3 hours with the Tarsacci today

Iain uk_history_uncovered

Suffolk UK

Joined Sep 29 2020

Posted on October 10, 2020 @ 12:04 PM

Hi Guys, 

I managed to get out with the Tarsacci today for about 3 hours. I was going to save it until tomorrow as the weather's better, but saw a small window of no rain for a few hours so bit the bullet and went on a local field. 

Although I didn't find anything to note, I did manage to try and familiarise myself with the audio and nuances. I did get caught out with a couple of deep bits of iron but being a quiet field I was taking a gamble on some of the more 'iffy' 50/50 signals.

Am I right in saying that most decent targets will come through decent two way whether faint or loud? Most of the non ferrous targets I did get stood out pretty much, and most gave a positive single left to right and on the 90 degree.

Today was just to get the feel for the audio, the non ferrous targets were just a bonus. 

I'm out tomorrow again on a busy site that I'm hoping will produce some hammered and Roman so fingers crossed for something nice and some more good hours getting familiar with it.

Today I switched between 

Disc mode 

18khz 

Disc - 30

Sens 6

Salt 25

Trh - 2

Volume 15

Gb came in around 600-631

 

I also used 

Mixed mode 

18khz

Disc 0 

Sens 6

Salt 25

Trh - 2

Volume 15 

Gb 600-650 

 

Both ran very stable (even in stubble) and to be honest I'm torn between which mode I preferred as they were both very good. 

Any pointers greatly appreciated and hopefully I'll have something to post tomorrow. 

 

Many Thanks 

 

Iain 

 

Dave.H

South West UK

Joined Jul 14 2020

Posted on October 11, 2020 @ 2:28 AM

Hi Iain,

Thanks for the report, very good!

It will be very interesting to see how different you setup the Tarsacci for your busy site?

Good luck for a Hammered! I've found a lot with mine so far!

Dave.

Aaron

TOP MOD
Michigan

Joined May 20 2020

Posted on October 12, 2020 @ 11:12 PM

Lain,

I’ve found the vast majority of ((good)) targets are have 2 way hits while one way hits in the high conduct range tend to be iron. In the low conductor range I’ve found the 1 way hits end up being the larger pieces of foil. I’ve had good targets masked by iron and I’ll still get a 2 way hit however tone gets a little broken up but it’s still coming through and it’s there. 
Your setting look good except the salinity, looks pretty low for 18khz, you should have it at least in the high 30’s to mid 40’s

Good report!

Aaron

Iain uk_history_uncovered

Suffolk UK

Joined Sep 29 2020

Posted on October 13, 2020 @ 1:01 AM

Thanks Aaron, 

That's interesting with the Salinity setting running high. Is there any reason for this at all? I did a true salinity balance to see where abouts thr soil started sounding off and I could totally lose it at 18. This particular site isn't very mineralsed. Does running a higher salinity balance improve performance or enhance signal quality etc?

Many Thanks 

 

Iain 

 

Aaron

TOP MOD
Michigan

Joined May 20 2020

Posted on October 13, 2020 @ 1:17 AM

Lain,

If you have the salt at 25 because you’ve done a salinity balance to stabilize the machine due to high mineralization, and you dont have small pieces of low conductors like foil that’s fine. Setting the salinity around 43 in 18khz really helps break up and eliminate that small low conductor junk.

 

Aaron

Iain uk_history_uncovered

Suffolk UK

Joined Sep 29 2020

Posted on October 13, 2020 @ 5:46 AM

Thanks Aaron, 

I get what you're saying, thanks for the heads up. Unfortunately over here in the UK some of nice finds like ancient fine jewellery and some very small thin section hammered coins can come in on the very low conductivity range so would there be a chance that running salinity too high could come at the cost of losing small low conductors?

Interesting thoughts.

 

Many Thanks 

 

Iain 

Aaron

TOP MOD
Michigan

Joined May 20 2020

Posted on October 13, 2020 @ 7:22 AM

Lain, I understand your concerns....

However, have you bench tested your your Tarsacci w various pieces of gold jewelry ranging in sizes and in karat grades? Or, how about various hammered coins ranging in different sizes? If you haven’t....you NEED too! I’ve tested MANY pieces of SMALL gold jewelry and I have yet to find one the Tarsacci cannot pickup in 18khz w the Salinity set at 43. And I’m talking about rings and earrings weighing less .05 gram! Now here’s something to think about. Gold, when it’s in its purest form is going to be more conductive, A LOT more! For example, most small gold jewelry (.5-2.grams) is going to read 5. However....a 1 gram nugget of pure unrefined gold (thank you Steve Herschbach!) is going VDI at 8-10. Isn’t the ancient gold your looking pretty much at least 22k?  Now, regarding hammered coins...... I like most Americans know very little about them, however I’ve made it my business collect a bunch of them of various sizes and from various places in Europe. They ALL have one thing in common, they VDI @ 5-6, Salinity @ 43, and the smallest one I have and probably the smallest there is (correct me if I’m wrong) the English farthing. 
Check this video out, do a screen shot of the TARSACCI’s screen and then zoom in and see what I have the Salinity set at. Now Lain, start testing.....

Aaron

Aaron

TOP MOD
Michigan

Joined May 20 2020

Posted on October 13, 2020 @ 7:27 AM

Lain,

Again, here is another video demonstrating what proves my point and that should be of interest to you mates over there.....

Enjoy! 
 

Aaron

Iain uk_history_uncovered

Suffolk UK

Joined Sep 29 2020

Posted on October 13, 2020 @ 12:23 PM

Thanks Aaron, great info and videos 👍

Many Thanks 

Iain 

Dave.H

South West UK

Joined Jul 14 2020

Posted on October 13, 2020 @ 1:57 PM

Aaron, great videos, truly demonstrates the unique capabilities of the Tarsacci!

Iain,   

I personally came to a point where I became so accustomed to the Tarsacci behaviour/ nuisances, I just then started playing  and experimented with every imaginable setting one could possibly think of, it's great fun believe me,, your most probably not far away from this point  now I would guess?

As Keith quoted on this forum, I believe on Tarsacci Talk ,,,,  Keith said ,,, with the Tarsacci, and its NEW technology ,,its no Minelab, Whites, Garrett, Tesoro, and can also add,,,, its no Xp Deus either!!!...... (its new technology,, we've got to forget VLF)).. So, I've been playing of late,,,,, mostly Salinity & Ground Balance,, (both set high in iron infestation),,,,,, I'm sure here in the U.K. ,, indeed for inland searching busy sites,,, Trh..-4 -5 even -6 seem to be perfect,, sensitivity,,, 5, 6, perhaps 7 again seems to go to settings!... However,,,,,,, SB,, & GB,,, I believe this is where the Tarsacci can conjure up some even greater magic!!!.... 

Im hoping to get some time soon and do a new video , hopefully demonstrating these settings soon!

To conclude,,, don't be afraid of using high SB,,,,  & Higher GB in Iron infested areas,,,,, I will HELP! .......(just don't overpower the Trh)

Dave.

 

Iain uk_history_uncovered

Suffolk UK

Joined Sep 29 2020

Posted on October 14, 2020 @ 2:36 AM

Hi Dave, 

Thanks for the heads up, I'm hoping to get back out at the weekend and will be having a play about with different settings. 

You've hit the nail on the head there too, it's getting the fact it's different tech and not VLF into your head and not being afraid to experiment isn't it.....

Can I just ask also, have you had much time in the field using 9khz? I just wondered whether it still retains some of the sensitivity to the small stuff? Bearing in mind this is a totally new bit of tech isn't it. We take for granted the higher frequencies being more sensitive to smaller targets dont we, but a lot of the older VLF machines used to use 7-8khz didn't they. 

 

Many Thanks 

 

Iain 

Dave.H

South West UK

Joined Jul 14 2020

Posted on October 15, 2020 @ 9:45 AM

Iain, correct, I believe most of my early detectors ran around 6-8 KHZ,,, happy days!

Back to the Tarsacci, indeed I've tried all frequencies, 18K seems to be a very good "all round" setting, I'm constantly amazed by the depth.   9K is also very good at hitting smaller targets, i.e. easily hits the primers from shotgun cartridges, it works very well unmasking amongst Iron!,,, maybe 18K just has the edge in heavy iron?.... we've become accustomed to believe that higher frequencies can loose depth, but no so apparent with the MDT using 18K........ I know this is "old school " but when you get a faint signal,,, experiment,, go through all the frequencies, I do this often, I'm discovering that different sites, seem to like different frequencies, Tarsacci is the most intelligent detector I've ever used, more I experiment the more I love it,,,, Dimitar, the designer has developed something very clever with this new machine!... I applaud him!

Dave.

Rivers rat

UNITED KINGDOM

Joined Sep 28 2020

In reply to by Dave.H
Posted on October 17, 2020 @ 5:34 AM

Dave thanks for the report i will try on the Thames on 18khz......i have a lot of machine who all deliver different results on the Thames ,but i can't wait to try the MDT

 

 

 

RR

Dave.H

South West UK

Joined Jul 14 2020

Posted on October 17, 2020 @ 4:08 PM

RR.

If am correct in thinking,,, that your only allowed to dig to a given maximum depth whilst Thames foreshore larking??

If this applies,,, I would also  recommend a high threshold,, (7/8).....Low Sens,,, (5/6)... and go very high on GB! 950 and above,,SB ,, (43).....  this will undoubtedly help in unmasking! ....... good luck 👍

Dave.

Rivers rat

UNITED KINGDOM

Joined Sep 28 2020

In reply to by Dave.H
Posted on October 17, 2020 @ 5:38 PM

Thanks for the setting i am allowed to 1.2 meter and a bit more ,i got a special licence 👦

 

RR