Microwave Radio Communications SCM4000, Техническое справочное руководство

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Glossary A-4 SCM4000 Operator’s Guide/Tech Ref Manual
EBU European Broadcasting Union
In addition to other activities, EBU produces technical
statements and recommendations for PAL television
systems.
EMC Electromagnetic compatibility.
Emphasis Boosting the amplitude of high frequency
components of an analog audio signal. Done on the
transmit side of an analog link to improve signal-to-
noise ratio.
ENG Electronic News Gathering
ERRS Errors
ESD Electrostatic Discharge
ET Eastern Time (US)
ETSI European Telecommunications Standards Institute
EVM Error Vector Magnitude
FCC Federal Communications Commission
The United State's communications regulatory
agency.
FDM Frequency Division Multiplexing
FEC Forward Error Corrections
FFT Fast Fourier Transform
FIFO First In, First Out buffer
FIR Finite Impulse Response
FMT FM Video Modulator or FM Transmitter
FPGA Field Programmable Gate Array
FSK Frequency-Shift Keying
FW Firmware
Table A-1: Useful Terms (Continued)
GHz
Gigahertz (10
9
cycles per second)
GI Guard Interval
GND Ground
GUI Graphic User Interface
HDB3 High Density Bipolar 3 line code format for traffic
data.
HPF High Pass Filter
HPU High Power Unit
H/W or HW Hardware
ICI Inter-Carrier Interference
ID Identification
IDU Indoor Unit
IF Intermediate Frequency
IMD Inter-Modulation Distortion
I/O Input/Output
IRD Integrated Receiver Decoder
IRE 1. Institute of Radio Engineers, an international
professional radio engineering association that
establishes various standards.
2. A unit of measurement, established by the IRE, in
which 1 IRE Unit =.00714 volts peak-to-peak (Vp-p)
and 140 IRE units equals 1 Vp-p.
ISI Inter-Symbol Interference
ISO International Standards Organization
kbps Kilobits per second
kHz Kilo (1,000) cycles per second
LAN Local Area Network
Table A-1: Useful Terms (Continued)