User's Manual

14221-1200-4010, Rev. B

8.2.2 Installing NMO Magnetic Antenna Mounts AN-125001-007 and -008

Thoroughly clean the bottom of the magnetic mount and the selected vehicle mounting surface by

removing all dust, dirt, etc.

Carefully place the magnet mount onto the metal surface of the vehicle at the selected location. The coax

cable exiting the mount’s base should be orientated towards the point at which it will enter into the

interior of the vehicle. Do not try to reposition it by sliding it on a painted metal surface.

Route the mount’s coax cable to the radio location, passing it by the trunk lid’s perimeter gasket, door

perimeter gasket, etc., as necessary.

Install the antenna element per the procedure in Section 8.2.4.

To remove a magnetic antenna mount, hold it at the bottom of its base and tilt it at an angle

to release the magnetic attraction force. Do not pull on the mount’s coax cable. Do not

drag the mount across the mounting surface.

8.2.3 Installing all Other Antenna Mounts

For any other type of antenna mount not covered in the previous sections, such as GPS combination

antennas, install the mount in accordance with the installation instructions included with the mount.

8.2.4 Attaching NMO Antenna Elements

1. Clean the top surface of the NMO mount and the surface of the vehicle immediately around the

mount.

2. Place the gasket included with the antenna element (not pictured in Figure 8-3 or Figure 8-4) around

the mount and against the surface of the vehicle. If a lubricant or sealant was included with the

gasket, apply it to the gasket before placing the gasket.

3. Apply the antenna element to the top of the mount and tighten it in a clock-wise direction (as viewing

from the top). Use an appropriate wrench if required. Do not over-tighten.

If the mobile radio installation employs a ¼-wave unity-gain antenna (part number

AN102800V1 or AN-225006-001), the antenna element must be trimmed to the proper

length in order to minimize antenna system Voltage Standing-Wave Ratio (VSWR). Refer

to Figure 8-5 on page 47 and/or the instructions included with the antenna for trimming

instructions.

4. Install a placard (not supplied) on the vehicle’s dash panel, in accordance with the following

CAUTION. Place the placard in plain view of the vehicle operator’s position.

Before entering any automatic vehicle (“car”) wash equipment, remove the antenna

elements from the antenna mounts, and secure the elements in a safe location inside the

vehicle. This will prevent the wash equipment from damaging the elements and/or mounts.

After exiting the wash equipment, thoroughly dry the top of the mount before re-installing

the elements.

5. Continue with the connection procedure presented in the next section.

NOTE