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Can't Register? Can't Log In? START HERE
Please read BEFORE contacting admins
Topics: 3
Posts: 3
Last Post:
Other Issues
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Announcements
Read this first before posting
Topics: 2
Posts: 2
Last Post:
Commercial vs Non-commercial posts
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| Inside the Metal Detector | ||||||||||||||||||
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ITMD1&2
Discussions concerning content, circuitry, source code, etc for the 1st & 2nd editions.
Topics: 59
Posts: 668
Last Post:
Adding tones to Raptor
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ITMD3
Discussions concerning content, circuitry, source code, etc for the 3rd edition.
Topics: 19
Posts: 528
Last Post:
ITMD3 is now available on Amazon
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19 | 528 |
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| Technology | ||||||||||||||||||
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Tech Forum
General tech discussions on all types of metal detectors: VLF, 2-box, BFO, off-resonance, PLL, etc. Questions, ideas, and anything else that moves you.
Topics: 5,517
Posts: 84,301
Last Post:
Detector choice on beach
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5,517 | 84,301 |
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PI Technology
Tech discussions specific to Pulse Induction
Topics: 392
Posts: 23,287
Last Post:
Hobby Hybrid MD1
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392 | 23,287 |
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Coils
Same as the Tech forum, but coil-specific.
Topics: 2,312
Posts: 24,597
Last Post:
Ground balance compensation coil
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Modifications
Detector mods, plus any other useful add-ons.
Topics: 755
Posts: 7,768
Last Post:
Tesoro - Make it deeper
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755 | 7,768 |
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Schematics
If you have a schematic to share, post it here. Please read the Intro post for rules on posting schematics.
Topics: 1,593
Posts: 30,355
Last Post:
“S”- tone discriminate metal detector.
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1,593 | 30,355 |
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General Detectors
A place to discuss the non-technical aspects of metal detectors. Your favorite detectors, favorite features, or favorite accessories.
Topics: 62
Posts: 1,269
Last Post:
whites Coinmaster 5500 D
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62 | 1,269 |
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Magnetometers
Tech discussions on mags.
Topics: 740
Posts: 4,151
Last Post:
Ivconic's new device
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740 | 4,151 |
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Technical Books, Papers, and Literature
Technical books, papers, and literature related to treasure hunting technology.
Any books written by Geotech members are made sticky at the top of the forum.
Topics: 12
Posts: 169
Last Post:
Inside the Metal Detector, 3rd Edition
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12 | 169 |
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Side Scan Sonar
Tech discussions on sonar, transducers, and towfish construction.
Topics: 873
Posts: 3,293
Last Post:
JW Fishers Pulse 12
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873 | 3,293 |
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Geophysics
Other geophysics techniques, including earth resistivity, GPR, infrared, induced polarization, etc.
Topics: 374
Posts: 3,353
Last Post:
Ivconic Magnetometer/Gradiometer
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374 | 3,353 |
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Tools & Techniques
Vacuum forming, coil winding, packaging... anything mechanical.
Topics: 204
Posts: 2,116
Last Post:
Terrain mapping
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204 | 2,116 |
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General Electronics
Cool circuits, tips, techniques, PCB methods, test equipment, etc.
Topics: 592
Posts: 5,878
Last Post:
OMG
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Programming
This is a special section dedicated to coding techniques, tips, tricks, methodology, programming various modules, MCUs, digital filters, etc.
Basically, anything code-related.
Topics: 50
Posts: 450
Last Post:
Default Settings w/Manual Switching
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50 | 450 |
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| Projects | ||||||||||||||||||
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Project Competition
Got a something in mind you would like to see designed? Post it here and see who can come up with the best solution.
Topics: 10
Posts: 607
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10 | 607 |
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Completed Projects
Projects that have been reasonably completed
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Active Projects
Projects that are currently being developed
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Abandoned Projects
Project that were never completed but may still have good info
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| Misc | ||||||||||||||||||
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Buy-Sell-Trade
Detectors, parts, electronics, and so forth. No dealer restrictions.
Topics: 1,063
Posts: 5,624
Last Post:
Ground Resistive Tomograph Scanner
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1,063 | 5,624 |
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Treasure Magazines & Books
Buy-Sell-Trade-Discussion specifically for treasure mags, books, & other publications.
Topics: 213
Posts: 456
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213 | 456 |
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Vintage & Collectable
Pics & info on vintage detectors, for those who like "the good ol' days" of digging everything.
Topics: 186
Posts: 1,018
Last Post:
Compass Judge 1 Automatic
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186 | 1,018 |
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Melbeta's Vintage Files
Unique vintage metal detector info donated by denizen 'Melbeta'.
Topics: 85
Posts: 579
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85 | 579 |
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Free Advertising
Those who have products & services they would like to advertise may do so here. Please read the Intro post.
Topics: 122
Posts: 135
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122 | 135 |
by Rama2389
02-10-2025, 12:48 PM
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Forum Issues & Feedback
Problems with the forums? Suggestions for improvements? Post them here.
Topics: 1
Posts: 3
Last Post:
Forum changes
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1 | 3 |
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| Offsite Forums | ||||||||||||||||||
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Advanced Metal Detecting Research Lab
Italian website run by Leonardo Ciocca.
Since 2009, a technical reference point. Objective and impartial to all lovers of the metal detector.
Topics: 0
Posts: 0
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Foro de la Asociacion de Detectoaficionados de Extremadura
Spanish metal detecting forum.
Topics: 0
Posts: 0
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Eric Foster's PI Tech Forum
at Findmall.com
Topics: 0
Posts: 0
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Pulsdetektor Forums
Tech forums dealing with the various Pulsdetektor projects. German only, Click Here for a BabelFish English translation.
Topics: 0
Posts: 0
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0 | 0 |
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Russian Metal Detecting forums
Lots of technical forums, but all in Russian. Click Here for a BabelFish English translation.
Topics: 0
Posts: 0
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0 | 0 |
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THunting.com
THunting.com is the former host for Geotech. These are general Treasure Hunting forums.
Topics: 1
Posts: 7
Last Post:
End of an era
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1 | 7 |
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LongRangeLocators.com
The world's largest forum dedicated to the discussion of LRLs and related devices.
Topics: 0
Posts: 0
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0 | 0 |
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There are currently 899 users online. 102 members and 797 guests.
Most users ever online was 9,312 at 04:42 PM on 04-26-2025.
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Hello guys. I apologize in advance if this has been discussed, but I couldn't find a topic. Has anyone made a coil with a built-in ground balance compensation coil?Today, 09:35 AM
-
Hello.
What characteristic(s) of a nail can cause it to false? The head, the elongated shape, the pointed tip? How much of a factor is the nail's orientation in producing a false or not?...Today, 03:54 AM -
Hi all
I need some recommendations for a best detector to use on beach.
I prefer detectors with microcontrollers and screen like feleezjoo or picknic4 .
but I can also build analogs also is pi better or vlf
waiting suggestions
thanksYesterday, 10:31 PM
-
Hello guys. I apologize in advance if this has been discussed, but I couldn't find a topic. Has anyone made a coil with a built-in ground balance compensation coil?Today, 09:35 AM
-
Hi all
I need some recommendations for a best detector to use on beach.
I prefer detectors with microcontrollers and screen like feleezjoo or picknic4 .
but I can also build analogs also is pi better or vlf
waiting suggestions
thanksYesterday, 10:31 PM -
Hi all MD enthusiasts! Now, I propose one more schematic of hybrid MD. This design is based on the schematic of DFBowers and previous my designs. First, this design uses ready search 15"x12"DD coil of SEF type. This avoid the manufacturing of the search coil - the hardest work for me and maybe...02-11-2025, 08:17 AM
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I just got myself a used DJI Mavic M1P drone. In mint condition.
I'm a total newbie at this stuff. A few years ago I had some cheap toy drone, it cost 70-80e then, it had no camera and none of the advanced options. It was a total disappointment.
After I broke all the glass around the house...Yesterday, 08:22 PM -
Hello.
What characteristic(s) of a nail can cause it to false? The head, the elongated shape, the pointed tip? How much of a factor is the nail's orientation in producing a false or not?...Today, 03:54 AM