82694_
Op&Ins MAN_RA2500_D 4-3
Vertical separation distance and distance from mast or other object of metal:
Vertical separation distance:
Vertical separation distance:
VHF antenna for AIS:
More than bb
Other VHF
antenna
>0,5 meter
More than bb
GPS
antenna
>0,5 meter
VHF antenna for AIS:
Figure 4.1.3b, Examples of vertical distance between antennas
4.2 Cabling
The cable should be kept as short as possible to minimize signal attenuation.
The table below gives recommendations on cables that can be used for the GPS antenna
connections:
Type Attenuation
@1.5 GHz
(dB/100m)
Remark
RG58
90
Default for use if length< 20 m and antenna = Procom
GPS4
RG214
35
If combined GPS/VHF antenna from either Procom or
Comrod is used, this or better can be used
RG225
30
Cable with lower loss
Содержание RA-2500
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