DM240XR High-Speed Digital Modulator
Glossary
TM120 – Rev. 1.1
G-5
Q
QAM Quadrature
Amplitude
Modulation
QPSK
Quadrature Phase Shift Keying
R
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.
S
SCC
Satellite Control Channel. A Radyne ComStream satellite format.
SEQ Sequential
SYNC Synchronize
T
TBD
To Be Designed or To Be Determined
TM Technical
Manual
TPC
Turbo Product Codes
TRE Trellis
TT Terminal
Timing
Tx Transmit
(Transmitter)
TxD Transmit
Data
U
UART
Universal Asynchronous Receiver/Transmitter
UUT Unit
Under
Test
V
V Volts
VAC
Volts, Alternating Current
VCO
Voltage Controlled Oscillator
VDC Volts,
Direct
Current
VIT Viterbi
Decoding
Summary of Contents for DM240XR
Page 2: ......
Page 10: ...Table of Contents DM240XR High Speed Digital Modulator x TM120 Rev 1 1 ...
Page 12: ...Introduction DM240XR High Speed Digital Modulator 1 2 TM120 Rev 1 1 ...
Page 16: ...Installation DM240XR High Speed Digital Modulator 2 4 TM120 Rev 1 1 ...
Page 19: ...DM240XR High Speed Digital Modulator Theory of Operation TM120 Rev 1 1 3 3 ...
Page 55: ...User Interfaces DM240XR High Speed Digital Modulator 4 36 TM120 Rev 1 1 ...
Page 67: ...Rear Panel Interfaces DM240XR DVB High Speed Digital Modulator 5 12 TM120 Rev 1 1 ...
Page 69: ...Maintenance and Troubleshooting DM240XR High Speed Digital Modulator 6 2 TM120 Rev 1 1 ...
Page 79: ...Technical Specifications DM240XR High Speed Digital Modulator 7 10 TM120 Rev 1 1 ...
Page 103: ...Appendix A DM240XR High Speed Digital Modulator A 24 TM120 Rev 1 1 ...
Page 124: ...DM240XR High Speed Digital Modulator Appendix B TM120 Rev 1 1 B 21 ...