Typical installations will place the LMU under the vehicle dash board, or in the trunk. Make sure you
can get access to the unit afterwards as under some circumstances it may be necessary to add
additional wiring or connections to the LMU.
5.2.2 Placement of Antennas
There are effectively three options for placements of an antenna:
Roof-mount (magnetic or thru-hole)
Glass-mount
Covert (e.g. under the seat, dash, etc…)
Comm Antenna Placement Guidelines
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.
Typically, the Comm antenna used by the LMU for wireless service is a standard 3-dB gain whip. It
mounts with standard mounts (i.e. thru-hole, magnetic mount or peel and stick) and requires a ground
plane to work properly. If possible, it should be located at least 3 feet from the GPS antenna. Ensure
that the cable does not get crushed during installation.
Please note that the antennas provided by CalAmp combine both the GPS and Comm portions.
