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Installation
shorting the VHF antenna port will activate the VSWR alarm, cause the unit to stop sending position
reports or cause damage to the transponder.
Radio Frequency Exposure
To meet the requirements for Radio Frequency Exposure it is necessary to install the VHF antenna
correctly and operate the AIS equipment according to the instructions.
The VHF antenna must be mounted at a minimum distance (vertical separation) of 3 metres from the
head of any person standing on deck in order to meet international safety directives on Maximum
Permissible Exposure (MPE) / Specific Absorption Rate (SAR).
Where no suitable structure exists to achieve a 3 metre vertical separation then the antenna base
must be mounted at least 1 metre above the head of any person within range, all persons should stay
outside the 3-metre safety radius and if practical a grounded RF shield should be interposed between
people and the antenna.
Failure to adhere to these limits could expose persons within the 3 metre radius to RF radiation in
excess of the MPE / SAR limits.
Summary of Contents for HIS-75A
Page 18: ... 14 HIS 75A System SPEC of the connectors Metal Plastic ...
Page 23: ... 19 Display Chartplotter Data bar Scale Vessel icon AIS target ...
Page 26: ... 22 Display GPS Information Satellite List Gain of Satellite Receiver status ...
Page 42: ... 38 ...
Page 48: ... 44 ...
Page 68: ... 64 ...