User Manual

Axell Wireless Limited
Technical Literature
UHF Dual Band Line Amplifier
Document Number 55-227901HBK
Issue No. 4
Date 23/06/2014
Page 28 of 30
Appendix A
A.1. Glossary of Terms used in this document
Repeater or
Cell Enhancer
A Radio Frequency (RF) amplifier which can simultaneously amplify and re-broadcast
Mobile Station (MS) and Base Transceiver Station (BTS) signals.
Band Selective
Repeater
A Repeater designed for operation on a range of channels within a specified frequency
band.
Channel Selective
Repeater
A Repeater, designed for operation on specified channel(s) within a specified frequency
band. Channel frequencies may be factory set or on-site programmable.
AC
Alternating Current
AEM
Axell Element Manager (Network control and monitoring software)
AGC
Automatic Gain Control
BBU
Battery Backup Unit
BDA
Bi-directional Amplifier
BTS
Base Transceiver Station (Base Station)
B/W
Bandwidth
C/NR
Carrier-to-Noise Ratio
Critical Harness
A coaxial cable harness with components of a critical length used to minimise phase
discrepancies when joining signal paths of differing frequencies.
DAS
Distributed Antenna System
DC
Direct Current
Downlink (D/L)
Signals transmitted from the BTS to the Mobiles
DSP
Digital Signal Processing
F/O
Fibre Optic
GND
Ground
ID
Identification (Number)
I/P
Input
LCX
Leaky Coaxial Cable (Leaky Feeder).
LED
Light Emitting Diode
LNA
Low Noise Amplifier
LPA
Low Power Amplifier
Mobile(s)
Hand-portable or other “Mobile” RF Transceiver equipment
MOU
Master Optical Unit
MTBF
Mean Time Between Failures
N/A
Not Applicable
N/C (of Relays)
Normally Closed
N/O (of Relays)
Normally Open
OFR
On Frequency Repeater
OIP3
Output Third Order Intercept Point
O/P
Output
P1dB
1dB Compression Point
PA
Power Amplifier
RF
Radio Frequency
RHNC
Relative Humidity, Non Condensing
RMC
Repeater Maintenance Console (a GUI based Repeater management application)
RSA
Receiver/Splitter Amplifier
RX
Receiver (Received)
SDR
Software-Defined Radio
S/N
Serial Number
TX
Transmitter (Transmitted)
Uplink (U/L)
Signals transmitted from the Mobiles to the BTS
UPS
Uninterruptible Power Supply
VSWR
Voltage Standing Wave Ratio
WDM
Wave division multiplex
Date Format
Date Format used in this document is dd/mm/yyyy