Comtech EF Data SNM-1000 - Manual (Page 151)

SNM-1000 Node Control Modem Revision 3
Remote Control Operation MN/SNM1000.IOM
A–3
A.3 Configuration Commands/Responses
A.3.1 Modulator Configuration Commands
Modulator Frequency Command:
Response:
Status:
Response: MC MF_nnn.nnnn ' cr '
MF_nnn.nnnn ' cr '
RF_OFF ' cr '' lf ' ]
MC MF_
' cr'
MF_nnn.nnnn'cr''lf']
Where: nnn.nnnn = Frequency in MHz, 50.0000 to
180.0000, in 1 Hz steps.
Note: When the modulator frequency is programmed,
the RF output is switched OFF.
RF Output (IF Output) Command:
Response:
Status:
Response: MC RF_xxx'cr'
RF_xxx'cr''lf']
MC RF_'cr'
RF_xxx'cr''lf']
Where: xxx = ON or OFF.
Modulator Rate Preset
Assignment Command:
Response:
Status:
Response: MC
AMRx_nnnn_mmm.mmm'cr'
AMRx_nnnn_mmm.mmm'cr''lf']
MC AMRx_'cr'
AMRx_nnnn_mmm.mmm'cr''lf'] Where:
x = A, B, C, D or V (Preset designator).
In TX Burst mode,
nnnn = 1/2, or 3/4 (Coder rate).
In TX continuous mode,
nnnn = 1/2 (QPSK 1/2), [coder rate], 3/4 (QPSK
3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2), 8P23
(8PSK 2/3), OQ12 (OQPSK 1/2), OQ34 (OQPSK
3/4), OQ78 (OQPSK 7/8), OQSK (OQPSK 1/1),
BPSK (BPSK 1/1) (QPSK (QPSK 1/1),
2144 (BPSK 21/44), B516 (BPSK 5/16), 8P34
(8PSK 3/4).
mmm.mmm = Data rate in kHz.
Modulator Rate Preset
Selection Command:
Response:
Status:
MC SMRx_'cr'
SMRx_'cr'
RF_OFF'cr''lf']
(See MR command.) Where: x = A, B, C, D, or V (Preset designator).
Note: Setting the modulator rate turns the RF
transmitter OFF.
Modulator Rate
Variable Assignment
and Selection Command:
Response:
Status:
MC
SMRV_nnnn_mmm.mmm'cr'
SMRV_nnnn_mmm.mmm'cr'
RF_OFF'cr''lf']
(See MR command.) Where:
In TX Burst mode,
nnnn = 1/2 or 3/4 (Coder rate).
In TX Continuous mode,
nnnn = 1/2 (QPSK 1/2), [coder rate], 3/4 (QPSK
3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2), 8P23
(8PSK 2/3), OQ12 (OQPSK 1/2), OQ34 (OQPSK
3/4), OQ78 (OQPSK 7/8), OQSK (OQPSK 1/1),
BPSK (BPSK 1/1) (QPSK (QPSK 1/1),
2144 (BPSK 21/44), B516 (BPSK 5/16), 8P34
(8PSK 3/4).
mmm.mmm = Data rate in kHz.
Note: Setting the modulator turns the RF transmitter
OFF.