Safe Operating Distance - Garmin G1000 Pilot's Manual

Integrated flight deck for diamond da42ng

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HAZARD AVOIDANCE

A smaller incident angle gives the radar a larger detectable range of operation and the target display shows

a higher intensity. Since more radar energy is reflected back to the antenna with a low incident angle, the

resulting detectable range is increased for mountainous terrain.

SAFE OPERATING DISTANCE

The following information establishes a minimum safe distance from the antenna for personnel near

operating weather radar. The minimum safe distance is based on the FCC' s exposure limit at 9.3 to 9.5 GHz for

general population/uncontrolled environments, which is 1 mW/cm2. See Advisory Circular 20-68B for more

information on safe distance determination.

MAXIMUM PERMISSIBLE EXPOSURE LEVEL (MPEL)

The zone in which the radiation level exceeds the US Government standard of 1 mW/cm2 is the semicircular

area of at least 9.16 feet from the 10-inch antenna. All personnel must remain outside of this zone. With a

scanning or rotating beam, the averaged power density at the MPEL boundary is significantly reduced.

Figure 6-130 Angle of Incidence

9.16 ft. for 10"

Figure 6-131 MPEL Boundary

Garmin G1000 Pilot's Guide for the Diamond DA42NG

190-00-00962-04 Rev. A

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