Onwa Marine Electronics KR-1338C v.1 - Manual (Page 60)

6. Fasten the ground wire (black) of the signal cable to the chassis as shown in
Figure 6-13.
7. Loosely fasten the antenna housing cover. You will tighten the fixing bolts after
confirming magnetron heater voltage.
6.2 Display Unit Installation Mounting considerations
When selecting a mounting location for the display unit keep in mind the
following points.
Even though the display unit is waterproof, it is recommended that the
Provide adequate space behind and around the unit to permit circulation of
Even though the picture is quite legible even in bright sunlight, keep the
display unit out of direct sunlight or at least shaded because of heat that can
Locate the display unit in a position where you can view and operate it
conveniently but where there is no danger of salt or fresh water spray or
display unit must be mounted inside an enchosed cabinet.
air and to provide convenient access to the rear connectors.
build up inside the cabinet.
The orientation of the display unit should be so the radar screen is viewed
while the operator is facing in the direction of the bow. This makes
Make sure you allow enough clearance both to get to the connectors behind
the unit and to allow you to get your hands in on both sides to loosen or
tighten the mounting knobs. Make sure you leave at least a foot or so of
"service loop" of cables behind the unit so it can be pulled forward for
The compass safe distance of 0.8 meters (standard compass) and 0.6 meters
(steering compass) should be observed to prevent deviation of the magnetic
immersion.
determination of your position much easier.
servicing or easy removal of the connectors.
compass.
Mounting
The display unit is designed to be mounted on a tabletop or bulkhead.
1.
2.
3. Using the hangar as a template, mark screw locations in the mounting location.
Fix the hanger to the mounting location with four M6 tapping screws(supplied).
Fit the knob bolts to the display unit. Install the display unit in the hunger.
Tighten the knob bolts securely.
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