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ON THE HORIZON = MDT-8000

Posted by NASA-Tom 
Re: ON THE HORIZON = MDT-8000
April 09, 2019 12:41PM
Heres a couple of recent finds...... ive had the machine just a little over 2 mos. But.... a death in the family, the flu and other issues keep me away from the beach a good 3 weeks. Looks like if i havent paid for this machine im awfully close. That 14k was an interesting find. I hit it in shallow water and sounded really shallow...... 5 digit. I watch 4 and 5 digits especially. I PPed...... took a small scoop off..... nada.... still there. So..... having done this before i must have circled the hole a dozen times to see if i was being fooled...... nope right there in the middle.... AGAIN. BUT..... it still ended up being one of those that stayed in place after digging a hole to China. Another one of those ive got both feet on each side of the hole.....ugh. Thou it doesnt sound like it...... my PPing with this machine has been pretty good....... but i keep running into these exceptionally deep ones. After the first scoop ..... if its still there i take extra care in trying to properly locate the target as well as not over dig. These water machines pay for themselves, especially the deep ones. This is about a $325 melt couple of days...... and 15 golds so far ive shown using the MDT. The beaches i hunt are popular...... i was telling Cliff the other day i saw a total of 13 hunters.... most was in the wet or dry sand. Got a new club in the area now ...... so its even busier.... and they like their Noxs.







Edited 2 time(s). Last edit at 04/09/2019 12:51PM by dewcon4414.
Re: ON THE HORIZON = MDT-8000
April 09, 2019 01:39PM
Very nice Dew, sounds like your getting a workout w that 8000!

Daniel - Glad you were able to get Chris’s 8000, find some deep relics in his memory and let’s see some videos!

Aaron

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]



Edited 1 time(s). Last edit at 04/09/2019 01:41PM by Aaron.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 06:20AM
TNSS -- Thanks a bunch!! I sent those to Chris's brother and he said it should help them tremendously. I had only saw the unit itself and the headphone pigtail so I didnt even know what the charger or cable looked like. Chris's family is trying to round all of it up so he can meet me and buy it. He's kinda playing the middle man.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 09:15AM
Daniel Tn Wrote:
-------------------------------------------------------
> TNSS -- Thanks a bunch!! I sent those to Chris's
> brother and he said it should help them tremendous
> ly. I had only saw the unit itself and the headph
> one pigtail so I didnt even know what the charger
> or cable looked like. Chris's family is trying to
> round all of it up so he can meet me and buy it.
> He's kinda playing the middle man.


You are welcome.
You’ll be ready for those coastal visits this summer using Tarsacci.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 12:29PM
Carolina Wrote:
-------------------------------------------------------
> Gary in Daytona Wrote:
> --------------------------------------------------
> -----
> > Carolina Wrote:
> > ------------------------------------------------
> --
> > -----
> > > I have a new pair ( never outside my living ro
> om
> > )
> > > of Tony Eisenhower MSA waterproof phones for t
> he
> > T
> > > arsacci. Only tested in my living room. I am n
> ot
> > a
> > > fan of the piezo’s. I prefer speakers.
> > > They are identicle to the ones Dew posted earl
> ie
> > r.
> > > PM me if interested. Paid $190 asking $170 shi
> pp
> > ed
> > > in US only please.
> > >
> > > Carolina
> >
> >
> > Do they connect directly to the Tarsacci, or do
> yo
> > u still need the pigtail. Or post a photo of con
> ne
> > ctor?
> > (I see they’ve sold but would still like to know
> f
> > rom someone who bought a pair. Couldn’t find the
> p
> > ost that was
>
> They have the waterproof M8 connector and are full
> y waterproof. The M8 connector sends the cable ove
> r the shaft unlike the supplied pig tail that send
> s the cable straight down. Much nicer in my opinio
> n. Quality built phones 100% water proof.


Thanks. I’ve rigged my Nox phones to work on the MDT8000 and although they will “work”, the phones don’t quite gender up correctly, I had to set them just right in the pigtail plug and wrap with waterproof tape. Sounds bad, but it worked. Good to hear he’s making them for the T’sacci now. May contact him when I get my next $$ windfall. Then start saving money for the Aquapulse... the beat goes on... love that.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 05:48PM
From some the posts back in the beginning, I've been under the assumption that the Tarsacci is not 100% waterproof. Has anybody been submerging the unit for long periods?
Re: ON THE HORIZON = MDT-8000
April 10, 2019 06:08PM
Badger in NH Wrote:
-------------------------------------------------------
> From some the posts back in the beginning, I've be
> en under the assumption that the Tarsacci is not 1
> 00% waterproof. Has anybody been submerging the u
> nit for long periods?

Couple quotes here from page 33 of this thread.
IP rating is on battery cap.

Carolina Wrote:
-------------------------------------------------------
> Apolonio (CA) Wrote:
> --------------------------------------------------
> -----
> > ShovelNose Wrote:
> > ------------------------------------------------
> --
> > -----
> > > Are you water hunters submerging the head of t
> he
> > u
> > > nit? If so for how long. Mine got a tiny bit
> of
> > m
> > > oisture under the screen by rinsing in the out
> do
> > or
> > > shower. Demitar was great and sent me a loaner
> t
> > o
> > > use while mine was being repaired. It was a lo
> t
> > mo
> > > re sensitive to EMI and I found by backing off
> t
> > o
> > > 2 sometimes -3 on the threshold would calm it
> do
> > wn
> > > . I use 18k but seeing the success of using a
> lo
> > we
> > > r freq. I am going to experiment with that see
> in
> > g
> > > it seems to be less effected than the higher o
> ne
> > s.
> > > Mine will be back Saturday and will be out wit
> h
> > it
> > > on the beaches as soon as possible. Looks like
> m
> > id
> > > week. I've taken on some large electrical jobs
> a
> > nd
> > > just can't seem to say no when they wave the g
> > > backs at me. The growth in Horry County is un
> be
> > li
> > > evable. JR
> >
> > Hello JR,
> >
> > That’s great Dimitar sent you a loner, bummer f
> or
> > the leak but it’s good to hear Dimitar is taking
> c
> > are of the issue. Haven’t dunked the Tarsacci y
> et
> > , read somewhere 10 minutes is max? Could be wro
> ng
> > , hopefully at least for 10 minutes. Going water
> h
> > unting soon, both fresh water and ocean wet sand
> .
> >
> > Using 18khz will enhance interference or reduce
> st
> > ability in some areas, 12khz seems to work well
> f
> > or me in my area and even 12khz gets the tiny ta
> rg
> > ets. Have tried 18khz several times, really no i
> ss
> > ues using it but I’m trying to get the deeper hi
> gh
> > conducive targets too at the relic sites so 12kh
> z
> > works for me.
> >
> > Good luck,
> > Paul
>
> Paul, Tom told me 30 min.s max submersion at 1 1/2
> meters with 24 hours between submersions. I have n
> ot submerged my unit as of yet.
>

> Carolina


Apolonio (CA) Wrote:
-------------------------------------------------------
> Thank you Carolina,
>
> You’re correct, 30 minutes max, was on the
> phone with Dimitar yesterday. He confirmed 30 min
> utes, that’s great news.

>
> Hopefully, we’re suppose to head up to gold county
> . I’ve invited Dimitar to hunt an old 1850’s gold
> town settlement, will be fun and an opportunity to
> test the Tarsacci on mineralized soil.
>
> Appreciate the help smiling smiley
> Paul



Edited 5 time(s). Last edit at 04/10/2019 06:16PM by tnsharpshooter.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 06:45PM
I believe Tom mentioned it was the speaker which was more of the concern not the cap. But ....I’m very careful when I enstall mine. I inspect the O rings....and the cap....just like any other machine where I open it and it goes in the water.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 07:19PM
That's right. I remember that post now that you mention it.

So most of you guys are just hunting in knee deep water. I've always thought of water hunting as being chest deep and submerging everything. When I said a while back that nobody water hunts the beaches up here, that's what I was thinking it meant. We wade in the water with our beach machines all the time in the summer, sometimes just to cool off, but only out to knee deep or so.

.



Edited 2 time(s). Last edit at 04/10/2019 07:23PM by Badger in NH.
Re: ON THE HORIZON = MDT-8000
April 10, 2019 11:04PM
Got my fingers crossed on this machine...... and some improvements id like to see.
Re: ON THE HORIZON = MDT-8000
April 11, 2019 01:25AM
Badger in NH Wrote:
-------------------------------------------------------
> That's right. I remember that post now that you me
> ntion it.
>
> So most of you guys are just hunting in knee deep
> water. I've always thought of water hunting as bei
> ng chest deep and submerging everything. When I sa
> id a while back that nobody water hunts the beache
> s up here, that's what I was thinking it meant. We
> wade in the water with our beach machines all the
> time in the summer, sometimes just to cool off, bu
> t only out to knee deep or so.
>
> .
I believe there are some who are submerging their machines. Maybe they don’t want to advertise it for some reason. I was told OK to submerge so I plan on doing so when water temps rise just a bit more. When I do I will post the results.

Carolina
Re: ON THE HORIZON = MDT-8000
April 11, 2019 04:00AM
I talked with Dimitar this evening, according to him (as stated in the previous post), yes the 8000 can be submerged, up to 1.5 hrs, but not for scuba diving.

For those of us who are just wading (like myself) and the box is most of the time above water it’s not gonna be a problem.

Aaron

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]
Re: ON THE HORIZON = MDT-8000
April 11, 2019 09:11AM
Aaron...….. that's 1.5-Meters (at 1/2-hour). IP68
Re: ON THE HORIZON = MDT-8000
April 11, 2019 10:04AM
Long day yesterday, didn’t talk to him till late last night. Just like me get my details mixed up.

Aaron

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]
Re: ON THE HORIZON = MDT-8000
April 11, 2019 07:07PM
Not a problem!
cdv
Re: ON THE HORIZON = MDT-8000
April 13, 2019 05:20PM
I know there are others that have recently bought the MDT, having trouble understanding why no further chatter about this machine. The more I use it the more I'm falling hard for this machine. I've got an Equinox and a CTX gathering dust now, something about the MDT that just clicks for me and I know I haven't got the final tweaks done to it, yet it continues to impress.

One thing that is amazing is the battery life on this machine. Somewhere around 17-20 hours on a battery and I'm still showing 3 bars and 3.6 volts, that is the point I normally change the battery and charge the somewhat depleted one.

Took the wife to the beach today and while she took a walk, I took the MDT out. Less than a two hour hunt and only 12 non ferrous targets (bad day) 7 square tabs, 2 ring pull tabs, 2 clad dimes and this piece of yellow.





Water find, waist deep, two scoops. TID was bouncing and I really thought it was another deeper square tab (number kept coming back to about 7). Settings 9KHz, Salt 30, Black Sand off, Threshold -1 and Sensitivity 7.

Trying to catch up to you Dew!

Cliff
Re: ON THE HORIZON = MDT-8000
April 13, 2019 05:29PM
cdv Wrote:
-------------------------------------------------------
> I know there are others that have recently bought
> the MDT, having trouble understanding why no furth
> er chatter about this machine. The more I use it t
> he more I'm falling hard for this machine. I've go
> t an Equinox and a CTX gathering dust now, somethi
> ng about the MDT that just clicks for me and I kno
> w I haven't got the final tweaks done to it, yet i
> t continues to impress.
>
> One thing that is amazing is the battery life on t
> his machine. Somewhere around 17-20 hours on a bat
> tery and I'm still showing 3 bars and 3.6 volts, t
> hat is the point I normally change the battery and
> charge the somewhat depleted one.
>
> Took the wife to the beach today and while she too
> k a walk, I took the MDT out. Less than a two hour
> hunt and only 12 non ferrous targets (bad day) 7 s
> quare tabs, 2 ring pull tabs, 2 clad dimes and thi
> s piece of yellow.
>
>
>
>
>
> Water find, waist deep, two scoops. TID was bounci
> ng and I really thought it was another deeper squa
> re tab (number kept coming back to about 7). Setti
> ngs 9KHz, Salt 30, Black Sand off, Threshold -1 an
> d Sensitivity 7.
>
> Trying to catch up to you Dew!
>

> Cliff

Congratulations Cliff,

And 18k even better! glad to see others like you doing well. Yeah! Dew is doing great!

I agree, MDT has me scratching my head just keeps surprising me.

Congrats!
Paul
Re: ON THE HORIZON = MDT-8000
April 13, 2019 05:53PM
cdv Wrote:
-------------------------------------------------------
> I know there are others that have recently bought
> the MDT, having trouble understanding why no furth
> er chatter about this machine. The more I use it t
> he more I'm falling hard for this machine. I've go
> t an Equinox and a CTX gathering dust now, somethi
> ng about the MDT that just clicks for me and I kno
> w I haven't got the final tweaks done to it, yet i
> t continues to impress.
>
> One thing that is amazing is the battery life on t
> his machine. Somewhere around 17-20 hours on a bat
> tery and I'm still showing 3 bars and 3.6 volts, t
> hat is the point I normally change the battery and
> charge the somewhat depleted one.
>
> Took the wife to the beach today and while she too
> k a walk, I took the MDT out. Less than a two hour
> hunt and only 12 non ferrous targets (bad day) 7 s
> quare tabs, 2 ring pull tabs, 2 clad dimes and thi
> s piece of yellow.
>
>
>
>
>
> Water find, waist deep, two scoops. TID was bounci
> ng and I really thought it was another deeper squa
> re tab (number kept coming back to about 7). Setti
> ngs 9KHz, Salt 30, Black Sand off, Threshold -1 an
> d Sensitivity 7.
>
> Trying to catch up to you Dew!
>
> Cliff


Man that’s nice chunk of au Cliff, CONGRATS!

I’m still in the early learning stages w the MDT, trying get used to the language.

Aaron

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]
Re: ON THE HORIZON = MDT-8000
April 13, 2019 06:37PM
*



Edited 1 time(s). Last edit at 04/13/2019 10:27PM by dewcon4414.
Re: ON THE HORIZON = MDT-8000
April 13, 2019 06:48PM
Now that I know Cliff’s wife is his good luck charm.....I may have to pay her off...lol. Hey I’m just glad Cliff is a few hours away..... man knows how to hunt. Then he’s at least a head taller than me. So when he put on that snorkel....I’m at a real disadvantage. Don’t let him fool ya he gets his share of what’s out there. Those 18k ..... now that’s a real good day Cliff. I know it’s not what Dimitar wants to hear....but it’s nice not having everyone out there with this machine. I tweak the settings sometimes...but for the most part they run as is. Like I’ve said...I’m digging I know PI depth on some of my finds. Main thing is coil control I think. I know Cliff...he will get rolling once Summer starts with people in the water.
cdv
Re: ON THE HORIZON = MDT-8000
April 13, 2019 10:24PM
Hey guys, thanks for the comments but I wasn't looking a pat on the back as much as I was hoping to jumpstart this thread again. Hoping some of the newer owners would share their thoughts on the MDT as well as any nuances they have experienced with the machine.

Cliff
Re: ON THE HORIZON = MDT-8000
April 13, 2019 11:47PM
Very nice find Cliff.
Re: ON THE HORIZON = MDT-8000
April 14, 2019 03:10AM
Is there anyone using the MDT in fresh water? Only just got mine last week, had it in the water 2xs now. Most of my water hunting is in a a old lake w over 100 years of activity, there’s a lot of iron there due to a old dock there used to be on beach. Dimitar suggested I run in salt to deal better w the iron. I’ve been doing that and running sensitivity about 7 and disc in 1, threshold-1. Disc mode, no tracking.

Aaron

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]



Edited 1 time(s). Last edit at 04/14/2019 03:51AM by Aaron.
Re: ON THE HORIZON = MDT-8000
April 14, 2019 04:04AM
Aaron Wrote:
-------------------------------------------------------
> Is there anyone using the MDT in fresh water? Only
> just got mine last week, had it in the water 2xs n
> ow. Most of my water hunting is in a a old lake w
> over 100 years of activity, there’s a lot of iron
> there due to a old dock there used to be on beach.
> Dimitar suggested I run in salt to deal better w t
> he iron. I’ve been doing that and running sensitiv
> ity about 7 and disc in 1, threshold-1. Disc mode,
> no tracking.
>
> Aaron


I have run mine in freshwater some. Have run in heavier iron sites too on dry land. My advice if iron moderate to heavoer run 18khz. I haven’t played with salt setting in iron just yet. This week I plan on doing though, Sens 7 in iron could be a bit hot. For me anyway. I like 6 better. Maybe if I hunted a place and hadn’t done much good I may go 7 on the sensitivty.
Re: ON THE HORIZON = MDT-8000
April 14, 2019 10:48AM
What are the tells of deep iron.......what have you found? Running in AM.... the machine is deep.... and fast. Near targets come on initially in the low digits but change the better you center the target. I like the way iron at least wraps around to the high digits...... unlike the Nox. So you can run that notch when going into disc. That tends to slow down the high pings over a non-ferrous target. If the digits continue to be reading high...... most of the time its really deep iron. But .... if you get digits dropping say in the penny range ... even a few its a tell to me.... ive found deep nickels and copper this way. Im still not sure im not walking over targets by moving to fast and not slowly listening to deep targets. Maybe switching phones to those with speaker which gives little difference in tones from weak to near targets would improve that for me. Those would have to be pretty deep targets from what i can tell thou. I scrub my coil so near iron reminds me of the CZ20..... you know you just passed over surface iron. Ive also found myself wanting to NOT dig a lot of targets beyond 14. because most of the gold ive found and tested falls in the 9 to digits..... with a few exceptions at 4 and 1... those being crosses and chains. A great many of the gold rings fell at 5 digit. i tested some pretty large gold rings. So for me there is a pretty good window to pay attention to if you are just gold hunting.
Re: ON THE HORIZON = MDT-8000
April 14, 2019 12:51PM
Aaron; yes. . . . I (so far) have found that running 'Salt' Mode around iron..... seems to give a bit better ID/resolution. This is to include inland/turf/dirt hunting. This also holds true with Black Sand Mode. But...… there have been a few times where this theory (and configuration) has not been true. I'm still seeking solid/concrete data...… then: the physics behind it. (The "why"...…. for present/future advancements). IF I 'understand' it...………… then...…………. I can (much) better apply it to real-world conditions..... much more readily (and successfully).
What's crazy is: There's a lot of DELIBERATE engineering that goes into a project; yet, there can be non-deliberate (unknown) side-effects in any design …..that present: attributes and detriments. Discover this. Then use wisely/accordingly.

Dew...…..... After 3-months; I finally have a answer for you. In a nutshell: The EQX loses 2.6" of depth on a Nickel with the coil submerged IN the saltwater...…. (versus the damp/wet-slope). It was the extensive amount of variables that made this time-consuming data: hard to acquire; hence, the 3-months. If the water was moving faster (horizontal velocity)..... there is greater depth lost. If the saltwater was splashing/crashing (via vertical velocity); a severe amount of depth performance is lost. Early morning(s) allowed a better chance of the ocean to present a bit more calm conditions...….. for the reduction of 'variables'...… so as to ascertain (overall) better aggregate collected data. . . . . . . . for greater/enhanced source-validity. This 2.6" number...…. is a mean-average. You will see/witness this more-so..... than I.,.,.,.,.,.,.,.,. due to your West Coast Florida bathtub conditions.
(((Probably stating the obvious))): The more 'calm' the saltwater: the greater the detection performance.
I have not tested the MDT yet (another large chunk of time-impositions)...…. to see how much depth it loses on a Nickel 'in-the-splash'..... and 'IN-the-water'. I know it does not lose as much depth/performance...…….. as you, Cliff, Tom & Larry have so discovered; via multi-scoop requirements; yet, I do not have exacting numbers. What we do know (now) is: The SMF VLF IB motion-Disc platform..... loses substantial depth performance with 'moving' saltwater.

Deep into: Geophysics
Deep into: Engineering Lab

(((Yes. I too.... am anxious to see if any advancement/discovery(s) have been made ….. with the Manta/Impulse...…. from a (usable) technological geophysics/engineering standpoint))).
Re: ON THE HORIZON = MDT-8000
April 14, 2019 01:37PM
Wow....... great info Tom. IF .... it stays consistent then..... that could mean that 3 gram gold ring might only be found about 7" deep out there with the Nox.... and thats if its setting flat. Ive also got to consider your skills. Can i assume from what im getting neck deep with all the chatter on the Nox and a different salt setting on the MDT that salt content and water movement might just have the same affect as in the splash and long shore drift? Now i really need a calm day with some clear water....... got to bury me a ring lol. Ooops went back and you said 2.6 inches on a nickel...... at what depth out of the water was that nickel being found in the wet sand?
Re: ON THE HORIZON = MDT-8000
April 14, 2019 02:27PM
Tnsharpshooter- yes I’ve been running in the 18khz, trying to find chains & earrings.

Dew- running in am just isn’t reasonable here, maybe in some areas. I know what you mean IRT iron and high numbers, figured that out. What I’m finding with real deep iron is it comes off sounds like a good target low to mid twenties and as I get down to around 12” it starts changing into the high iron numbers. I’ll try double checking the deep targets in am, maybe that would help.

Tom- ok thanks.

TARSACCI - “Digging deeper, BEHIND the competition!”
[forums.tarsaccisales.com]
Re: ON THE HORIZON = MDT-8000
April 14, 2019 02:46PM
Aaron....it might just be a matter of target position on your coil. As I move into a target it changes....like you said in the 2os maybe up scaling ....but the more the target is centered the better the ID. I had a tendency to wiggle targets to the front of the coils which didn’t always give the best/constant TID.
Re: ON THE HORIZON = MDT-8000
April 15, 2019 11:26AM
dewcon4414 Wrote:
-------------------------------------------------------
> Aaron....it might just be a matter of target posit
> ion on your coil. As I move into a target it cha
> nges....like you said in the 2os maybe up scaling
> ....but the more the target is centered the better
> the ID. I had a tendency to wiggle targets to th
> e front of the coils which didn’t always give the
> best/constant TID.


My experiences exactly, dew. The better you pinpoint and investigate the more accurate the ID is. Especially on the lower deeper targets. Sometimes when I’ve been out for several hours and I’m getting tired and ‘sloppy’ the IDs vary a lot. Operator error. She’s trying to describe what’s down there for me, I’m just not paying attention. That’s when I know it’s time to slow down or quit for the day.
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