Comtech EF Data DD240XR Rev Е - Manual (Page 121)

DD240XR High-Speed Digital Demodulator Glossary
MN-DD240XR – Rev. E G-5
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
SEQ Sequential
SYNC Synchronize
T
TBD To Be Designed or To Be Determined
TM Technical Manual
TPC Turbo Product Codes
TRE Trellis
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
W X Y Z
W Watt
Misc.
µs Microsecond
Ohms Ohms
16QAM 16 Quadrature Amplitude Modulation
8PSK 8 Phase Shift Keying
16APSK 16-ary Amplitude and Phase Shift Keying