Furuno FR-8111, FR-8251 manual Radio Frequency Radation Hazard

WARNING

Radio Frequency Radation Hazard

The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. Never look directly into the antenna aperture from a close distance while the radar is in operation or expose yourself to the transmitting antenna at a close distance.

Distances at which RF radiation levels of 100 and 10 W/m exist are given in the table below.

		Distance to	Distance to	RF power
Model	Radiator type			density on
		100 W point	10 W point
				antenna aperture
	XN2 (4')	Nil	Nil
FR-8051	XN3 (6.5')	Nil	Nil	Not measured
(X-band, 6 kW)	XN3A (6.5')	Nil	Nil
	XN4A (8')	Nil	Nil
	XN2 (4')			11.0 W/m2
FR-8111	XN3 (6.5')	Worst case	Worst case	9.6 W/m2
(X-band, 10 kW)	XN3A (6.5')	0.25 m*	2.3 m*	9.6 W/m2
	XN4A (8')			6.7 W/m2
	XN2 (4')			29.0 W/m2
FR-8251	XN3 (6.5')	Worst case	Worst case	23.8 W/m2
(X-band, 25 kW)	XN3A (6.5')	0.6 m*	3.25 m*	23.8 W/m2
	XN4A (8')			20.6 W/m2

Note: If the antenna unit is installed at a close distance in front of the wheel house, your adminis- tration may require halt of transmission within a certain sector of antenna revolution. This is pos- sible—Ask your FURUNO representative or dealer to provide this feature.

* UK DRA measured on FR-2810/2820. Other values by FURUNO.

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