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)
Summary of Contents for SCM4000
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