User Manual

Glossary B-3STRATA TX Operator’s Guide/Tech Ref Manual
DQPSK Differential Quadrature (Quaternary) Phase-Shift
Keying
DRL Data Return Link
DTE Data Terminal Equipment
A device that communicates with a DCE device. In
practical terms, the DTE is usually a computer and
the DCE device is usually a modem.
Duplex A channel capable of transmitting information
simultaneously in both directions.
DVB Digital Video Broadcasting
DVB-ASI Digital Video Broadcasting - Asynchronous Serial
Interface
A widely-used MPEG-2 digital transport interface.
Physically the connection is made either with optical
fiber or 75 ohm coax with a BNC connector. Interface
can support data rates up to 270 Mb/sec.
DVB-C Digital Video Broadcasting - Cable
DVB-S Digital Video Broadcasting - Satellite
DVB-T Digital Video Broadcasting - Terrestrial
E1 2.048 Mbps data rate.
EIA Electronic Industries Association
An industry association that establishes various
standards.
EBU European Broadcasting Union
In addition to other activities, EBU produces technical
statements and recommendations for PAL television
systems.
Table B-1: Useful Terms (Continued)
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.
ERRS Errors
ESD Electrostatic Discharge
ETSI European Telecommunications Standards Institute
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
GHz
Gigahertz (10
9
cycles per second)
GI Guard Interval
GND Ground
GUI Graphic User Interface
H/W or HW Hardware
HPF High Pass Filter
HPU High Power Unit
ICI Inter-Carrier Interference
Table B-1: Useful Terms (Continued)