Interference from the impulse noise gen- erated by the electrical systems of engines is sometimes a problem with radios. The
MC790 has been designed to be
essentially impeNious to ignition impulse noise and alternator noise. However, in
some installations it may be necessary to take measures to further reduce the effect
of no;.<;c interference. All DC t)auc(y
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wires, antenna lead, and accessory cables should be routed away from the engine and engine compartment and from power cabling carrying particularly high currents.
In severe cases of Lmpulse noIse interfer- ence, it may be necessary to install a noise
suppression kit that is available from your M':Hinc DCcl/er.
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