Demodulator configuration commands, A.6 demodulator configuration commands – Comtech EF Data SDM-300A User Manual

Page 400

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SDM-300A Satellite Modem

Revision 6

Remote Control Operation

MN/SLM3650.IOM

A–8

A.6

Demodulator Configuration Commands

Set
Demodulator
Frequency

Command:
Response:

Status:
Response:

<add/DF_nnn.nnnnnn'cr'
>add/DF_nnn.nnnnnn'cr''lf']

<add/DF_'cr'
>add/DF_nnn.nnnnnn'cr''lf']

Where: nnn.nnnnnn = Frequency in MHz, 50.000000 to
180.000000 in 1 Hz steps.

Demodulator
Rate Preset
Assignment

(Sets the
pre-assigned
rates)

Command:
Response:

Status:
Response:

<add/ADRx_nnnn_mmmm.mmm'cr'
>add/ADRx_nnnn_mmmm.mmm'cr''lf']

<add/ADRx_'cr'
>add/ADRx_nnnn_mmmm.mmm'cr''lf']

Where:
x = A, B, C, D, or V [preset designator].

For Non-Turbo nnnn = 1/2 (QPSK 1/2), [coder rate], 3/4
(QPSK 3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2), OQ12
(OQPSK 1/2), OQ34 (OQPSK 3/4), and OQ78 (OQPSK
7/8), OQSK (OQPSK 1/1), BPSK (BPSK 1/1), QPSK (QPSK
1/1), and 8P23 (8PSK 2/3)

For Turbo nnnn= 8P34 (8PSK 3/4), 2144 (BPSK 21/44),
B516 (BPSK 5/16), 1/2 (QPSK 1/2), OQ12 (OQPSK 1/2),
3/4 (QPSK 3/4), and OQ34 (OQPSK 3/4)

mmmm.mmm = Data rate in kHz.

Demodulator
Rate Preset
Selection

(Selects the
pre-assigned
rates)

Command:
Response:

Status:

<add/SDRx_'cr'
>add/SDRx_'cr''lf']

See DR command.

Where: x = A, B, C, D, or V (preset designator).

Demodulator
Rate
Variable
Assignment
& Selection

(Selects and
sets the
variable rate)

Command:
Response:

Status:

<add/SDRV_nnnn_mmmm.mmm'cr'
>add/SDRV_nnnn_mmmm.mmm'cr''lf']

See DR command.

Where:

For Non-Turbo nnnn = 1/2 (QPSK 1/2), [coder rate], 3/4
(QPSK 3/4), 7/8 (QPSK 7/8), BP12 (BPSK 1/2), OQ12
(OQPSK 1/2), OQ34 (OQPSK 3/4), and OQ78 (OQPSK
7/8), OQSK (OQPSK 1/1), BPSK (BPSK 1/1), QPSK (QPSK
1/1), and 8P23 (8PSK 2/3)

For Turbo nnnn= 8P34 (8PSK 3/4), 2144 (BPSK 21/44),
B516 (BPSK 5/16), 1/2 (QPSK 1/2), OQ12 (OQPSK 1/2),
3/4 (QPSK 3/4), and OQ34 (OQPSK 3/4)

mmmm.mmm = Data rate in kbps

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