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Configuration commands/responses, Modulator configuration commands, 4 configuration commands/responses – Comtech EF Data CIM-300L User Manual

Page 95: 1 modulator configuration commands, Onfiguration, Ommands, Esponses

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CiM-300L IP Enabled Satellite Modem

Rev. 1

Serial Remote Control

CD/CIM300L.IOM

69

5.4 C

ONFIGURATION

C

OMMANDS

/R

ESPONSES

5.4.1 M

ODULATOR

C

ONFIGURATION

C

OMMANDS

Parameter

Type

Protocol

Description

Modulator
Frequency

Command:
Response:


Status:
Response:

>add/MF_nnn.nnnnnn'cr'
RF_OFF'cr''lf']

>add/MF_nnn.nnnnnn'cr''lf']

Where: nnn.nnnnnn = 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''lf']

>add/RF_xxx'cr''lf']

Where: xxx = ON or OFF.

Modulator
Rate Preset
Assignment

Command:
Response:

Status:
Response:

>add/AMRx_nnnn_mmmm.mmm'cr''lf']

>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), OQ12 (OQPSK 1/2),
OQ34 (OQPSK 3/4), and
OQ78 (OQPSK 7/8).

mmmm.mmm = Data rate in kHz.

Modulator
Rate Preset
Selection

Command:
Response:


Status:

>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
and
Selection

Command:
Response:


Status:

>add/SMRV_nnnn_mmmm.mmm'cr'
RF_OFF'cr''lf']

See MR command.

Where: mmmm.mmm = Data rate in kHz.

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), OQ12 (OQPSK 1/2),
OQ34 (OQPSK 3/4), and
OQ78 (OQPSK 7/8).

Note: Setting the modulator turns off the RF transmitter.

Set
Modulator
Power Offset

Command:
Response:

Status:
Response:

>add/MPO_snn.n’cr’’lf’]

>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’’lf’]

>add/MOP_snn.n’cr’’lf’]

Where: snn.n = -30.0 to –5.0, in 0.1 steps (nominal range in
dBm).

Notes: The nominal power range is modified relative to the value

specified by the modulator power offset (MPO_).
The MOP_ command will return status only when local
AUPC is enabled.

Scrambler
Enable

Command:
Response:

Status:
Response:

>add/SE_xxx’cr’’lf’]

>add/SE_xxx’cr’’lf’]

Where: xxx = ON or OFF.