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Page 4
AIT2000 Installation & Operation Manual
VERSION 1.01
1
NOTICES
When reading this manual please pay attention to warnings marked with the warning triangle shown on
the left. These are important messages for safety, installation and usage of the product.
1.1
Safety Warnings
This equipment must be installed in accordance with the instructions provided in this manual. DO NOT in-
stall the equipment in a flammable atmosphere such as in an engine room or near to fuel tanks.
The Digital Yacht AIT2000 is an aid to navigation and must not be relied upon to provide accurate naviga-
tion information. AIS is not a replacement for vigilant human lookouts and other navigation aids such as
Radar. The performance of the AIT2000 may be seriously impaired if not installed as instructed in the user
manual, or due to other factors such as weather and or nearby transmitting devices. Compatibility with
other systems is reliant on third party systems recognising the standard outputs from the AIT2000. Digital
Yacht reserves the right to update and change these specifications at any time and without notice.
1.2
Position source
All marine Automatic Identification System (AIS) transponders utilise a satellite based location system such as the
Global Positioning Satellite (GPS) network. The accuracy of a GPS position fix is variable and is affected by factors
such as the antenna positioning, how many satellites are used to determine a position and how long satellite in-
formation has been received for.
1.3
Compass safe distance
The compass safe distance of this unit is 0.5m or greater for 0.3° deviation. We suggest you always mount the
unit 1m away from any compass and check for any localised interference
1.4
RF emissions notice
Caution: The AIS transponder generates and radiates radio frequency electromagnetic energy. This equipment
must be installed and operated according to the instructions contained in this manual. Failure to do so can result
in personal injury and / or AIS transponder malfunction. Caution: Never operate the AIS transponder unless it is
connected to a VHF antenna.
To maximise performance and minimise human exposure to radio frequency electromagnetic energy you must
make sure that the antenna is mounted at least 1.5 metres away from the AIS transponder and is connected to
the AIS transponder before power is applied. The system has a Maximum Permissible Exposure (MPE) radius of
1.5m. This has been determined assuming the maximum power of the AIS transponder and using antennas with a
maximum gain of 3dBi.The antenna should be mounted 3.5m above the deck in order to meet RF exposure re-
quirements. Higher gain antennas will require a greater MPE radius. Do not operate the unit when anyone is
within the MPE radius of the antenna (unless they are shielded from the antenna field by a grounded metallic
barrier). The antenna should not be co-located or operated in conjunction with any other transmitting antenna.
The required antenna impedance is 50 Ohms.
