12
Installation
The satellite TV antenna must be mounted as far away as possible from ship’s
radar and high power radio transmitters, because they may
compromise the satellite TV antenna performance. RF emission from radars
might acually damage the satellite TV antenna.
Preferred placing
Avoid if possible
Min 20
o
d
Min 20
o
Radar
It is difficult to give exact guidelines for the minimum distance between a radar and
the antenna because radar power, radiation pattern, frequency and pulse length/
shape vary from radar to radar. Further, the antenna is typically placed in the near
field of the radar antenna and reflections from masts, decks and other items in the
vicinity of the radar are different from ship to ship.
However, it is possible to give a few guidelines:
Since a radar radiates a fan beam with horizontal beam width of a few degrees and
vertical beam width of up to +/- 15
o
, the worst interference can be avoid by mounting
the antenna at a different level - meaning that the antenna is installed minimum 20
o
above or below the radar antenna. Due to near field effects the benefit of this vertical
separation could be reduced at short distance (below approx. 10 m) between radar
antenna and satellite TV antenna. Therefore it is recommended to ensure as much
vertical separation as possible when the satellite TV antenna has to be placed close
to a radar antenna.
Summary of Contents for sailor 90
Page 1: ...i SAILOR 90SatelliteTVAntenna INSTALLATION MANUAL ...
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Page 16: ...10 Chapter2 Functionaldescription ...
Page 23: ...17 Radome cable wiring Chapter3 Installation Cablewiringradome ...
Page 24: ...18 Chapter 3 Installation Cable wiring radome Radome cable wiring ...
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Page 48: ...42 Chapter5 PCprogram programupdate Programupdate ...
Page 59: ...53 Troubleshooting chart Chapter 7 Troubleshooting Troubleshooting chart ...