Comtech EF Data SNM-1000 User Manual
Page 152
SNM-1000 Node Control Modem
Revision 3
Remote Control Operation
MN/SNM1000.IOM
A–4
Set Modulator Power
Offset
Command:
Response:
Status:
Response:
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.
Set Modulator Output
Power Level
Command:
Response:
Status:
Response:
Where: snnn.n = -30.0 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_).
Scrambler Enable
Command:
Response:
Status:
Response:
Where: xxx = ON or OFF.
Differential Encoder
Enable
Command:
Response:
Status:
Response:
Where:
In TX Burst mode, xxx = OFF.
In TX Continuous mode, xxx = ON or OFF.
Modulator Type
Command:
Response:
Status:
Response:
Where:
In TX Burst mode,
xxxx = INTL (INTELSAT Open Network).
In TX Continuous mode,
xxxx = INTL (INTELSAT Open Network), EFD
(Comtech EF Data Closed Network), CSC
(Comstream Closed Network), FDC (Fairchild
Closed Network), or SDM51 (SDM51 Compatible).
Modulator Encoder
Type
Command:
Response:
Status:
Response:
Where:
In TX Burst mode,
xxx = VIT (K-7 Viterbi Encoder).
In TX Continuous mode,
xxx = VIT (K-7 Viterbi Encoder)
SEQ (Sequential Encoder)
TUR (Turbo)
Modem Reference
Clock
Command:
Response:
Status:
Response:
Where: xxxxx = INT (INTERNAL), EXT1 (EXTERNAL 1
MHz), EXT5 (EXTERNAL 5 MHz), EXT10 (EXTERNAL
10 MHz), EXT20 (EXTERNAL 20 MHz), OUT10
(OUTPUT 10 MHz).
Modulator Spectrum
Rotation
Command:
Response:
Status:
Response:
Where: xxx = NRM (normal spectrum), INV (inverted
spectrum).
Reed-Solomon
Encoder Enable
Command:
Response:
Status:
Response:
Where: xxx = ON or OFF.