JMA-9100/7100 Installation Manual > 3.INSTALLATION OF DISPLAY UNIT > 3.1 INSTALLATION OF DISPLAY UNIT
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3.1 INSTALLATION OF DISPLAY UNIT
• Installation should be executed in reference to the exterior drawings shown in
the following section and those sections thereafter.
• Install the monitor unit so that when the user is looking ahead, the lookout
view is not obscured. The orientation of the display unit should be such that the
user is looking ahead. The lookout view should not be obscured and the
ambient light should cause minimum degration on the display.
• Install the unit away from direct sunlight and heat source. When the desktop
type display unit is installed into the console, pay attention that its ambient
temperature does not exceed +55 degrees Celsius.
• Eliminating the interference on frequencies used for marine communications
and navigation due to operation of the radar. All cables of the radar are to be
run away from the cables of radio equipment. (ex. radiotelephone,
communications receiver and direction finder. etc..) Especially inter-wiring
cables between scanner unit and display unit of the radar should not be run
parallel with the cables of radio equipment.
• By using an attached earth plate
1, 2
, be sure to securely ground the display unit
to the hull's earth.
• Install the display unit at least the compass safe distance
3
away from nautical
instruments including magnetic compasses and chronometers.
1. As an earth plate, a JRC code: MTB349814A is included in the self-
standing display unit of NCD-4990 and NCD-4790.
2. As an earth plate, a JRC code: MTB349495 is included in the desktop
display unit of NCD-4990T and NCD-4790T.
3. For more detail on the compass safe distance, refer to the instruction
manual chapter 11.
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