VAF Adjustable Band Selective Repeater
VAF Corp.
Data Communication
Tell:44655121 Fax: 44658496
1General
1.1 Overview
In GSM mobile communication system, limited by the coverage of
base station or by geographic environment, the transmission of signals
may be influenced in shadow or semi-shadow in some areas, generally
referred to as blind area or semi-blind area, bringing serious impact on
voice quality or even causing failure to normal communication. To solve
this problem, apart from adding more base stations, the deployment of
mobile communication repeater, characterized by quick expansion of
coverage and reduction of cost, shall be an ideal cost-effective choice of
high efficiency.
Wireless transmission repeater of GSM mobile communications is an
important tool to expand network coverage, enhance network capacity,
reduce network cost and realize network optimization. Wireless
transmission repeater of GSM mobile communications is meant to
amplify communication signal, extend network coverage, to improve
communication quality by amplifying some weak received signal and
expanding the signal coverage and to distribute traffic load in various
base stations with efficiency.
In the course of GSM network optimization, wireless transmission
repeater of GSM mobile communications offers a wide variety of
application, and has become an indispensable part of network system. In
some areas, such as satellite cities of some large cities, remote
residential areas, countries and towns or other blind areas or shadow
areas formed due to the natural or human obstacles (such as high
mountains, large buildings, tunnels or underground stores), optical fiber
transmission repeater of GSM mobile communications shall be the most
economical and reasonable solution to the effective coverage of these
