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9
Installation
Caution:The MC-8000 DSC will only operate with a nominal 12 volt negative ground battery
system.
It is important to carefully determine the most suitable location for your radio on your vessel.
Electrical, mechanical, and environmental considerations must all be taken into account. You
should select the optimum relationship among these considerations.
Keep in mind the flexibility designed into the
MC-8000 DSC
so that you can most conven-
iently use it. Features which should be considered are:
1. The universal mounting bracket may be installed on either the top or bottom of a shelf, on
a bulkhead, or for overhead mounting.
2. The REMOTE speaker wires can be used with an auxiliary speaker.
3. All connections are “plug-in” type for easy removal of the radio.
Choosing a Location
Some important factors to consider in selecting the location for your
MC-8000 DSC
.
1. Select a location that is free from spray and splash.
2. Keep the battery leads as short as possible. Direct connection to the battery is most
desirable.
3. Keep the antenna lead as short as possible. Long antenna leads can cause substantial
loss of performance for both receiving and transmitting.
4. Locate your antenna as high as possible and clear from metal objects. The reliable range
of coverage is a direct function of the antenna height.
5. Select a location that allows free air flow around the heat sink on the rear of the radio.
6. Select a location well away from the ship’s compass. Auxiliary speakers also should be
located away from the compass.
Engine Noise Suppression
Interference from the noise generated by the electrical systems of engines is sometimes a
problem with radios. The
MC-8000 DSC
has been designed to be essentially impervious to
ignition noise and alternator noise. However, in some installations it may be necessary to
take measures to further reduce the effect of noise interference. All DC battery wires, an-
tenna lead, and accessory cables should be routed away from the engine and engine com-
partment, and from power cabling carrying high currents.
Installing the MC-8000 DSC
After you have carefully considered the various factors affecting your choice of location,
position the radio (with the bracket, microphone, power cord, antenna and any auxiliary ca-
bles installed) into the selected location to assure there is no interference with the surround-
ing items. Mark the location of the mounting bracket. Remove the bracket from the radio and
use it as a template to mark the holes to be drilled for the mounting hardware. Drill the holes
and mount the bracket with hardware compatible with the material of the mounting surface.