Inductance method could be used, using wires in the ground. And shooting a beam and bouncing it off a plate for a return signal could be used also. Although, that is not my goal. I am trying to find someone who has experience outside of the box for some advice on a remote system that would work...
The Operating Frequency options I am needing are 902-928 MHz ISM (Industrial Scientific Medical) band or up to the 2.400 GHz to 2.500 GHz ISM band.
I am trying to attempt is to SEPARATELY detect and measure the electric and magnetic field remotely. At a distance up to 5 miles or more.
How can I separately detect electric and magnetic field remotely?
I am aware of the Faraday Effect, but because the magnetic field is so weak I won’t be able to detect the polarization change.
Though I am in Aeronautics... primarily Jet Engines, I am not an electronics buff, but I have a fascination with Telluric currents after reading some about the subject.
I am considering an attempt to build a receiver, a few hundred bucks, low budget attempt :)
I am guessing it is possible to...
