Comtech EF Data SDM-300A User Manual
Page 398
SDM-300A Satellite Modem
Revision 6
Remote Control Operation
MN/SLM3650.IOM
A–6
Modulator
Encoder
Type
Command:
Response:
Status:
Response:
<add/MET_xxx’cr’
>add/MET_xxx’cr’’lf’]
<add/MET_xxx’cr’
>add/MET_xxx’cr’’lf’]
Where: xxx = VIT (K-7 VITERBI ENCODER), SEQ
(SEQUENTIAL ENCODER), TUR (TURBO ENCODER)
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).
Note: Must have High Stability option installed to select OUT
10 (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.
Note: Always Off in Turbo mode.
Transmit
BPSK Data
Ordering
Command:
Response:
Status:
Response:
<add/TDA_xxx’cr’
>add/TDA_xxx’cr’’lf’]
<add/TDA_xxx’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_xxxxxx’cr’
>add/COM_xxxxxx’cr’’lf’]
Where: xxxxxx = OFF (NORMAL-MODULATED), DUAL
(DUAL-CW), OFFSET (OFFSET-CW), CENTER (CENTER-
CW).
TX 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.