Radyne DMD20 Installation And Operation Manual page 187

Glossary
NC Normally Closed
NO Normally Open
ns Nanoseconds
NVRAM Non-Volatile Random Access Memory
N/C No Connection or Not Connected
OQPSK Offset Quadrature Phase Shift Keying
PC Personal Computer
PD Buffer Plesiochronous/ Doppler Buffer
PLL Phase Locked Loop
ppb Parts per Billion
ppm Parts per Million
P/N Part Number
QAM Quadrature Amplitude Modulation
QPSK Quadrature Phase Shift Keying
RAM Random Access Memory
RF Radio Frequency
ROM Read Only Memory
rms Root Mean Square
RU Rack Unit. 1 RU = 1.75"/4.45 cm
Rx Receive (Receiver)
RxD Receive Data
R-S Reed-Solomon Coding. Reed-Solomon codes are block-based error correcting
codes with a wide range of applications in digital communications and storage.
SEQ Sequential
SYNC Synchronize
G-4
DMD20 Universal Satellite Modem
N
O
P
Q
R
S
TM105 – Rev. 1.1