SDM-2020 Satellite Demodulator
Remote Control Operation
Rev. 3
B–9
B.6 Configuration
Status
Demodulator
Rate
Command:
Response:
<add/DR_'cr'
>add/DR_nnnnn_mmm.mmmmmm'cr''lf
']
Where
nnnnn = 1/2 (QPSK 1/2) [Decoder rate], 3/4 (QPSK
3/4), 7/8 (QPSK 7/8) , 5/6 (QPSK 5/6), 2/3 (QPSK
2/3), 8P23 (8PSK 2/3), 8P56 (8PSK 5/6), 8P89
(8PSK 8/9), 16QAM3/4, 16QAM7/8.
mmm.mmmmmm = Data rate in MHz.
Note: When using a SMPTE 310M interface, the
data rate is fixed at 19.392658 MHz. While the
code rate can be changed as applicable, an invalid
parameter message will be generated if any other
data rate is input for change.
Demodulator
Config.
Status
Command:
Response:
<add/DCS_'cr'
>add/DCS_'cr'
DF_nnnn.nnnn'cr'
DR_nnnn_mmm.mmmmmm'cr'
DE_xxx'cr'
SWR_nnnnnnn'cr'
SR_xxx'cr'
BERT_xxxx'cr'
DSR_xxx'cr''lf']
EBNT_xxxx’cr’’If’]
Demodulator Frequency
Demodulator Rate
Descrambler Enable
Sweep Width Range
Sweep Reacquisition
BER Threshold
Demodulator Spectrum Rotation
E
b
/N
0
Threshold
The demodulator configuration status command
causes a block of data to be returned by the addressed
demodulator. This block of data reflects the current
configuration status of the demodulator module.
Additional configuration status of new options and
features will always be appended to the end.
Summary of Contents for SDM-2020
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Page 35: ...SDM 2020 Satellite Demodulator Installation Rev 3 2 3 Figure 2 1 Typical Rack Installation...
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Page 212: ...SDM 2020 Satellite Demodulator Glossary Rev 2 g 3 W Watt...
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