User Manual

MBF, Multi Band Repeater
PRODUCT DESCRIPTION AND USER'S MANUAL
© Axell Wireless Ltd A 200 93 00, rev E 9 (105)
cable, leaky feeder or optical fibre link.
DL, Downlink The transmission path from the base station down to the mobile station
EAM External Alarm Messaging
EDGE Enhanced Data for Global Evolution. A technology that gives GSM and TDMA
similar capacity to handle services for the third generation of mobile telecom. EDGE
was developed to enable the transmission of large amounts of data at a high speed of
384 kilobit per second, or more.
EMC Electromagnetic Compatibility. The ability of a device or system to function in its
intended electromagnetic environment
ERP Effective Radiated Power
ETSI European Telecommunications Standard Institute. The European standardization
body for telecommunications
GND Ground
Hand-over The passing of a call signal from one base station to the next as the user moves out
of range or the network software re-routes the call
ISI Inter Symbol Interference. An interference effect where energy from prior symbols
in a bit stream is present in later symbols. ISI is normally caused by filtering of the
data streams
LED Light Emitting Diode
Link budget A calculation involving the gain and loss factors associated with the antennas,
transmitters, transmission lines and propagation environment used to determine the
maximum distance at which a transmitter and receiver can successfully operate.
LMT Local Maintenance Terminal
LNA Low Noise Amplifier. A receive preamplifier having very low internal noise
characteristics.
Logical channel A communications channel derived from a physical channel. A physical channel, i.e.
RF channel, typically carries a data stream that contains several logical channels.
These usually include multiple control and traffic channels.
LOS Line of Sight. A description of an unobstructed radio path or link between the
transmitting and receiving antennas of a communications system
MCPA Multi Carrier Power Amplifier
MS Mobile Station (e.g. mobile phone)
MTBF Meantime Between Failures
NA Not Applicable
NC Not Connected
NF Noise Figure
Noise figure A figure of merit for receivers and preamplifiers representing the amount of excess
noise added to the signal by the amplifier or receiving system itself. The lower the
noise figure, the less excess noise is added to the signal
ODF Optical Distribution Frame, used for connection and patching of optical cables
OMC Operations and Maintenance Centre. A location used to operate and maintain a
wireless network