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Hello people! These two days I had more time and I dealt with the device sd 2000 again, I removed 90% of the noise, the threshold is ideal, the depth has increased somewhat. I never had the opportunity to see the original sd 2000 without any modification. And I noticed that there is no video anywhere where you can see the depth with a 10-inch mono Commander coin-operated coil, specifically I am not sure how powerful the sd original is, that is, what detection it has on the 1euro, can someone who owns the sd 2000 say something specifically on the 1euro, what is the range of the original sd 2000? I can only say that with noise cancellation the detector is very deep very powerful!
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There's not much you can find in this video, however he did an air test at the end of it.
He says for the coin, the SD2000 can detect it at about 20 cm, and the plate at 70 cm. After that he changed some of the settings of the machine and then the coin was detected at about 30 cm as he said.
I hope this gives you an idea about the depth. cheersLast edited by Nightryder; 09-01-2025, 08:08 PM. -
Thank you for the video, but if that's all, I can say that my sd 2000 modified 1 euro detects easily at 40 cm, maximum 45 cm. CH 1 is very very quiet, it seems to me that the original one is quiet in the video CH 2 is a little noisier CH 2 is otherwise for coins, a rumble CH 1 for large targets CH 1 10 cm diameter detects a coffee box at 120 cm with the ground control on, I put a switch so that I can turn off the balancing of the ground without balance with a 10 inch coil it detects the same box at a maximum of about 150 cm.I will measure the depths precisely these days again, but I tested it in the country on a minted coin, in particular, I have small change left from when I was with my neighbors in Bulgaria, 20 hundredths of theirs at 37 cm - 40 cm approximately sd 2000 detects very easily in CH 2...Comment
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You're welcome Orbit. Although I'm not totally sure, I don't think the SD2000 was built for small near surface sub-gram nuggets, but rather for deeper larger stuff. However, there's a mod for it around the internet which is considered a must-do by many prospectors. You might want to look for it and try it out before you put it in its box. I wish I had the layout or a revised schematic for it so I can build, modify and add it to my arsenal. So, if you have anything to share with me, I surely would appreciate it.
If you don't have SCRIBD subscription, you can open the link from your cell phone.
best of luck!
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Hi Night Rider, my samples are generated from mcu.. I'm not even interested in mining here, there is little of that, I'm interested in coins and deep larger objects..Comment
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Is your SD2000 a modified version or you built it yourself based on the Schematic in the forum? Thanks.Originally posted by Orbit View PostComment
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Yes I used the scheme with Geotech from Zed pcb is modified as well as the timing circuit I use a filter from gpx I made mods for both channels for light soil like most places in Europe it can work in the country where there is strong mineralization but also where there is soil with little mineralization adjusting 4 potentiometers also since I tested the 50cm coil in CH 1 in Serbia in places where the soil is without mineralization almost or not at all it does not feel the ground as well as small coins or small waste I added a switch to turn off the balance of the ground actually with two added potentiometers it is possible to turn off the balance of the ground or adjust it where there is little mineralization in the ground so that the additional Potentiometers serve that it is possible that the balance does not close the signal from the target... This also allows a stable threshold because the influence of the balance from the third channel introduces noise into the operation of the device.Comment
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Is it something similar? You downloaded this modified SD2000 circuit for this detector, which was designed in Bulgaria, and later the project was sold.I saw them selling it on an Italian site.Comment
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Hi Orbit and algan,
Do not use this scheme! It has many fatal errors.Comment
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I have not downloaded anything in the picture j my scheme but the sd 2000 we are talking about here has nothing to do with this scheme! Also, the scheme you posted here has errors, secondly, if you compare the filter, I think it's the same as the sd 2000 Zed..Comment
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Yes errors..Maybe the topic went in the wrong direction and actually I wanted to really know the features of the original sd 2000 without mods.. Thanks everyone!Originally posted by Detectorist#1 View PostComment
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is there are MCU code file ?Originally posted by algan View PostIs it something similar? You downloaded this modified SD2000 circuit for this detector, which was designed in Bulgaria, and later the project was sold.I saw them selling it on an Italian site.
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There is no damaged hard drive and Matejevic is left without hex files.Comment
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