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16 Installation
Figure. 2.2 - Rear view connections
2.5 VHF antenna
North A
merican Users
- To meet FCC (Federal
Communications Commission) rules on Radio Frequency
Exposure, it is recommended that the VHF antenna
is mounted at least 3m (10ft) away from any area
accessible to any personnel on board. If this distance is
achieved by vertical separation, the antenna must be at
least 5m (16.5ft) above deck. This guideline applies only
to antennas not exceeding 3dBi gain.
Failure to observe these recommendations may
expose those within the MPE (Maximum Permitted
Exposure) radius of 1m (3ft) to RF absorption levels
that exceed the FCC safe limits.
The most important factor in the performance of any
AIS transceiver will be the quality and positioning of the
antenna.
As the range of VHF signals are governed by line of sight,
the antenna should be placed as high as possible, while
remaining clear of any metallic objects.
Long whip antennae are generally recommended for
larger boats, although the most popular antennae for
marine use is 1m (3ft 3in) long. On sailboats these are
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Summary of Contents for SIMRAD AI50
Page 1: ...MANUAL SIMRAD AI50 Class B Transceiver 988 0168 003 Iss 3 0 English ...
Page 8: ...8 Contents Blank page ...
Page 12: ...12 Introduction Blank page ...
Page 56: ...56 Menu Mode Blank page ...
Page 76: ...76 Alarms Blank page ...
Page 82: ...82 Appendix Blank page ...