Installation Manual

MN003109A01_aa
5-4 Motorcycle Radio Installation Installation Overview
5.2.2 Important Motorcycle Installation Hints
Consider the following when mounting the radio components:
• Excess lengths of control-head, power, ignition sense, and speaker cables must be routed in
the enclosure as shown in Figure 5-19.
• All components must be mounted securely in order to withstand the constant and sometimes
severe vibration experienced on a motorcycle.
• No cantilever action, which could cause severe vibration, should be generated in the mounting
hardware.
• The control head and microphone must be placed for ease of accessibility by the motorcycle
operator.
• Forward components (control head, microphone, and speaker) should not interfere with visual
or physical access to controls and instruments.
• Forward components should not interfere with the handling of the motorcycle.
• Cabling between the control head and the radio chassis should be run to minimize interference
with operator movements.
• The weather-resistant enclosure should be placed to avoid any interference with the motorcycle
operator.
• Electrical continuity must be present through the enclosure shock mounts to the motorcycle
frame for proper electrical and RF grounding.
• The antenna(s) are designed for mounting on the top of the weather-resistant enclosure and an
adequate metal ground plane.
• Only the supplied microphone mounting clip should be used to ensure secure mounting of the
microphone. This clip has a very strong spring to ensure positive retention of the microphone
over rough terrain. Also, there must be electrical continuity from this clip to the motorcycle
frame for DC grounding.
• Direct access to the microphone should be provided from both sides of the motorcycle.
• Sufficient slack in the microphone coiled cord should be allowed so as not to impede steering.
• Mounting hardware must be stainless steel to prevent corrosion.
• If an extra length of cable is used to extend the microphone, ensure that the added capacitance
does not interfere with the operation of the radio.
• A suitable covering should be applied to the DB-9 receptacle when the water resistant
microphone (HMN1079) is not connected.
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