User's Manual

Table Of Contents

Using Repeaters AR Standard Repeater

044-05250 Rev A 1-13

Combined Repeater

Figure 1-12 illustrates a combined CSel and BSel repeater. The CSel part is located in the

cabinet and the BSel part in a high cover. This example has four bi-directional GSM channels

and BSel operation. Most of the repeater models mentioned in this manual can be mixed as a

combined repeater.

Figure 1-12 Combined Repeater Sub Unit Locations

Using Repeaters

In areas where the radio signal propagation is poor, repeaters can be used to fill out those

areas which are not covered by the base station. Examples include:

• Sports arenas

•Fair halls

• Large shopping centres

• Road and railway tunnels

• Indoors in buildings with metal or concrete walls

• Other examples where repeaters can be used to increase the coverage are:

• Shaded areas

• Fringe coverage areas

In areas where the traffic intensity is low it is not cost efficient to install a base station, so the

use of a repeater is a better, more cost effective oprion.Two examples are described in the

following paragraphs: a shaded valley and an indoor sports arena.

LNA - DL

1234

LNA - UL

PSU

(RCU)

DPX

ALI/RCI

DPX

CHA1

CHA2

CHA3

CHA4

1234

PSU

BSA

DPX DPX

CMB

LNA - DLLNA - UL

CMB

ALI/RCI