Furuno FELCOM 82A Series Installation Manual page 10

Locate away from passengers and crew
Radio waves can be harmful to the human body. Since safe distances vary by country and
ship construction there is no uniform formula for calculating safe distance. However, below
are general guidelines.
• Unprotected persons should not approach an area in which the radiation level is higher than 100
2
W/m . For an Inmarsat B antenna, the radiation level is less than 100 W/m
the radome surface.
• Unprotected persons should not approach within 6 meters of a transmitting Inmarsat antenna.
Minimum distance from other antennas
HF antennas, communication/navigation antennas:
The FELCOM 82 antenna should be at least 5 meters from a HF antenna. VHF, satellite
navigation antenna and other communication antennas should be at least 4 meters away.
Radar:
The antenna for the FELCOM 82 should be at least 5 meters away to protect the low noise
amplifier in the radar antenna. However, if this distance cannot be secured be sure the
FELCOM 82 antenna unit is not within the radar beam.
Freq. Range
4 to 10 Hz
10 to 15 Hz
15 to 25 Hz
25 to 33 Hz
Half Vibration
Max. amplitudes
WARNING
Do not approatch within 6 meters of the
antenna radome when it is transmiting.
Microwave radiation can be harmful to
the human body, particularly the eyes.
Max. Amplitude
2.54 mm (max. 9.8 m/s²)
0.76 mm (max. 6.86 m/s²)
0.40 mm (max. 9.8 m/s²)
0.23 mm (max. 9.8 m/s²)
2
2
at 1 meter distance from