2
. Introduction
Allgon repeaters are used to fill out uncovered areas in cellular mobile
systems, such as base station fringe areas, road tunnels, business and
industrial buildings, etc.
A repeater receives signals from a base station, amplifies and retransmits
the signals to mobile stations. Also it receives, amplifies and retransmits
signals in the opposite direction. Both directions are served
simultaneously.
To be able to receive and transmit signals in both directions, the repeater
is connected to a donor antenna directed towards the base station and to
a service antenna directed towards the area to be covered.
Control of the repeaters is performed using a desktop or notebook loaded
with the Allgon OMT32,
Operation and Maintenance Terminal, which can
communicate with the repeaters, either locally or remotely via modem.
Remote operation can be performed either via a traditional telephone line
or via a mobile phone that can be installed inside the repeater.
To be able to control many Allgon AR repeaters in common, there is an
Allgon OMS,
Operation and Maintenance System.
The compact repeater is described in this manual. OMT32 is described in
the
AR Repeaters and OMT32, User’s Manual. OMS is described in the
Advanced Repeater OMS, User’s Manual.
Figure 2-1. Allgon ALR Compact Repeater
ALLGON Systems AB
ALR Compact Repeater
Introduction
VD203 67/EN - User’s Manual
Rev. 1A 2000-07
2 - 1
