it seems) getting driven into the ferrous zone. The Equinox, OTOH, has a broadening of VDI but the centroid (mean, median, etc.) stays rather true. My deepest finds (only small coins -- cents, dimes, and nickels) have been from 8" depth and those gave reliable VDI's.

Another plus for the 11" stock coil on the Equinox is good separation. Since I've never touched a Deus (and only seen one from a distance) I can't compare it to those which are famousthinking for good separation. I'm new to concentrics so can't compare there, either. But for the detectors I've mentioned above and when using similarly sized coils, the Equinox seems to have a noticeable advantage in separation abilities.
Subject Author Views Posted

How many feel the EQ-800 has benefitted their Coin Hunting?

Monte 677 May 16, 2022 07:55AM


Utmike 442 May 22, 2022 12:07AM

Great answer. Fun and enjoyable are the key. N/T

Monte 365 May 22, 2022 07:51AM

Re: How many feel the EQ-800 has benefitted their Coin Hunting?

diggindeep 500 May 16, 2022 09:53AM


UtahRich 469 June 02, 2022 11:00AM

Rich, my next detector acquisition will be ....

Monte 428 June 02, 2022 09:38PM

I'm not getting better like I hoped, and Rich, ...

Monte 305 August 20, 2022 06:36PM

Re: 800

jmaryt 462 June 02, 2022 07:42PM

true love -

UtahRich 434 June 02, 2022 11:20PM

Re: true love -

jmaryt 506 June 11, 2022 08:37PM

Taking Aim

UtahRich 244 August 12, 2022 11:58AM

Re: Taking Aim

jmaryt 292 August 12, 2022 06:50PM

I've never found most of the dirt in Utah to be all that challenging.

Monte 419 May 16, 2022 05:03PM

VDI at depth

GB_Amateur 470 May 16, 2022 09:18AM

I've never been a big proponent for 'depth'.

Monte 414 May 16, 2022 04:32PM

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