User's Manual

Bi-directional Amplifiers

510 and 610 Series

WESTELL.COM

1.877.844.4274 Page 14 of 29

3 Installation Tips

3.1 Important Installation Tips

A high degree of isolation must be afforded to prevent any re-generative feedback in the system. Feedback of this

kind causes the ampliﬁer to emit a continuous signal of maximum amplitude and could, in some cases, interfere with

normal operation of the cell site. Avoid the use of window mounts or other non-rooftop mountings.

WARNING

Ampliﬁer or handset damage may occur if a handset is connected directly to the

BDA or the coax that leads to the BDA. It is recommended that the BDA be powered

down when cables are connected or disconnected.

3.2 Multiple Internal Antenna System Design