Uniden UM425 English Owners Manual - Page 58
Engine Noise Suppression
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UPC - 050633501221
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Maintenance and Troubleshooting Engine Noise Suppression Interference from the noise generated by the electrical systems of engines is sometimes a problem with radios. The UM425 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. The UM425 radio 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 noise interference, it may be necessary to install a noise suppression kit. Contact the dealer where you purchased the radio for more information. E-54
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Maintenance and Troubleshooting
E-54
Engine Noise Suppression
Interference from the noise generated by the electrical systems of engines
is sometimes a problem with radios. The UM425 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. The UM425 radio 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 noise interference, it may be necessary to install a noise suppression kit.
Contact the dealer where you purchased the radio for more information.