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This is an Open Forum to discuss any metal detecting questions or subjects. Please feel free to discuss any metal detecting subject, in good taste and with due respect to all users. Thomas Dankowski frequents this forum and is happy to share his knowledge and experience about metal detecting to answer questions along with many other metal detecting experts who frequent this forum.
Please note that Dankowski Detectors now has Terms of Use provisions. Nothing has really changed, its just now everything is written down for the sake of those who in the past liked to argue. To view, CLICK HERE. If anybody sees anything unreasonable or disagreeable in the Terms of Use, please let me know.
Please note that Dankowski Detectors now has Terms of Use provisions. Nothing has really changed, its just now everything is written down for the sake of those who in the past liked to argue. To view, CLICK HERE. If anybody sees anything unreasonable or disagreeable in the Terms of Use, please let me know.
Re: Minelab Equinox owners - Question - Yesterday
There have been times where I 'think' I have encountered a slight more EMI with the 12" coil; yet, truthfully........ I do not think so.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: What detector to buy - 2 days ago
George...... can you afford a Equinox-600? (The 600 is a fair amount cheaper than the 800). If not...... then I would only recommend the Vanquish-540. (Specifically because of Multi-Frequency operation......... which is paramount for the wet-salt beaches).by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Minelab Equinox owners - Question - 3 days ago
mida....... with current technology "shielding the top of the coil" would create a large/interfering 'null'..... of which..... would distort the overall footprint of the coil. Gary.......the MDT is fairly good at mitigating EMI; yet, there is no mode/means/methodology that is user/operator adjustable .....to fix/mitigate EMI when you encounter it....on the Tarsacci. The onlby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Minelab Equinox owners - Question - 3 days ago
Because nearly all EMI enters through the coil. (And not the coil wires.....of which.....are usually shielded).by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: How widely were gold coins dispersed in the US - 5 days ago
Requested BUMP This may help folks in the renewed interest of find a gold coin.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Minelab Equinox owners - Question - 6 days ago
((( Andrew......... I am more concerned about your DIRT! ))). basstrackerman....... And THAT is a textbook-perfect example of the very premise (of my sleepless nights) of what I am forging to mitigate. goodmore..........yes. ANY "wireless" device is substantially more prone to noise/EMI. And NOT to revert backwards from advancing the technological advancements; yet, I will NOT hunby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Deep Nickel VDI numbers. - 6 days ago
I would also like to add...... (and it kinda goes without saying): If mineralization is bad..... all ID's are out-the-window.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Deep Nickel VDI numbers. - 6 days ago
Dan...... yes. Absolutely! Yet...... with one caveat. At the deeper depths..... there is a slightly greater "ID splatter" propensity. So........... Keep your Nickel ID window on the 11-14 ID range. When you acquire a target in this range....... it will teach you the nuances of "Nickel splatter". ((( You may hate it at first...... then you will NEVER look back!!! )))!!!!! It&#by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Dimitar Gargov - 6 days ago
Dimitar is: Coin$trike, Gold$trike, ID Edge & ID Excel The Coin$trike and Gold$trike potential.... was never 'realized'.,.,.,.,.,.,.,.,., as (unsuspectingly)......... they required the coil to be swept at 1/2-speed. THAT'S where the 'depth & ID' became groundbreaking .... especially in bad dirt.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: WTB Nokta Impact - 7 days ago
choppadude....... send me a PMby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Minelab Equinox owners - Question - 7 days ago
Steve................... logical question. I merely WISHED it were that easy/simple/straight-forward for you to know that you are on the wrong EMI channel. Yes.............. there are times when you would 'audibly' know that EMI conditions have changed,.,.,., simply by your audio level suddenly becoming 'chatty'. BUT ......... there were plenty of times whereby......you had neby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Minelab Equinox owners - Question - 9 days ago
I'm just returning from the field...... after a psychotic/psychosis testing campaign with EQX. Nutshell: It would take 8 - 8-1/2 minutes to MANUALLY find the best Noise Cancel Channel. Then I would/could hunt for about 2 minutes. Local/ambient EMI atmospheric conditions would change.......... requiring a new Noise Cancel Channel. It would take another 8 to 8-1/2 minutes to manually findby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: SMF--contender or pretender - 9 days ago
SMF has the ability to see salt phase-shift from different freqs & phase-shift angles. SMF has the ability to see mineralized dirt from these different freqs & phase-shift angles. When you process these signals (through a comparator)..... you are better able to electronically compensate for them...... allowing to somewhat 'rid' ground flyback/blowback........and see an actualby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Help needed on Equinox iron bias. - 19 days ago
There's many ways to tackle EMI. Mostly in (merely) mitigation. And very few ways to 'rid' EMI. There's been a heavy/concerted campaign ....... for the past 3-1/2 years...... in ridding EMI. I can divulge zero data on this subject-matter........ for now.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 19 days ago
What is of concern is........ EMI (of nearly any type/source)..... hampers the receive signal of any detector. Analogy: If a radio is playing softly in a room...... you may only miss the conversation(s) of the folks that are whispering in the room. If the radio is playing at a medium volume level..... you will miss hearing folks that are talking in a normal tone of voice. If the radio is playingby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Help needed on Equinox iron bias. - 21 days ago
On a average day in my test-garden....... the highest I can run EQX Sens is '23'.......and ascertain mild EMI chatter; but only AFTER repeated Noise Cancel searches. This is in "Multi". There are days whereby.......running a single freq will give a bit less EMI; yet, the depth on a Nickel.....and the depth on a Dime.,.,.,.,. still remains less than "Multi". BUT..by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: MDT yellow - 22 days ago
Awesome ratio....for 5-hours! Congrat's!by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Help needed on Equinox iron bias. - 22 days ago
If EMI prompts: Multi to be run on Sens 12 but A single freq authorizes a Sens of 16......... run the single freqby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: Help needed on Equinox iron bias. - 23 days ago
caroly........ If you switch over to a single frequency.,.,.,.,., the Iron Bias does NOT "carry over" to the single frequency ....from the Multi-frequency setting. It is not 'global'. It is 'local'. The Iron Bias will be a predetermined 'fixed' setting whilst in single frequency. A bit more technical detail: Multi frequency transmits several frequencieby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 24 days ago
There's a fair amount of 'variables' .... that would need to be made: 'constant(s)'...... in order for this test to retain validity. But............. I believe it could be done.,.,.,.,.,. with proper logistical configuration.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 25 days ago
There is a higher propensity of silent EMI with cell phones (vs detector)....... as compared to obvious audible EMI. I DO notice that when my cellphone rings....... THEN it produces audible EMI on the detector. Sooooooo....... I choose to keep my cellphone in the car whilst detecting.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 25 days ago
In general.... most PI's are a bit less sensitive to EMI.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 27 days ago
Chris...... yes. Crazy thing is....... on 2 occasions...... ONLY 40-KHz worked. That's my last choice for the intended copper/silver coin hunt. But...... it (somewhat) kept me in-the-game. I did not have a CZ (or other brand) with me. Just a EQX......and my backup EQX. (((Made me re-think my operating procedure).by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 27 days ago
steveg....... absolutely! I use a clad dime to check the air-test results between 2 (or more) silent Noise Cancel Channels. So far..... it is the only way to differentiate between the two silent Noise Cancel Channels. One problem that I have run into is......... I have seen/witnessed/experienced one 'quiet' Noise Cancel Channel......"change" performance (somewhere in mid-streaby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 28 days ago
I still have a heart/place for the DMC-2b! It 'set-the-pace' for a couple of Decades. On another note: I've gotten carried away.....again.,.,.,.,.,.,., with Beating-a-Dead-Horse to a newer/higher order-of-magnitude. All related to EMI. ((EQX-800...... Park Mode-1)). For Decades ...... on multiple hunts/occasions. , . , . , . , . , . a long-since 'dead' site.....would &by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 30 days ago
Beroxy ...... yes.,.,.,., yet, it's a bit more advanced than Noise Cancelling headphones. NC headphones will cancel what IS there (as noise). But....... in the detecting world...... the intent is to 'shift' operating frequency(s)..... so as to operate outside the EMI freq's. . . . . . so it does not need to be 'canceled'. ScoTTT2....... Because of the random/asymmby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 4 weeks ago
Gary........ it is not just the Equinox that can incur EMI. The T2/F75 platform(s) expressed the MOST EMI of all detectors. These are very hyper high-gain units that can easily be plagued with EMI. The CZ platform was one of the (if not THE) lowest EMI-plagued platforms out there. However; just because you could not hear EMI in a CZ....... did NOT mean that it was unaffected. In fact....... the Cby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 4 weeks ago
Gary......... nearly all of the coins were modern clad......except for 6 coins that came up at nearly exactly 10" deep. These coins (the best that I could extrapolate)....... were dropped around 1967. As follows: 1966, 1961, 1959, 1959 Memorial pennies........1953D wheat penny........ and a 1963 silver Rosie! (Sandbar Florida sink-rate: sucks!) On 5 (of the 6) deep coins....... I did one siby NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: ON THE HORIZON = MDT-8000 - 5 weeks ago
gman........ No. Because......there is no other detector out there with a separate control for Salt Balance and Black Sand , . , . , . , . , . , that is coupled with time-domain O.S. parameters.by NASA-Tom - Thomas Dankowski Metal Detecting Forum
Re: On my mind -- Random Thoughts - 5 weeks ago
(((Steve..........to the point of a sickness.,.,.,.,with sleepless nights))).by NASA-Tom - Thomas Dankowski Metal Detecting Forum
