User's Manual

36/70 Issue 01 - April 2001 - Draft 03 3CC12425AAAA TQ BJA 01
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– Rx polarization of the TS antenna,
– desired power level of the downstream signal at the NT F connector (labeled IF In/Out and 35 VDC
Out) (see § 4.2 – Commissioning the NT - Table: Malfunctions to the installation),
– Additionally, the insertion loss value of the test equipment (such as cables, couplers and adapters)
must be measured and recorded for this procedure.
4.1.1.2 – Aligning the X-Pol RT
An X-Pol RT must be aligned with respect to the BS X-Pol RBS Tx and X-Pol RBS RX antennas in order
to receive a reliable signal. Figure 17 – X-Pol RT adjustment bolts shows the bolts used to adjust the
azimuth, elevation and vertical angle of an X-Pol RT in relation to the BS.
To align the X-Pol RT to the BS signal, adjust the X-Pol RT mounting hardware to find a position that
provides the desired signal power level. Acceptable power levels are based on RF planning and analysis
that should be done before an X-Pol RT is installed. Typical signal strengths for various cell radii are
given in Table: Malfunctions to the installation.
Figure 17 – X-Pol RT adjustment bolts
1. Ensure that the NT is switched off.
2. Ensure that the terminal station (TS) has been mounted according to the Radio Network Plan for the
pole height (where applicable), in order to aim the TS at the desired sector of the desired base station
(BS).
3. Determine and record the distance between the TS and the desired Base Station.
Note: All 5916 cable connectors must be tightened to 3.4 Nm (30 in.-lb) of torque, using a
torque wrench equivalent to tool part number 10.168360 (5/8 in. torque wrench) available
from CableTel.
All RG-6/U and RG-59/U cable connectors must be tightened to 3.4 Nm (30 in.-lb) of torque,
using a torque wrench equivalent to tool part number TW-307 (7/8 in. torque wrench)
available from PPC.
Pole elevation
and azimuth bolts
Vertical angle
bolts