User's Manual

Table Of Contents
Advanced RF Technologies, Inc.
25
4.4 Line of Sight
The donor antenna which points towards the eNode-B (or BTS) typically has a narrow beam antenna pattern.
As a result, a slight deviation away from the direction of the eNode-B (or BTS) can lead to less than optimal results.
In addition, obstacles between the repeater and the eNode-B (or BTS) may impair the repeater from obtaining any
eNode-B (or BTS) signal. As a result, the repeater cannot transmit signal to the coverage area. Therefore, a direct
line of sight to the eNode-B (or BTS) for the donor antenna is vital to the operation of a repeater. For the same
reason, placing the server antenna in direct line of sight of the coverage area is also necessary.
Figure 4-4 Line of Sight to the eNode-B (or BTS)