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(continued) 
17 
Electromagnetic Interference/Compatibility 
Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, 
designed, or otherwise configured for electromagnetic compatibility. It may be necessary to conduct 
compatibility testing to determine if any electronic equipment used in or around vehicles or near fixed sites 
equipped with mobile radio equipment is susceptible to the RF energy emitted by the mobile radio antenna, 
and if any measures need to be implemented to eliminate or mitigate the potential for EMI between the radio 
transmitter and the electronic equipment. 
 
Vehicles 
To avoid possible interference between the radio transmitter and any vehicle electronic control modules, such 
as ABS, engine, or transmission control modules, your mobile radio should be installed only by an 
experienced installer, using the following precautions when installing the radio: 
1. Refer to the manufacturer’s instructions or other technical bulletins for recommendations on radio 
installation. 
2. Before installing the radio, determine the location of the vehicle electronic control modules and their 
harnesses within the vehicle. 
3. Route all radio wiring, including the antenna cable, as far away as possible from the electronic control units 
and associated harnesses.