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Glossary
A-5
DVC4000
Operator’s Guide/Tech Ref Manual
ESD
Electrostatic Discharge
ET
Eastern Time (US)
ETSI
European Telecommunications Standards Institute
EVM
Error Vector Magnitude
FCC
Federal Communications Commission
The United States 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
FM
Frequency Modulation
FMT
FM Video Modulator or FM Transmitter
FOB
Freight On Board
FPGA
Field Programmable Gate Array
FSK
Frequency-Shift Keying
FTP
File Transfer Protocol
FW
Firmware
Gb
Gigabyte (1024 megabytes)
GHz
Gigahertz (10
9
Hz)
GI
Guard Interval
GND
Ground
Table A-1: Useful Terms (Continued)
GOP
Group Of Pictures
In MPEG encoding, a group of pictures specifies the
order in which intra-frames are arranged. The GOP
is a group of successive pictures within an MPEG-
coded film and/or video stream. Each MPEG-coded
film and/or video stream consists of successive
groups of pictures.
GPS
The Global Positioning System is a set of 24
satellites that are in 10,600-mile orbits above the
Earth. Owned and operated by the U.S. Department
of Defense, GPS enables people with ground
receivers to pinpoint their geographic location.
GUI
Graphic User Interface
Hashed
A visual cue on a graphical user interface consisting
of diagonal lines across the surface of a button. This
indicates that a button is not currently functional.
HD
High Definition (video)
HDB3
High Density Bipolar 3 line code format for traffic
data.
HD-SDI
High Definition Serial Data Interface
A serial communications interface operating at 1.5
Gbit/sec.
HDV
High Definition Video
HPF
High Pass Filter
HPU
High Power Unit
H/W or HW
Hardware
Table A-1: Useful Terms (Continued)