Installation guide
LMU-4200™ Hardware and Installation Guide  
V1.0.9    November 13, 2010 
Copyright ©CalAmp DataCom Inc 2010
  - 17 -  CalAmp Proprietary & Confidential 
The ideal location is typically near the center of the vehicle’s roof. However, it is also 
desirable to locate the cellular antenna as far from the GPS antenna as possible. 
Figure 8 - GPS Antenna Location 
2.3.4  Mount the Comm. Antenna. 
When using separate Comm and GPS antennas, it is best to locate the Comm. Antenna at 
least 3 feet from the GPS antenna. Ensure that the cable is not crushed during installation or 
normal vehicle operation. 
Again, the Comm. Antenna must be located at least 20cm away from vehicle passengers, 
other personnel, or bystanders in order to comply with FCC radio frequency exposure limits. 










