Published evidence has led us to believe that it is
more likely that the electric field component of the
field is interacting with the human body or nervous
system. If the human body is reacting to specific
electric field signals, it is more likely that the peak
electric field strength is the more relevant metric.
All RF meters that are adequately sensitive to be
able to measure fields at levels below those that
cause heating (a few V/m or below 10,000
µW/m
2
),
measure voltage and then calculate the approximate
power level. Some do that correctly, and some just
display the peak level directly converted and they
give incorrectly high readings. The direct conversion
only works correctly for continuous non-pulsing
(CW) signals.
The Acoustimeter displays both the peak signal
strength in V/m as well as the power in µW/m
2
,
correctly integrated over some 25,000 readings
every second.
The EMFields website has an RF unit converter for
continuous RF (CW) signals on this page:
http://www.emfields-solutions.com/rf
You may have noticed that different PFD units are
used in some regions. We have chosen to use
µW/m
2
on the Acoustimeter, as this is the most
commonly used internationally, and these readings
can be easily converted into other PFD units.
1 µW/cm
2
= 10,000 µW/m
2
= 10 mW/m
2
= 0.01 W/m
2
1 mW/cm
2
= 10 W/m
2
= 10,000,000 µW/m
2
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