GENERAL INFORMATION
15
All Kustom Signals’ radar systems utilize microwave
oscillators, which produce aperture power densities,
measured directly at the face of the antenna, in the range of
approximately 0.3 to 2.3 mW/cm
2
. The vast majority of
units produce values in the 0.3 to 0.6 mW/cm
2
range.
Under no circumstances would a Kustom Signals traffic
radar unit be capable of producing an aperture power
density in excess of 4.0 mW/cm2, still well below the safe
limit. 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.
Another reference document on this topic is a DOT
publication entitled "Field Strength Measurements of Speed
Measuring Radar Units" (NHTSA Technical Report #DOT-
HS-805 9 8). This report documents a series of tests
performed by the National Bureau of Standards on twenty-
two commonly used traffic radar units. Aperture power
density levels measured were from 0.25 to 2.82 mW/cm
2
,
while back-lobe power density values ranged from 0.001 to
0.02 mW/cm
2
. These measurements were obtained with
the radars mounted inside vehicles, as in normal operating
conditions.
While traffic radar devices do emit microwave radiation,
the levels are so low that there are no possible harmful
effects. You may use your Kustom Signals radar unit with
complete confidence in its safety, as well as in its accuracy.
Summary of Contents for DRU III
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