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#1327
11-29-2016, 12:35 PM
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Yes, I am very good, I today again found a pile of COINS in 30 m distance, it is 1.5 metres deep
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#1328
11-29-2016, 01:47 PM
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Quote:
I congratulate you, with which PCB you made your GDG with that of Franco italy or that of payam20 thank you in advance
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#1331
11-30-2016, 07:16 AM
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not work..😭😭😭
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#1332
11-30-2016, 07:47 AM
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Quote:
You should wrote 30cm distance and 1,5mm deep.
__________________
Global capital is ruining your life? You have right to self-defence!
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#1333
11-30-2016, 10:21 AM
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For once I agree in part with WM6, I feel much more reasonable 3 meters away and 15cm deep.
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#1334
11-30-2016, 01:21 PM
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This is not a simple project, it requires a reasonable PCB, use with everyone there is huge difference between components, you need to carefully check, 1 pf capacitor, enough to affect your output, distance is not wrong, I said detected 30 m away a pile of copper wire, its depth of 1.5 m
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#1335
11-30-2016, 02:27 PM
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Hi liudengyuand,
You knew where the copper was buried? There was no need to dig? Best Regards
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#1337
12-01-2016, 05:06 AM
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Different PCB output voltage is not the same, I double pane of the output voltage is 1.86 v, but it has the sensitivity to detect metal, if increase the capacity of c2, the output voltage will rise, detection of metal is the same, so there is no relationship between the output voltage of the circuit
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#1338
12-01-2016, 10:33 AM
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C2 doesn't influence the gain of the stage, but only the amount of 8Mhz signal that it's amplified. It's necessary to increase C13 and/or C14 for have more gain.
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#1339
12-01-2016, 04:11 PM
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Quote:
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#1343
12-03-2016, 03:14 AM
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I am improving it, I think is more convenient to adjust the machine, not to question its depth, it is better than any pulse machine to depth, a silver 20 mm in diameter, if it has a long time, it can reach at least 2 m depth and scanning distance of 20 meters
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#1344
12-03-2016, 10:56 AM
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liudengyuend..where ur proyek picture please show to me.thank
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#1345
12-03-2016, 12:05 PM
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Because my English is not good, don't send pictures in this BBS, I uploaded several times have failed
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#1347
12-03-2016, 10:29 PM
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Quote:
Click on the "Manage Attachments" button, browse to the image on your computer, and select "Upload".
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#1348
12-04-2016, 07:20 AM
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contradictory! First you said about detection a pile of coin then said a pile of copper wire!!!!!!!! What do you mean? You forget your saying soon!!!!
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#1349
12-04-2016, 07:37 AM
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Please carefully read my articles, I have no contradiction, I found the coppers, also found the silver COINS, if you believe it, can also not letter, you do not succeed? Very simple, more experiments
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#1350
12-04-2016, 07:39 AM
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Quote:
Hello liudengyuand, You now have 32 participations in English. You have read and written in English, but to help your friends how they helped you, you say: << My English is not good >> It's easier to say I do not want
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