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All Rights Reserved Shyam Telecom Limited 10/36
Next Generation
Signal Enhancement
6.3 Conforming To International Standards
The repeater systems, designed, manufactured and supplied by Shyam
Telecom conform to international technical standards like ETSI and further
conform to the entire international safety requirement for installation,
operation and maintenance.
6.4 Repeater Systems-Introduction
Mobile Communications Systems are planned as cellular systems and each
cell of the base station is required to provide RF coverage over a certain
geographical area as per defined RF power levels. Due to the physics of
radio propagation, even using high radiated RF powers or complicated
antenna systems, there are zones within the coverage area where the RF
signal strength from base station remains inadequate for establishing the
desired connectivity to mobile users.
Repeaters traditionally are inducted in the Mobile Communication network
to fill in the “Dead Zones” caused by blocking of signals by geographic
topologies such as mountains, valleys, dense foliage, high rising urban
landscapes and other man-made structures. The distance from the base
station also adversely affects the RF signal strength. The user views
repeaters as a means to extend base station coverage so as to reduce the
number of base stations and thereby accelerate network availability.
Repeater systems are installed after meticulous planning between BTSs
and the mobile users to provide RF coverage in the shadowed regions.
Repeater systems are available for different applications and
ultimate
choice
shall depend on some of the factors mentioned below:
•
Area to be provided with coverage.
•
Indoor/outdoor coverage.
•
Availability of BTSs in the vicinity.
•
Antenna isolation to be achieved.
