The drawing of the coils was simply because the program did not have an antenna component, and I used a coil.
I used a steel wire as antenna, with a length of 14 cm.
i want to know when we work with this range 30 hz-70 hz and when with this range 5 khz 11khz ???
I think the first without transmitter, and the second with transmitter ???
32-33 hz (General gold frequencies - you can find all types of gold but also you find alloys containing gold - Bronze etc.) - it can find fresh gold
53 hz - 8K-14K-18K (Main frequency) You can find alloys too ( but big peaces)
133 hz - 18K-22K-24K old and fresh gold - No alloys
5621 hz - All quarats but mostly 22-24 K and OLD gold
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