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5.5 Verifying the Physical System Setup
•
Check all cables for shorts and opens. Verify that there are no cables with loose or poor
connections. RF leakage could cause oscillation to occur under some conditions.
•
If the rooftop antenna (donor antenna) is directional, check it for proper alignmen t along
the calculated compass heading. Typically, the directional antenna would be aimed at the
same site that your handset uses, but that may not always be the case.
•
If cables and alignment are acceptable, and a problem persists, use a spectrum analyzer to
examine the signal environment in which the unit is operating. The existence of strong
adjacent channel signals within the frequency band(s) can cause the AGC to reduce the
amplifier's gain or cause alarms. In some cases, additional filtering or attenuation may be
required to reject these unwanted signals. In some instances, the donor antenna can be
reoriented horizontally to place the interference source in an antenna pattern null.
5.6 Controlling the Signal Booster
Control and monitoring the Signal Booster requires that a properly configured computer with Westell
PS71090-P8 control software installed is connected via an Ethernet cable, such as the one shown in
Figure 5-2A. Connect the Ethernet cable from the Network Interface port of a computer to the GUI
port on the bottom end panel of the Signal Booster.
©2017 Westell Technologies
1.877.844.4274
Figure 5-2A: Ethernet Cable
Figure 5-2B: Ethernet Connectors
PS71090-P8 Product Manual
March 2018, Rev A
WESTELL.COM
March 2018; Doc No. CS14000802UM rA
Page 28 of 52
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