It sounds silly at first but this guy I ran into has made a lot of money using it. It is
using a similar method as the Spanish Needle by detecting the frequencies put off by
minerals or anything on the planet and then reacting to it.
Picker, I want to make sure I fully understand what you are describing.
Based on the manufacturers claim, minerals (or anything on the planet),
puts out a distinct "frequency", which can then be received or identified
by placing a sample of that desired material against a "power load"
which is mounted into the base of the antenna. The antenna has no
direct contact with the sample, but instead receives the signal from the
power load, which in turn receives from the sample.
If that hypothesis is correct, then it can be confirmed by testing precious
metals for their specific radiated frequency inside of an FCC Certified,
RF/Microwave test chamber.
Because this is a "long range" device, then making these measurements
at a distance of 10m should be about right.
Test setup would be rather simple:
Place a small, 1m tall, non-conducting table in the center of the
chambers "quiet zone". This is the location within the chamber that
has been certified to be completely RF quiet.
Place a 2 oz. gold nugget on the table (is that big enough?)
At the other end of the chamber, 10m away, you set up your antenna.
You will actually need to test with several antennas, as each antenna
is certified as calibrated to a specific frequency band.
Step outside and seal the chamber door.
Making the measurements may also require more than one Spectrum Analyzer
or EMC Receiver. I suggest either using Hewlett Packard or Rohde & Schwartz
measurement gear as accuracy of the frequency measurement is an absolute
must.
The chamber, antennas and measurement equipment should cost somewhere
in the neighborhood of one million US dollars.
Not much of an investment if ya really think about it, as once you have ascertained
the specific, radiated frequency of gold all you have to do is get an antenna tailored
to that specific frequency, and just walk around till it picks up the signal.
If someone has the 2 oz. nugget, there are about a dozen very high quality testing
facilities located around the US that could do the measurements for you. Chamber
time usually costs in the area of $1000 hr., including qualified technicians to make
the measurements. I come from that industry, so would be glad to recommend
a lab.
You might also consider that those tests have been done already, generally
by the staff of the test facility. Don't want to make fun of the people that
do believe in this, but does anyone honestly think those techs would still
be working there if the hypothesis was proven correct?