1. HOW TO INSTALL THE UNIT
1-3
• FELCOM 250: Personnel should not approach an area in which the radiation level
is higher than 10 W/m
2
, i.e., within 0.70 m from the radome surface.
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.
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.
MICROWAVE RADIATION !
NO ADMITTANCE WITHIN 0.7 m
0.7 m
More than 5 m
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.
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Содержание FELCOM250
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