User's Manual

Table Of Contents

3CC12426AAAA TQ BJA 01 Issue 01 - April 2001 - Draft 04 39/346

104

– attach antennas to mounting plates,

– ground the X-Pol RBS Tx and X-Pol RBS Rx,

– adjust antenna downtilt,

– replace a X-Pol RBS Tx, X-Pol RBS Rx or antenna

BS antennas connect to mounting hardware that is attached to 11.43 cm (4 1/2 in.) outer diameter steel

mounting poles at preselected locations on a rooftop.

The location of the mounting poles, the distance between X-Pol RBS Txs and X-Pol RBS Rxs, the height

of the X-Pol RBS Txs and X-Pol RBS Rxs on the mounting poles, and the polarization of the X-Pol RBS

Tx and X-Pol RBS Rx antennas are determined as part of cell planning. The distance required between

X-Pol RBS Tx and X-Pol RBS Rx antennas is either a horizontal or vertical distance, as shown in Figure

Figure 8 – Distance between X-Pol RBS Tx and X-Pol RBS Rx antennas

2.5.2 – Attaching an X-Pol RBS Tx or X-Pol RBS Rx to an antenna

Each X-Pol RBS Tx and X-Pol RBS Rx must be connected to an antenna in a clean indoor environment,

on a surface that is suitable for electronic assembly, before the antenna is mounted on the BS pole

assembly.

Note - X-Pol RBS Txs, X-Pol RBS Rxs and antennas must be installed and serviced by

trained personnel who are experienced in the local, national and civil electrical and safety

regulations of the area where the equipment is being installed.

Some areas require that only licensed individuals may install and service equipment. Consult

appropriate local authorities prior to installation.

Note - The required inner diameter of a mounting pole must be determined by professional

engineering staff, taking into consideration the torsional and vibrational forces caused by the

wind loading on the pole and on the equipment mounted on the pole, as well as the

distribution of these forces on the supported and unsupported parts of the pole.

X-Pol RBS Tx

X-Pol RBS Rx

Horizontal distance

Vertical distance

Vertical

distance