Radyne QAM256 User Manual Page 132

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User Manual
Chapter 6. IRD Management
Page 6-8 P/N 2349-72712-01
Table 6-1: Configuration/Receiver Menu Options
DSNG
QPSK
QAM
ATM
G.703
OPTION DESCRIPTION
þ
þ
Viterbi Rate Viterbi Rate
Displays the current rate for the Viterbi correction.
Options available: ½, 2/3, 3/4, 4/5, 5/6, 6/7, 7/8, 8/9.
þ
þ
þ
Spectral
Inversion
Spectral Inversion State
Displays the current state of the spectral inversion function
in the receiver.
Options available: NORMAL, INVERTED.
þ
Signal Spectral
Density
Input Signal Spectral Density Level
Displays the signal spectral density at the RF input to the
receiver. Number is given in dBm /Hz.
þ
Modulation
Mode
DSNG IRD Modulation
Displays the modulation detected at the DSNG IRD
receiver.
Options available: QPSK, 8PSK, 16QAM.
þ
Nyquist Filter
Roll Off
Nyquist Filter Roll-Off
Displays the current roll-off value of the Nyquist filter in the
DSNG IRD.
Options available: 25%, 35%.
þ
Signal Level Input Signal Level
Displays the signal level at the RF input to the receiver.
Number is given in dBm.
þ
VHF/UHF
Frequency
VHF/UHF-Band Frequency Selection
Displays the expected carrier frequency of the received
input signal at the QAM (DVB-C) application.
þ
QAM Mode QAM Mode Select
Selects the QAM Mode of operation for the QAM IRD.
Available options:
16_QAM, 32_QAM, 64_QAM, 128_QAM, 256_QAM.
þ
Channel Bit
Error Rate
Displays the Channel Bit Error Rate parameter
þ
ATM Board Type Displays the ATM Board Type.
þ
VCI Address
(Hex)
Displays the VCI Address
þ
VPI Address
(hex)
Displays the VPI Address
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