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#1

XLOOX
Member
From: Inglewood Fault, QLD
Joined: 21 August 2019
Posts: 99
Member
08 November 2020 08:40 pm

Does anyone use the largest coil on their Kruzer/Multi Kruzer/Gold Kruzer - ie the 15x14ish DD coils - KR40 or GK40 ?

If so what is their experience - How does it handle mineralisation & does it significantly improve depth or is it just for covering more ground in parks,beaches etc?


1985-2005 Garretts ADS Deepseeker x 2- now THATS a slow learner !
2017-2021 Whites TDI SL 16V+Sadie, Makro Gold Kruzer, QED PL3+14x9 Evo, Elite18

#2

nesral
Member
Joined: 05 January 2015
Posts: 278
Member
08 November 2020 09:27 pm

I've used a 15x13" coil on both a Fors Gold and and same coil on my Red Racer, but only for beach work both Wet/Dry.
Better depth yes and definitely better coverage than the standard 11" coil. perfect

1 user likes this post: XLOOX

#3

XLOOX
Member
From: Inglewood Fault, QLD
Joined: 21 August 2019
Posts: 99
Member
29 January 2021 11:41 am

Just for completeness, in the end I bought a GK40.

Havent had a chance to use it too much, but in a goldfield ground balancing at GB75, I got the following depths under slate (mm):

GK24 coil GK40 coil
9.5x5DD 15.5x14DD
1gn test 60 30
0.5gAu coin 130 160
50c coin 190 315
Alu can flat 320 500

Pretty much as expected, just pleasantly surprised it picked up the 1gn test piece at all & that worked fine in the borderline high mineralisation.

It will be interesting to see how it goes when I finally get out to some heavily mineralised areas in winter.

Last edited by XLOOX (29 January 2021 11:43 am)


1985-2005 Garretts ADS Deepseeker x 2- now THATS a slow learner !
2017-2021 Whites TDI SL 16V+Sadie, Makro Gold Kruzer, QED PL3+14x9 Evo, Elite18

3 users like this post: limpalot, Goldpick, PhaseTech

#4

PhaseTech
Phase Technical
From: Adelaide, SA
Joined: 29 May 2014
Posts: 2,081
Phase Technical
08 February 2021 10:11 am

XLOOX, did you test in all-metal?

Like with any big coil on a VLF and particularly a high freq VLF, they shine in the lower mineralisation, but are held back more than the small coils in heavy iron. Be great to cover large areas of fluffy sand on the big tourist beaches that get lots of fresh drops. The big coil is still very sensitive to gold jewellery.

I think there is a big gap between the 10x5 and GK40. Would love an in between size, preferably solid coil, something like the 12x8" Evo.

A Gk40 demo is on my video plan for this year.


Agent for Minelab, Nugget Finder, Nokta & Makro, Quest, Detech, SteelPhase - Phase Technical Website

#5

XLOOX
Member
From: Inglewood Fault, QLD
Joined: 21 August 2019
Posts: 99
Member
08 February 2021 05:29 pm

Tested in Gen, 85 Gain, 8 Threshold, iSat 2, Tracking On, Vol 5. Those are my GK24 settings & I didnt optmise for the GK40. I will try that another time.

I just piled up dinnerplate sized bits of slate ex a surface working on top of targets until signal disappeared then swapped out top slate thickness until got a decent beep but no ID or just flickering ID.

Yeah, I figured the big coil is not really meant for high mineralisation but if it works good enough & goes a bit deeper than most VLF then maybe I can score in trashy areas that myself or others have previously worked over.

My thinking is pretty much in line with yours as per your post yesterday #9 Mt Crawford about trying different stuff on a proven area. Even if I can only get another couple of inches over most VLFs then that is still a lot of volume of dirt over a basketball court sized patch.

So far looks promising. I will be very keen to see your video.

Last edited by XLOOX (08 February 2021 05:47 pm)


1985-2005 Garretts ADS Deepseeker x 2- now THATS a slow learner !
2017-2021 Whites TDI SL 16V+Sadie, Makro Gold Kruzer, QED PL3+14x9 Evo, Elite18

1 user likes this post: PhaseTech

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