Comtech EF Data SDM-9000 - Manual (Page 222)

Remote Control Operation SDM-9000 Satellite Modem
B–4 Rev. 4
B.3 Configuration Commands/Responses
B.3.1 Modulator
Modulator
Frequency Command:
Response:
Status:
Response:
>add/MF_nnn.nnnn'cr'
RF_OFF'cr''lf']
>add/MF_nnn.nnnn'cr''lf']
Where: nnn.nnnn = Frequency in MHz, 50.0000 to 180.0000, in
2.5 kHz steps.
Note: When the modulator frequency is programmed, the RF
output is switched OFF.
RF Output
(IF Output) Command:
Response:
Status:
Response:
>add/RF_xxx'cr''lf']
>add/RF_xxx'cr''lf']
Where: xxx = ON or OFF.
Modulator
Rate Preset
Assignment Command:
Response: >add/AMRx_nnnnn_mmmmm.m
mm'cr''lf'] Where:
x = A, B, C, or D (preset designator).
nnnnn = One of the following coder rates:
1/2 (QPSK 1/2)
3/4 (QPSK 3/4)
7/8 (QPSK 7/8)
16Q34 (16QAM 3/4)
16Q78 (16QAM 7/8)
8P23 (8PSK 2/3)
8P56 (8PSK 5/6)
N/A (Not Assigned)
mmmmm.mmm = Data rate in kHz.
Note: If the filter is calibrated for the Reed-Solomon, '+RS' will
be appended to the code rate. Example: 3/4+RS_44736.0.
Modulator
Rate Preset
Selection Command:
Response:
Status:
>add/SMRx_'cr'
RF_OFF'cr''lf']
See MR command.
Where: x = A, B, C, or D (preset designator).
Notes:
1. Setting the modulator rate turns OFF the RF transmitter.
2. If the filter is calibrated for the Reed-Solomon, '+RS' will
be appended to the code rate. Example:
3/4+RS_44736.0.
Modulator
Power
Offset Command:
Response:
Status:
Response:
>add/MPO_snn.n'cr''lf']
>add/MPO_snn.n'cr''lf']
Where: snn.n = +40.0 to -40.0, in 0.1 dB increments.
Note: The modulator power offset is added to the nominal
power level to adjust the transmit power range.
Modulator
Output
Power Level Command:
Response:
Status:
Response:
>add/MOP_snn.n'cr''lf']
>add/MOP_snn.n'cr''lf']
Where: snn.n = -20.0 to +5.0, in 0.1 steps (nominal range in
dBm).
Note: The nominal power range is modified relative to the value
specified by the modulator power offset (MPO_).