geophex gem 2

[bushido]

hello,
is the geophex gem 2 the best multi-frequency EM device in the world?
Could you please give me information about depth, void and cavities detection, metallic and non-metallic manmade objects detection, precious metals, gold veins and gold ore detection?
Is it possible to use it in Treasure hunting?

[MrMister]

The Geophex instruments are the only multifrequency EM devices currently being manufactured in the world. It's not a treasure hunting instrument.
The rest of your questions are very broad with no simple answers, I recommend that you start by reading the publications on the Geophex website. They have excellent information on the theory of operation, depth of exploration, and its usefulness on the targets you mention.

[bushido]

no they are not the only ones. Another russian company called nemfis is selling Em multi-frequency devices (14 different frequencies). Geovizer (3 frequencies) and Aemp14

[hugogtz]

Hi
do You recommend the geovizer?
Regards

[bushido]

i've read a lot about those russian devices. They are reliable and they are being used in many countries.

[davidson]

The idea of using multiple frequencies stems from the skin-depth effect, which is inversely proportional to the frequency.