Microwave Rf Emissions - Kustom Signals Golden Eagle II Operator's Manual

Section 5--General Theory of Operation
5.1.

Microwave RF Emissions

Traffic radar operators may have some questions about the
biological effects of exposure to the microwave energy
produced by the radar devices. According to all credible
evidence, the emission levels resulting from traffic radar
use pose no threat whatsoever, either to the radar operator
or to target vehicle occupants.
One widely recognized authority for safe limits of
nonionizing radiation exposure is the American National
Standards Institute, which recommends maximum exposure
levels for the frequencies on which Kustom traffic radar
systems operate (ANSI/IEEE C95.1-1999, "Standard for
Safety Levels With Respect to Human Exposure to Radio
Frequency Electromagnetic Fields, 3 kHz to 300 GHz").
These exposure levels, expressed in terms of power density
2
are 10 mW/cm for K-band and Ka-Band radar units.
Similarly, the Occupational Safety and Health
Administration (OSHA), a division of the U.S. Department
2
of Labor, recommends a 10 mW/cm exposure limit for all
three frequency bands ("Radiation Protection Guide", 29
CFR, Chapter XVII, Subpart G, Part 1910.97). This limit
is clearly accepted by most reputable scientific and medical
authorities.
Kustom radar systems utilize microwave transmitters,
which produce aperture power densities, measured directly
at the face of the antenna, in the range of approximately 0.3
2
to 2.3 mW/cm . Typical levels for the vast majority of
2
units are in the 0.4 to 1.0 mW/cm range, which is but a
small fraction of the recognized safe limits. Bear in mind
that these are level measurements taken directly in the main
beam of the antenna, and that the power densities produced
at the sides and rear of the unit are typically at least one
hundred times lower than in the main beam.
5.3