Quote:
Originally Posted by Mike(Mont)
Sorry, I am not qualified to give any advice for you. There are some projects on the forum and they can help you.
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thank you
Quote:
Originally Posted by Mike(Mont)
I probably didn't explain this very well. If you do not know what you are doing it is best to build a project that has already been tested and shown to work. Some frequencies do not work in certain areas.
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thanks , one of my friends told me about a device that can work at range of 30hz to 20khz frequency ,but i did not know what is it means really but i think frequency not is everything while looking for ancient metals
Quote:
Originally Posted by WM6
Using 30Hz as working frequency, you will face with interference problems of mains power line (60Hz in USA 50Hz in EU).
Above 20kHz skin effect phenomenon begin.
VLF range is between 3kHz and 30kHz.
Probably you need ULF (range between 300Hz and 3kHz), then try with frequencies between 600 and 800Hz and simple Wheatstone bridge solutions.
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thank you so much ,i did not know the frequency is different at countries and some of them not working at other countries , i was thinking to find a proper range of frequency for finding ancient gold ,but maybe never have success by my opinion about find freq
