Comtech EF Data CDM-IP 300L - Manual (Page 127)

CDM-IP 300L IP-Centric Satellite Modem Rev. 1
CD/CDMIP300L.IOM
101
5.4.2 D
EMODULATOR
C
ONFIGURATION
C
OMMANDS
Parameter Type Protocol Description
Set
Demodulator
Frequency Command:
Response:
Status:
Response: <add/DF_nnnn.nnnn'cr'
>add/DF_nnnn.nnnn'cr''lf']
<add/DF_'cr'
>add/DF_nnnn.nnnn'cr''lf']
Where: nnnn.nnnn = Frequency in MHz, 950.0000 to
1750.000 in 100 Hz steps.
Demodulator
Rate Preset
Assignment Command:
Response:
Status:
Response: <add/ADRx_nnnn_mmmm.mmm'cr'
>add/ADRx_nnnn_mmmm.mmm'cr''lf']
<add/ADRx_'cr'
>add/ADRx_nnnn_mmmm.mmm'cr''lf']
Where:
x = A, B, C, D, or V [preset designator].
nnnn = 1/2 (QPSK 1/2), [decoder rate], 3/4 (QPSK 3/4), 7/8
(QPSK 7/8), BP12 (BPSK 1/2), 8P23 (8-PSK 2/3), OQ12
(OQPSK 1/2), OQ34 (OQPSK 3/4), and
OQ78 (OQPSK 7/8)
mmmm.mmm = Data rate in kHz.
Demodulator
Rate Preset
Selection Command:
Response:
Status:
<add/SDRx_'cr'
>add/SDRx_'cr''lf']
See DR command.
Where: x = A, B, C, D, or V (preset designator).
Demodulator
Rate Variable
Assignment &
Selection Command:
Response:
Status:
<add/SDRV_nnnn_mmmm.mmm'cr'
>add/SDRV_nnnn_mmmm.mmm'cr''lf']
See DR command.
Where:
nnnn = 1/2 (QPSK 1/2), [decoder rate], 3/4 (QPSK 3/4), 7/8
(QPSK 7/8), BP12 (BPSK 1/2), 8P23 (8-PSK 2/3), OQ12
(OQPSK 1/2), OQ34 (OQPSK 3/4), and
OQ78 (OQPSK 7/8)
mmmm.mmm = Data rate in kHz
Descramble
Enable Command:
Response:
Status:
Response: <add/DE_xxx'cr'
>add/DE_xxx'cr''lf']
<add/DE_'cr'
>add/DE_xxx'cr''lf']
Where: xxx = ON or OFF.
Differential
Decoder
Enable Command:
Response:
Status:
Response: <add/DDEC_xxx'cr'
>add/DDEC_xxx'cr''lf']
<add/DDEC_'cr'
>add/DDEC_xxx'cr''lf']
Where: xxx = ON or OFF.
Sweep Center
Frequency Command:
Response:
Status:
Response: <add/SCF_snnnnn'cr'
>add/SCF_snnnnn'cr''lf']
<add/SCF_'cr'
>add/SCF_snnnnn'cr''lf']
Where: snnnnn = -35000 to +35000, in 1 Hz steps.
Sweep Width
Range Command:
Response:
Status:
Response: <add/SWR_nnnnn'cr'
>add/SWR_nnnnn'cr''lf']
<add/SWR_'cr'
>add/SWR_nnnnn'cr''lf']
Where: nnnnn = 0 to 70000, in 1 Hz steps.