User's Manual

14221-1200-4010, Rev. B
45
Figure 8-3: Installing a Standard ¾-Inch NMO Antenna Mount
(e.g., AN-125001-001 or AN-125001-002)
Figure 8-4: Installing a Thick-Roof NMO Antenna Mount
(e.g., AN-125001-003 or AN-125001-004)
13. Using a
15
/
16
-inch open-end wrench, tighten the lock nut until it fully compresses the O-ring and
makes good contact with the vehicle mounting surface. The groove’s ridges on the bottom of the lock
nut must make full contact with the unpainted metal surface of the vehicle.
14. Install the antenna element per the procedure in Section 8.2.4.
Coax Cable (Partial)
Rubber O-Ring (C)
Vehicle Mounting Surface
(top side)
Bushing Assembly (A)
Lock Nut (D)
Threaded Shank (B)
Coax Cable (Partial)
Vehicle Mounting Surface
(top side)
Bushing Assembly (A)
Alignment Ring
(Used only with ¾-inch mounting hole)
Rubber O-Ring (C)
Lock Nut (D)
Threaded Shank (B)
(Extensions shown to illustrate a
⅜-Inch hole vs. a ¾-inch hole.)