User's Manual

ABBREVIATIONS AND ACRONYMS
ABBREVIATIONS AND ACRONYMS
AC Alternating Current
ALC Automatic Level Control
BDA Bi-Directional Amplifier
BTS Base Transceiver Station
DC Direct Current
DCS Digital Cellular System
EGSM Enhanced Global System for Mobile Communications
EMC Electro-Magnetic Compatibility
FET Field-Effect Transistor
GSM Global System for Mobile Communications
GSM-R GSM - Railway
HPA High Power Amplifier
IF Intermediate Frequency
IP3 Third order Intercept Point
LNA Low Noise Amplifier
MMIC Monolithic Microwave Integrated Circuit
MS Mobile Station
MTBF Mean Time Between Failures
MU Master Unit
NF Noise Figure
OMC Operation and Maintenance Center
OMT Operation and Maintenance Terminal
PC Personal Computer
PEP Peak Envelope Power
PLL Phase-Locked Loop
PSTN Public Switched Telephone Network
RAM Random Access Memory
RF Radio Frequency
RL Return Loss
RU Remote Unit
SAW Surface Acoustic Wave
SIM Subscriber Identity Module
SPV Supervision
TTL Transistor, Transistor, Logic
UMTS Universal Mobile Telecommunications System
UPS Uninterruptible Power Supply
VCO Voltage Controlled Oscillator