Engine Noise Suppression; Antenna Considerations - Uniden Marine Radio Owner's Manual

Engine Noise Suppression

Interference from the impulse noise generated by the electrical systems
of engines is sometimes a problem with radios. The OCEANUS has
been designed to be essentially impervious to ignition impulse 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, antenna lead, and accessory cables should be routed
away from the engine and engine compartment, and from power cabling
carrying high currents.
In severe cases of impulse noise interference, it may be necessary to
install a noise suppression kit. Contact your Uniden Dealer for more
information.

Antenna Considerations

A variety of antennas are available from a number of quality suppliers. It
is recommended you draw upon the advice of your Uniden Dealer in
determining a suitable antenna for your vessel and range requirements.
In general, communication range is increased by using a high-gain
antenna placed as high as possible above the water line. Antennas
should be located away from metal objects. Antennas should not have
excessively long coaxial feed cables.
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