EL NINO77

....I think Fisher Impulse AQ shows the right way using 18650 li-ion Battery as a power source..for very powerful detectors...

Some metal detectors have separate power to the main electronics where the voltage converter ... and the detector's audio output works directly from the battery ... So the low battery voltage while the detector electronics is working OK, but the audio part is already very weak sound signal ... For my detectors it's TeknetiksG2, and Fisher GoldBug2 .. 9V battery meets the requirements for low power detectors .., and provides another advantage in small size 9V battery and weight -up to 30-50grams.. For heavier power detectors .. and utilizing a large number of 6X-8X AA batteries - which means a large weight of 200-300 grams of battery holder is the use of a 2-3 Li-ion battery quite a big advantage ..- High power capacity ..., ... Low weight ... as well as reliability of work / 2-3cells Li-ion compared to 6x-8xAA battery with large current draw / .. this is a plus ..

The 9V battery is still one of the industry standard heads for low current devices ... The only disadvantage I see in 9V Ni-MH rechargeable batteries is the smaller power capacity of 170-mAh up to max. 250 mAh .Classic Alkaline or Lithium 9V batteries - having 3x to 5x higher capacity energy - 600 to 1000 -1200 mAh. But I believe this difference in power capacity in the near future with the help of li-ion or li-pol technology will quickly equalize ..

If you want to use 9V accumulators that have a true voltage of 9 V-use, use those that consist of 7 or 8 internal cells ...- fully charged I will be 9.8-10V or 11.3-11.6 volts ...

I would take into consideration the Equinox800 and 6 "coil - I think it is similar to GoldBug2 at 6x3" coil... Equinox800: sens 25 , rec speed-4, frekvenci 1f-40 khz..: disk :p. Park2 : 1.5cm-1.8cm.... allmetal:p. Gold2 : 3-3.5cm Gold-bug2: sens10, volume 10, treshold 1/2 to-max.. Disk: 1.5cm-1.8cm Allmetal: 3 cm -3.5cm..

Dan...... Equinox uses a single frequency of 5/10/15/20/40 Khz .... works very much like a 1frequency detector that means deeply low-level ID targets are signaled from high IDs. ..., and the deepest signals go all the way to the iron zone. Sometimes you can use this situation ... and set the discrimination high enough, without losing deep signals ...

Swegin ... I saw her on minelab.forum - .. looks good ..

https://www.ahrps.org/forums/read.php?2,10609,10640#msg-10640

James, let me know then .. how did you mess up with the adapter ..,

James ... if you want .. try to order the Equinox- GM adapter on this page .., https://www.lovecpokladu.cz/eshop/produkt/set-pro-pripojeni-jednotky-minelab-equinox-600-800-k-teleskopicke-tyci

Hello James, I'm going to customize my detectors according to my needs :

Greetings to you Poul, ....you have nice finds .., a nice pile of silver coins "Kopiejka", "Dienga", .,and 5 Kopiejka- Catherina... Also, I'm sorry for your dog that he died..

http://hobby-detecting.com/xp-orx-metal-detector-review-and-settings/

My theory is that according to Rockwell's C -hardness - HRC-33 - it would point to a low-carbon, non-magnetic stainless steel. .. But it would be better if you were somebody else and more valuable ... Via we'll know when MarkG measures the exact Gravity of this metal...

MarkG .. You can try .. what ID will show Spectra V3?

Teknetiks G2 -its designed as a gold detector - so in Mode Discrimination mode is its ground filter built to be very resistant to mineralization and good identification-ID and excellent stability ..... It's a high Ground filter .. - therefore has a limited detection depth ... The only possibility to improve the depth properties of the ground filter at Teknetics G2 ... is to use a large coil ...in my case 13 DD"ultimate...

I think it would greatly help in identifying - to calculate the specific Gravity- by immersing it in the liquid ..., The second test would be - just a little bit - what is the melting temperature of the material. The low melting temperatures would prove to be lead, tin or zinc ... high melting temperature - it is silver ... Practically, compare 2 different pieces of metal -for example... pieces of tested metal... and pieces of Aluminum - by simply comparing... the melting temperature.

If I compare my air-test tests with my less mineralized ground "1Bar Fe3O4-Tek.G2" -range in the ground, it will be at most lower by about 10-15%,to 20% ... for different types of objects compared to airtest ... on DD coils ...

Pinpointer Profind 35 is on sensitivity 3 - equally more sensitive and has the same - more range than older Profind 25 ... at maximum sensitivity - 5 .. I have slightly mineralized terrain that is changed from often working with Profind35 on sensitivity 4-5 without any problems ... on more difficult terrains I have a sensitivity of 3-4 ... and it's ok .. ---------------------------------------------------------------------------------------------- Test:- Frequency response - In strong mineralization ... I tried to do similar tests of 9.6-gram silver coin :-2 pesetas 1882 Alfonzo XII .. in depth 3.5 "= 9cm in Black sand ... very strong mineralization is 7 bar Fe3O4- measured on Teknetics G2 .. Testing Whites Spectra V3 detector and 6x4 shooter coil .., - detector settings Whites Spectra V3: best data, program Hi-pro,recovery delay 70 ,,7.5hz-12.5hz band ground filter ,optimal Rx gain= 1- 2 max..., .. DS 70-95 ... The test was done on 3F multifrequency, but I also did the tests on separate 1F frequencies: 2.5khz- 7.5Khz- 22.5khz ... Multifrequency pointing to 3F signagraf- as good signals on 22.5kHz and 7.5kHz, ... but for 22.5kHz - no positive signal ... Practicals similarly hit tests on 1f frequencies ...- on tests on 2.5khz and 7.5khz i got nice signals ... on at 22.5khz frequency I could not get any reasonably positive result. A similar test is repeated on 3-gram Gold ring of 3.5"-9cm depth in black sand.... I will see the results of the gold test .. Due to the strongly mineralized 7 bar Fe3O4-Black Sand I used the same setting for Spectra V3 as in the silver coin test: 3F multi fa tiez 1F. Frequencies, Hi-Pro program, best data, 7.5hz-12.5hz band filter, recovery delay 70, optimal Rxgain was 1-2 ... because setting Rxgain to 5 = caused overload, Ds 70-95 ... In Spectra at 3F multi frequency this test in the gold ring was shown as the best signals on the 22.5khz signagraf and also the 7.5khz frequency ... On the 2.5khz frequency they were practically not well signals ... also the signal control on the 3f pinpoint showed as the strongest the signal was at 22.5 khz, then 7.5 khz and the weakest response had a signal at 2.5khz ... With the 1F Frequency Test at the frequencies, the best frequency was 22.5khz, then 7.5khz. and at the lowest frequency 2.5kzh I practically received no response to the gold ring ... Test Summary: Using the correct frequency on the metal detector greatly affects the correct detection of the signal from the type of the subject in the ground ... The Spectra V3 in 3F- multifrequency has been shown to be the most versatile of both types of gold and silver ... in the highly mineralization conditions. In the 1.F- test, the average 7.5khz frequency showed the universal frequency - with good signals on the silver coin and the 3-gram gold ring - on medium size objects.

I compared how the discrimination setting works to accept from-2 to +40 ID ...- and its influence on the ID display on the Equinox screen versus ID in allmetal - horseshoe ... Tested in strongly mineralized Black-sand -7bar Fe3O4- measured Teknetick G2-11DD "coil at 50 eurocent coin in depth 3.5" - 9cm ... Equinox 800 -and 6"coil- in Ground Balance : is value 2GB.., recovery speed4-5-6,...sensitivity 17-18..,iron bias 0.... and programs Park1,Park2, Feld1,Field2, Beach1.. After testing the Equinox 800 on a 6 "coil ..say : To set a certain degree : IN ...Discrimination:.. in my case from the Accept of -2 ID to + 40 IDs : Signal -Its still, ..much better,... and more visually stabble-, non-ferrous+ID.. in the range...of +20- to +25 ID... and also nice "non-ferrous "sound ... IN... Allmetal : I also received a non-ferrous sound ... but the ID on the screen very often and regularly showed the iron ID .. = - 7 ID, -6 ID and .. sometimes positive non-ferrous 20-25ID also appeared. So after this test... : I verify ..."Fully open discrimination = Allmetal" : can limit correct display of "non-ferrous +ID "- when it comes to complicated signals - while in an audio signal you are still hearing a nice non-iron signal ... So the appropriate setting of Discrimination - certainly helps in such a situation .. - Limit the negative impact on defining the correct ID in complicated terrain conditions. So this setting of discrimination from -3, -2 to +40 ID will still be perfect separating properties ...

Groundscanner....if you have signaled from a permanent iron accent - modify the program to discriminate to accept from -3 ID to + 39-40 ID ..- you will substantially clean the audio signal of the Equinox signal... In the next step, you can adjust the recovery speed by one step upwards - it also helps ...

MarkG has done very good work ....for what I also want to thank

I started to modify my G2 teknetics - as a base I used my modified bottom carbon fiber rod, and I roll up the Equinox minelab ... The next step in tuning will be using a 3-position switch - like Whites Spectra V3 - for fast switching between Allmetal - Discrimination -Discrimination from RXgain.- so I use a 3-pole switch. On the photography is also my yesterday's random acquisition of a 2-handed detector-but a virtually new Fisher GoldBug2..6.5 "coil, a 10" coil, and for that new headphones Nugget Bosters, all for a price I could not refuse. So soon we will have a comparison of iron separation on the Teknetics G2 19khz-coil of the snake 6.5 "DD coil into Fishera Goldbug2 -71khz on the 6.5" CC coil.

the price of transport from the Czech Republic to Slovakia is 8.08Eur, so I usually order something for example what I need, let the costs be divided into less ....

Yes, there is also this option - I've bought it together with the golden Mask shaft.. https://www.lovecpokladu.cz/eshop/produkt/teleskopicka-tyc-pro-detektor-minelab-equinox