
Glossary DD240XR High-Speed Digital Demodulator
G-4 MN-DD240XR – Rev. E
L
LCD Liquid Crystal Display
LDPC Low-Density Parity Check
LED Light Emitting Diode
LO Local Oscillator
M
mA Milliampere
Mbps Megabits per Second
MFAS Multi-Frame Acquisition Sync. See FAS.
MHz Megahertz
MIB Management Information Base
Mod Modulator or Modulated
MPEG Moving Pictures Experts Group
ms or msec Millisecond
M&C Monitor and Control
N
NC Normally Closed
NO Normally Open
ns Nanoseconds
NVRAM Non-Volatile Random Access Memory
N/C No Connection or Not Connected
O
OQPSK Offset Quadrature Phase Shift Keying
P
PC Personal Computer
PD Buffer Plesiochronous/ Doppler Buffer
PLL Phase Locked Loop
ppb Parts per Billion
ppm Parts per Million
P/N Part Number
Q
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
R
RAM Random Access Memory
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