User's Manual

SDR Repeater
User Manual V0.4
Page | 18
3.5.5 Line of Sight
The donor antenna which points towards the base station typically has a narrow beam antenna pattern. As a result,
a slight deviation away from the direction of the BTS can lead to less than optimum results. In addition, obstacles
between the repeater and the BTS may impair the repeater from obtaining any BTS signal. As a result, the repeater
cannot transmit signal to the coverage area. Therefore, a direct line of sight to the BTS for the donor antenna is vital
to the function of a repeater. For the same reason, placing the server antenna in direct line of sight of the coverage
area is also necessary.
Figure 12 - Direct Line of Sight to the BTS