Comtech EF Data SNM-1002 - Manual (Page 130)

SNM-1002 LinkSync
 Modem
Revision 2
Remote Control Operation MN/SNM1002.OM
A–4
A.3 Configuration Commands/Responses
A.3.1 Modulator
Modulator
Frequency Command:
Response:
Status:
Response: <add/MF_nnn.nnnnnn'cr'
>add/MF_nnn.nnnnnn'cr'
RF_OFF'cr''lf']
<add/MF_'cr'
>add/MF_nnn.nnnnnn'cr''lf']
Where: nnn.nnnn = Frequency in MHz,
50.000000 to 180.000000 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: <add/RF_xxx'cr'
>add/RF_xxx'cr''lf']
<add/RF_'cr'
>add/RF_xxx'cr''lf']
Where: xxx = ON or OFF.
Modulator
Rate Preset
Assignment Command:
Response:
Status:
Response: <add/AMRx_nnnn_mmmm.mmm'cr'
>add/AMRx_nnnn_mmmm.mmm'cr''lf']
<add/AMRx_'cr'
>add/AMRx_nnnn_mmmm.mmm'cr''lf']
Where:
x = A, B, C, D, or V [preset designator].
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).
mmmm.mmm = Data rate in kHz.
Modulator
Rate Preset
Selection Command:
Response:
Status:
<add/SMRx_'cr'
>add/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 off the
RF transmitter.
Modulator
Rate Variable
Assignment &
Selection Command:
Response:
Status:
<add/SMRV_nnnn_mmmm.mmm'cr'
>add/SMRV_nnnn_mmmm.mmm'cr'
RF_OFF'cr''lf']
See MR command.
Where:
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).
mmmm.mmm = Data rate in kHz.
Note: Setting the modulator turns off the RF
transmitter.
Set Modulator
Power Offset Command:
Response:
Status:
Response: <add/MPO_snn.n'cr'
>add/MPO_snn.n'cr''lf']
<add/MPO_'cr'
>add/MPO_snn.n'cr''lf']
Where: snn.n = +99.0 to -99.0, in 0.1 dB
increments.
Note: The modulator power offset is added to
the nominal power level to adjust the transmit
power range.