User Manual

MBF, Multi Band Repeater
PRODUCT DESCRIPTION AND USER'S MANUAL
© Axell Wireless Ltd A 200 93 00, rev E 8 (105)
Definitions, Abbreviations and Acronyms
AEM Axell Element Manager
A software tool for operation and monitoring a network consisting of Axell Wireless
products.
Previous name of this product was Avitec Element Manager.
ALC Automatic Limit Control
Antenna The part of a radio transmission system designed to radiate or receive
electromagnetic waves
Antenna
beamwidth
More properly referred to as the half-power beamwidth, this is the angle of an
antenna pattern or beam over which the relative power is at or above 50% of the
peak power
Antenna
directivity
This is the relative gain of the main beam of an antenna pattern to a reference
antenna, usually an isotropic or standard dipole
Base station The central radio transmitter/receiver that maintains communications with a mobile
radio equipment within a given range
BCCH Broadcast Control Channel
BTS Base Transceiver Station, one part of a base station.
A base station is composed of two parts, a Base Transceiver Station (BTS) and a
Base Station Control Module (BSC). A base station is often referred to as BTS.
The BTS is also sometimes called an RBS or Remote Base Station.
Carrier-to-
interference ratio,
C/I
The ratio of power in an RF carrier to the interference power in the channel
Carrier-to-noise
ratio, C/N
The ratio of power in an RF carrier to the noise power in the channel
Channel In all Axell Wireless documentation a channel is the same as a carrier.
Coverage area The geographical reach of a mobile communications network or system
Coverage hole An area within the radio coverage footprint of a wireless system in which the RF
signal level is below the design threshold. Coverage holes are usually caused by
physical obstructions such as buildings, foliage, hills, tunnels and indoor parking
garages
dB Decibel, A technique for expressing voltage, power, gain, loss or frequency in
logarithmic form against a reference.
dBi Decibels referenced to an isotropic antenna. A technique for expressing a power gain
measurement in logarithmic form using a theoretical isotropic antenna as a reference
dBm Decibels referenced to 1 mW. A technique for expressing a power measurement in
logarithmic form using 1 mW as a reference.
Dead spot An area within the coverage area of a wireless network in which there is no coverage
or transmission falls off. Dead spots are often caused by electronic interference or
physical barriers such as hills, tunnels and indoor parking garages. See also coverage
area.
Distributed
antenna system
A type of antenna system that is distributed or remotely located away from the
transmitter. Such an antenna or series of antennas can be connected via coaxial