Chapter 2: Installing the system
8
Placing the antenna
2.2 Placing the antenna
2.2.1 Obstructions
The antenna rotates 360° and down to –25° for the
SAILOR 500 FleetBroadband and -60° for the SAILOR 250 FleetBroadband in
pitch and roll, to allow for continuous pointing even in heavy sea conditions.
Any obstructions within this volume can cause signal degradation.
The amount of degradation depends on the size of the obstruction and the
distance from the antenna. As a rule of thumb any obstruction that subtends
an angle of less than 3° at the antenna has limited effect. The table below
gives a guideline for obstruction sizes, which will cause limited degradation.
Distance of
Obstruction
Size of Obstruction
3 m
16 cm
5 m
26 cm
10 m
52 cm
20 m
104 cm
Summary of Contents for 500 FleetBroadband
Page 1: ......
Page 2: ...SAILOR 500 250 FleetBroadband INSTALLATION MANUAL ...
Page 16: ...Table of contents xiv ...
Page 22: ...Chapter 1 System units 6 IP handset and cradle ...
Page 60: ...Chapter 3 Connecting power 44 Remote on off ...
Page 100: ...Chapter 7 Troubleshooting 84 Logging of events ...
Page 124: ...Appendix B Technical specifications 108 SAILOR FleetBroadband terminal ...
Page 146: ...Appendix C Grounding and RF protection 130 Electrostatic Discharge ...
Page 154: ...Index 138 ...