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• FELCOM 250: Personnel should not approach an area in which the radiation level
is higher than 10 W/m
To alert personnel not to approach the antenna unit, attach the radiation warning
sticker (supplied as installation materials) to any bulkhead which is at the position
of 0.70 m from the antenna unit.
Minimum distance from other antennas
MF/HF antennas, communication/navigation antennas:
The antenna unit should be at least five meters from a MF/HF antenna. The VHF, sat-
ellite navigation antenna and other communication antennas should be at least four
meters away.
Radar:
The antenna unit should be at least 5 meters away to protect the low-noise amplifier
in the FELCOM 500/FELCOM 250 antenna unit. If this distance cannot be secured be
sure the antenna unit is not within the radar beam. However, never install the antenna
unit within 3 m of a radar antenna.
30
If installed within 5 m of
radar antenna, the antenna
unit must not be within the
radar beam. Never install
the antenna unit within 3 m.
Compass safe distance
Locating the antenna unit too close to a compass can affect the compass perfor-
mance. Keep the compass safe distance to prevent interference to the magnetic com-
pass. See page i.
2
, i.e., within 0.70 m from the radome surface.
MICROWAVE RADIATION !
NO ADMITTANCE WITHIN 0.7 m
0.7 m
1. HOW TO INSTALL THE UNIT
More than 5 m
20
1-3
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