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Add to this, not al
l types of audio meter manufacturers use the same sound ‘conventions’
when designing their instruments. So, take this video to simply be an example of various
“typical” sounds, as a clue to help you in your detective work ferreting out sources.
These
types of meters are designed to measure field strength, not really to identify sources by
sounds. The sound is just added sensory feedback.
Since there are so many such videos on YouTube by well meaning amateur EMF sleuths, that
give the impression that EMF sources can be identified easily by the sound, the public has
formed the impression that anyone can buy a meter and take their own measurements as
though it was like taking their own temperature to see if they have a fever.
We have yet to see a proper internet video that teaches (or even demonstrates) how to meter
accurately, interpret the results correctly, and evaluate the exposure situation adequately. In
actual fact, one of the most frequently asked questions we get
is “how do I make sense of this
EMF meter I bought online ?
”
A more reliable way to locate sources with this meter is to use the directional capabilities of a
one-axis (one direction) meter, particularly if you cannot see the source. In other words, as
you point the meter antennae (the green triangular apparatus) in the direction of the source
the measurement goes up; this takes you in the direction of the source where you can make
an educated deduction of what the source is, by remembering how EMF behaves and what
devices emit what type of EMF, then by factoring in what sources broadcast at what
frequency
–
all of this together will tell you what materials will shield and offer the best
protection from exposure. In some cases, you never even need to identify the source
(perhaps it is even intentionally hidden) because the goal is to protect from high EMF
exposure regardless of what the source is.
Remember, the function of all of these inexpensive types of meters for public use is to
measure field strength. If you have a high EMF field strength reading you have a high EMF
exposure level situation
–
this is simply two ways of describing the same thing.
However Field Strength measurement is primarily useful only to the extent that “before and
after” field strength measurements can confirm
that your applied shielding/protection
strategies, methods or products are effective in that specific exposure situation; and of
course, to the extent that a meter reading of zero can tell you when you do not need
protection at all.
And, in any case, since the best that shielding can ever do is offer a reduction by percentage
(of protection effectiveness) relative to the field strength in any situation, simpler solutions
like avoidance, distance etc are always the best protective method wherever possible. In my
experience, that is the best use of meters
–
to reveal the field strength so that we can locate
our precautionary EMF safety boundaries. And stay away from them.
