User`s manual

100-M0070X2 4 of 26
www.cobham.com/gms
1 Acronyms
This section lists and describes the various acronyms used in this document.
Name Meaning
16QAM 16-State Quadrature Amplitude Modulation
64QAM 64-State Quadrature Amplitude Modulation
A Amperes
A/V Audio/Video
AES Advanced Encryption System 32 bit
ABS Messenger Basic Scrambling 8 bit
ASI Asynchronous Serial Interface
BDC Block Down Converter
COFDM Coded Orthogonal Frequency Division Multiplexing
CVBS Composite Video
D/C Down-Converter
DDPC Digital Data Processing Card
DVB-T Digital Video Broadcasting - Terrestrial
FEC Forward Error Correction
GUI Graphical User Interface
I/O Input/ Output
Kbaud Kilobaud per second
Kbps Kilobits per second
LO Local Oscillator
Mbps Megabits per second
MDL Messenger Digital Link
MDR Messenger Digital Receiver
MDT Messenger Digital Transmitter
MSR Messenger Smart Receiver
MER Modulation Error Rate
MPEG Moving Picture Experts Group
NTSC National Television System Committee
PAL Phase Alternation Line
QPSK Quadrature Phase Shift Keying
RF Radio Frequency
RX Receiver
S/N Signal-to-Noise Ratio
SPI Parallel Transport Stream
THD Total Harmonic Distortion
TS DVB MPEG Transport Stream
TX Transmitter
VAC Volts (Alternating Current)
VDC Volts (Direct Current)