SDM-300L3 Satellite Modem
Revision 1
Remote Control Operation
MN/SDM300L3.IOM
A–6
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.
Set
Modulator
Output
Power Level
Command:
Response:
Status:
Response:
<add/MOP_snn.n’cr’
>add/MOP_snn.n’cr’’lf’]
<add/MOP_’cr’
>add/MOP_snn.n’cr’’lf’]
Where: snn.n = -30.0 to –5.0, in 0.1 steps (nominal range
in dBm) for the non TX L-Band modem and –40.0 to 0.0,
in 0.1 steps for the TX L-Band modem.
Notes:
1.
The nominal power range is modified relative to
the value specified by the modulator power offset
(MPO_).
2.
The MOP_ command will return status only when
local AUPC is enabled.
Scrambler
Enable
Command:
Response:
Status:
Response:
<add/SE_xxx’cr’
>add/SE_xxx’cr’’lf’]
<add/SE_’cr’
>add/SE_xxx’cr’’lf’]
Where: xxx = ON or OFF.
Differential
Encoder
Enable
Command:
Response:
Status:
Response:
<add/DENC_xxx’cr’
>add/DENC_xxx’cr’’lf’]
<add/DENC_’cr’
>add/DENC_xxx’cr’’lf’]
Where: xxx = ON or OFF.
Modulator
Type
Command:
Response:
Status:
Response:
<add/MT_xxxx’cr’
>add/MT_xxxx’cr’’lf’]
<add/MT_’cr’
>add/MT_xxxx’cr’’lf’]
Where: xxxx = INTL (INTELSAT OPEN NETWORK), EFD
(EF DATA CLOSED NETWORK), CSC (COMSTREAM
CLOSED NETWORK), FDC (FAIRCHILD CLOSED
NETWORK), SDM51 (SDM51 COMPATIBLE).
Modulator
Encoder
Type
Command:
Response:
Status:
Response:
<add/MET_xxx’cr’
>add/MET_xxx’cr’’lf’]
<add/MET_’cr’
>add/MET_xxx’cr’’lf’]
Where: xxx = VIT (K-7 VITERBI ENCODER), SEQ
(SEQUENTIAL ENCODER) or TUR (TURBO).
Modem
Reference
Clock
Command:
Response:
Status:
Response:
<add/MRC_xxxxx’cr’
>add/MRC_xxxxx’cr’’lf’]
<add/MRC_’cr’
>add/MRC_xxxxx’cr’’lf’]
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:
<add/MSR_xxx’cr’
>add/MSR_xxx’cr’’lf’]
<add/MSR_’cr’
>add/MSR_xxx’cr’’lf’]
Where: xxx = NRM (normal spectrum), INV (inverted
spectrum).
Reed-
Solomon
Encoder
Enable
Command:
Response:
Status:
Response:
<add/RSEN_xxx’cr’
>add/RSEN_xxx’cr’’lf’]
<add/RSEN_’cr’
>add/RSEN_xxx’cr’’lf’]
Where: xxx = ON or OFF.
Transmit
BPSK Data
Ordering
Command:
Response:
Status:
Response:
<add/TDA_xxx’cr’
>add/TDA_xxx’cr’’lf’]
<add/TDA_’cr’
>add/TDA_xxx’cr’’lf’]
Where: xxx = NRM (STANDARD), INV (NON-
STANDARD).
Carrier Only
Mode
Command:
Response:
Status:
Response:
<add/COM_xxxxxx’cr’
>add/COM_xxxxxx’cr’’lf’]
<add/COM_’cr’
>add/COM_xxxxxx’cr’’lf’]
Where: xxxxxx = OFF (NORMAL-MODULATED), DUAL
(DUAL-CW), OFFSET (OFFSET-CW), CENTER
(CENTER-CW).
Reed-
Solomon
Interleave
Value
Command:
Response:
Status:
Response:
<add/TRSI_xx’cr’
>add/TRSI_xx’cr’’lf’]
<add/TRSI_’cr’
>add/TRSI_xx’cr’’lf’]
Where: xx = 4, 8, or 16.
TX 8PSK
2/3
IESS-310
Operation
Command:
Response:
Status:
Response:
<add/T310_xxx’cr’
>add/T310_xxx’cr’’lf’]
<add/T310_’cr’
>add/T310_xxx’cr’’lf’]
Where: xxx = ON or OFF.
