User's Manual

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 45/346
104
Figure 14 – Mounting a second antenna
1. Thread a nut roughly 10 mm (3/4 in.) onto each of the two antenna bolts.
2. Connect the top of the antenna to the top of the mounting plate by inserting one of the antenna bolts
through a lock washer, a flat washer, mounting plate antenna bolt channel, the adjustment screw
plate, a spacer and the upper antenna bolt hole. Add a flat washer, a lock washer and a nut to the
antenna side of the antenna bolt, and tighten both bolts to 54.4 Nm, ± 2.7 Nm (40 ft-lb, ± 2 ft-lb) of
torque.
3. Connect the bottom of the antenna to the bottom of the mounting plate by inserting the remaining
antenna bolt through a lock washer, a flat washer, the lower mounting plate antenna bolt hole, a
spacer and lower antenna bolt hole. Add a flat washer, a lock washer and a nut to the antenna side
of the antenna bolt, and tighten both bolts to 54.4 Nm, ± 2.7 Nm (40 ft-lb, ± 2 ft-lb) of torque.
To ground the X-Pol RBS Tx or X-Pol RBS Rx
The following parts and supplies are required:
– an adequate length of ground conductor,
– an M8 ring lug,
– dielectric paste.
1. Measure a length of ground conductor sufficient to run from the X-Pol RBS Tx or X-Pol RBS Rx to
the nearest suitable ground point. The required diameter, metal type and physical type of the ground
conductor may vary according to local regulations. Consult local electrical authorities for information.
2. Connect an uninsulated M8 ring lug connector securely to one end of the ground conductor using a
suitable mechanical connection method.
3. Apply an appropriately rated dielectric paste liberally to both sides of the ring lug.
4. Connect the ring lug to the X-Pol RBS Tx or X-Pol RBS Rx case ground connection point using the
ground bolt, as shown in Figure 15. Tighten the bolt to 13.5 Nm (10 ft-lb) of torque.
Antenna bolt
and nut
Lock washer
Flat washer
Spacer
Antenna 2
Antenna 1