Configuration Commands/Responses; Demodulator Configuration Commands - Comtech EF Data SDM-2020 Installation And Operation Manual

SDM-2020 Satellite Demodulator
B.3

Configuration Commands/Responses

B.3.1

Demodulator Configuration Commands

Demodulator Command:
Frequency Response:
Status:
Response:
Demodulator Command:
Rate Response:
Assignment
Status:
Response:
Symbol Rate Command:
Assignment Response:
Status:
Response:
Descrambler Command:
Enable Response:
Status:
Response:
Sweep Width Command:
Range Response:
Status:
Response:
Sweep Command:
Reacquisi- Response:
tion
Status:
Response:
Rev. 3
<add/DF_nnnn.nnnn'cr'
>add/DF_nnnn.nnnn'cr''lf']
<add/DF_'cr'
>add/DF_nnnn.nnnn'cr''lf']
<add/ADRV_nnnnn_mmm.mmmmmm'cr
'
>add/ADRV_nnnnn_mmm.mmmmmm'cr
''lf']
<add/ADRV_'cr'
>add/ADRV_nnnnn_mmm.mmmmmm'cr
''lf']
<add/ASR_nnnnn_mm.mmmmmm'cr'
>add/ASR_nnnnn_mm.mmmmmm'cr''lf']
<add/ASR_'cr'
>add/ASR_nnnnn_mm.mmmmmm'cr''lf']
<add/DE_xxx'cr'
>add/DE_xxx'cr''lf']
<add/DE_'cr'
>add/DE_xxx'cr''lf']
<add/SWR_nnnnnnn'cr'
>add/SWR_nnnnnnn'cr''lf']
<add/SWR_'cr'
>add/SWR_nnnnnnn'cr''lf']
<add/SR_xxx'cr'
>add/SR_xxx'cr''lf']
<add/SR_'cr'
>add/SR_xxx'cr''lf']
Remote Control Operation
Where: nnnn.nnnn =
For L-Band only: Frequency in MHz, 950.0000 to
1750.0000 in 2.5 kHz steps.
For 70/140 MHz only: Frequency in MHz, 70.0000 to
180.0000 in 2.5 kHz steps.
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.
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.
mm.mmmmmm = Symbol 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.
Where: xxx = ON or OFF.
Where: nnnnnnn=
For L-Band only: 0 to 1000000 in 1 Hz steps.
For 70/140 MHz only: 0 to 60000 in 1 Hz steps.
Where: xxx = 0 to 999 (number of seconds).
B–5