FS1575_2575_5075 Installation Manual E1 6-15-2012 - Furuno USA

1. HOW TO INSTALL THE SYSTEM
1.2 Antenna Coupler AT-1575 (FS-1575), AT-5075
(FS-2575, FS-5075)
The Antenna Coupler is installed between the antenna and the Transceiver Unit, and tunes the
antenna to the transmitter. The coupler must have a correct ground to function properly. The radiotelephone
cannot provide its intended performance unless the ground is proper.
DANGER
ELECTRICAL SHOCK HAZARD
Do not touch lead-in wire or
insulator. Electric shock, fire,
serious injury or death can
result if the cables or insulator
are touched while the
radiotelephone is transmitting.
Do not touch.
Pictured: AT-5075
1.2.1 Installation location
The water-jetsproof construction of the antenna coupler permits installation either indoors or outdoors.
Install the unit on a bulkhead or the overhead (indoor installation). Do not install the unit on
a deck.
When selecting a location, keep in mind the following points.
General considerations
• Select a location where the coupler can be easily maintained, but where it will not interfere with
crew or passengers.
• Follow the compass safe distances listed in the Safety Instructions to prevent interference to a
magnetic compass.
• Leave enough space around the sides of the coupler for maintenance and checking. See the
outline drawing for minimum space.
• Install the coupler close to the antenna base and as near to the ground as possible, for optimum
radio energy.
• The lead-in wire should be as near to the coupler as possible.
Indoor installation
• Install the unit away from GNNS equipment, radio equipment, etc. to prevent mutual interference.
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