CS40-734834-00D-A0 Product Manual
April 2020, Rev A
WESTELL.COM
© 2019 Westell Technologies
April 2020; Doc No. CS14702802UM rD
1.877.844.4274
Page 33 of 52
5.3 Indoor Antenna Installation Guidelines
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Use omnidirectional antennas (see section 2.4. Optional Accessories) indoors and locate
them centrally with respect to the intended coverage area to minimize signal leakage to the
outside. Only use directional antennas indoors in special cases when higher gain and
directionality would be helpful and RF exposure limits will not be exceeded.
•
To avoid Signal Booster uplink overload and gain limiting, mount the indoor antennas away
from areas where mobile subscribers frequently use their phones / radios, such as desks or
dispatch areas.
Note: If the signal level from antenna at the UL service port is >-12dBm,
add external attenuation to avoid shutdown alarm
•
To determine the quantity and locations of indoor antennas, measure Received Signal
Strength Indication (RSSI) using DM Tool software to determine areas of weak signals. These
are the approximate areas where indoor antennas may be needed.
•
Be aware that the signal from an indoor antenna, in most cases, can be expected to
penetrate approximately two standard sheet rock walls to reach users. If the signal must
travel through more than two walls, or if the walls are made of materials other than sheet
rock, it may be necessary to split the available signal and add more antennas.
