Quote:
Originally Posted by J_Player
Are you sure the devices you built had a low pass filter and were optimized to look at low frequencies below 1 HZ? What were the resonant frequencies of the noise you found?
Best wishes,
J_Player
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Hi,
I've followed the original schematic, no mods. It cannot find the water as said... I mean can't do it for rivers and other surface flowing water and also for underground flows, tested in 3 different places for underground water , 2 places have underground pipes with a constant flow of water inside, 1 is a natural underground flow of water of know origin (river).
Found absolutely nothing. No beeps at all in the 3 tests.
Of course, same for metals, even long time buried. Nothing.
In the same place I've tested it I found then after 3 ancient items using a VLF metal detector : 1 copper 18mm diameter, 2 bronze long shape.
Circuits of above serve nothing, don't work for water or metals, just find AC noise.
Best regards,
Max