Digital Repeater Line
DSP85 Series
WESTELL.COM
© 2016 Westell Technologies
14 June 2016 Doc. No. 960-1666-MNL rJ
1.877.844.4274
Page 21 of 77
2.4.2
Antennas
Use omnidirectional antennas indoors, and locate them centrally with respect to the intended
coverage area to minimize signal leakage to the outside. Use directional antennas indoors only in
special cases when higher gain and directionality would be helpful and RF exposure limits will not be
exceeded.
To avoid repeater uplink overload and gain limiting, mount the indoor antennas away from areas
where mobile subscribers frequently use their phones such as desks or dispatch areas.
To determine the quantity and locations of indoor antennas, use an appropriate phone’s signal meter
to determine areas of weak signals. These are the approximate areas where indoor antennas may be
needed. Be aware the signal from an indoor antenna, in most cases, can be expected to penetrate
about two standard office sheetrock-type walls to reach users. After two walls, or if the walls are
made of other materials, it may be necessary to split the available signal and add more antennas.
2.5
Optional Accessories
A complete line of accessories is available from Westell. Check with your Westell distributor for any additional items
needed. Below are just a few examples suitable for most in-building needs:
2.5.1
Outside Donor Antenna
PCS - model number CSI-AY/1.85-1.99/10
Cellular - model number CSI-AY/806-960/14
2.5.2
Inside Omnidirectional Antenna
Quad-band - model number ClearLink-O/698-2.7K/N
2.5.3
Power Dividers
2:1 - model number ClearLink -SPD2/698-2.7K-LP/N
3:1 - model number ClearLink -SPD3/698-2.7K-LP/N
4:1 - model number ClearLink -SPD4/698-2.7K-LP/N
2.5.4
Grounding Kit
Model number CSI-GKIT
